MOT Risk Index.co.uk

Mercedes-Benz GL MOT pass rate and common problems

83.4% of Mercedes-Benz GLs passed the 2024 MOT (based on 3,626 first tests): 79.2% at the first attempt and 4.2% after a fix at the test centre (PRS). About 1 in 5 failed the first attempt. For its age, it fails 39% less often than normal: MOT Risk Index 61.5 (95% CI 57.7–65.5; 100 = normal).

Mercedes-Benz GL at a glance, 2024 MOT
MeasureValueUnitCompared withYearsTests
MOT pass rate83.4%incl. 4.2% fixed at the test centre20243626
Passed at the first attempt79.2%all first tests20243626
MOT Risk Index (95% CI 57.7–65.5)61.5index100 = normal for its age · rank 144 (tied) of 761 (1 = fails least for its age)20243626
Biggest excess: Tyres9.9per 1009.3 same-age2019–202420497
Dangerous defects10.3per 10011.2 UK, not age-adjusted2019–202420497
Advisory items108.0per 100127.1 UK, not age-adjusted2019–202420497
strip · Mercedes-Benz GL · MOT Risk Index · 61.5 vs 100 = normal · 2024
MOT Risk Index · Mercedes-Benz GL. 0–240; 100 = normal for its age; median model 92.8 · rank 144 (tied) of 761 (1 = fails least for its age). It would rank between 126 and 166 anywhere within its 95% interval, other models held where they are. DVSA, 2024.
Mercedes-Benz GL index position among 761 models
MeasureValueUnitCompared withYearsTests
Rank144of 761published models, 1 = fails least for its age20243626
Best rank within its 95% interval126rankother models held where they are20243626
Worst rank within its 95% interval166rankother models held where they are20243626

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Data release dvsa-2024-v2 (24 Sep 2026) · full dataset (v5). This model's index changed from 54.1 to 61.5 in the 24 September 2026 release, after duplicate test records were removed.

What actually fails on a Mercedes-Benz GL MOT, and how often?

Mercedes-Benz GL MOTs fail most often on ‘lamps, reflectors and electrical equipment’: 11 per 100 tests, against 17.8 for UK cars of the same age (2019–2024, n = 20,497).

bar · Mercedes-Benz GL · Lamps, reflectors and electrical equipment · 11 vs 17.8 · 2019–2024
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Lamps, reflectors and electrical equipment11per 10017.82019–20242254
Tyres9.9per 1009.32019–20242034
Brakes8.7per 10011.72019–20241785
Body, chassis, structure5.9per 1005.32019–20241218
Visibility5.2per 1007.92019–20241061
Suspension3.5per 10015.82019–2024708

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 20,497 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Tyres, brakes and suspension: how does the Mercedes-Benz GL compare with cars of the same age?

The biggest excess for the Mercedes-Benz GL is tyres at age 4: 7.3 failures per 100 tests, against 4.5 for same-age cars of comparable models (2019–2024, n = 945).

bullet · Mercedes-Benz GL · Tyres, age 4 · 7.3 vs 4.5 · 2019–2024
Tyres, age 4: 7.3 vs 4.5. Brakes, age 4: 2.4 vs 2.4. Suspension, age 4: 0.3 vs 1.2. Tyres, age 5: 7.5 vs 5.1. Brakes, age 5: 1.8 vs 3.1. Suspension, age 5: 0.4 vs 2.2. Tyres, age 6: 7.3 vs 5.5. Brakes, age 6: 1.9 vs 3.8. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Tyres, age 47.3per 1004.52019–2024945
Brakes, age 42.4per 1002.42019–2024945
Suspension, age 40.3per 1001.22019–2024945
Tyres, age 57.5per 1005.12019–20241492
Brakes, age 51.8per 1003.12019–20241492
Suspension, age 50.4per 1002.22019–20241492
Tyres, age 67.3per 1005.52019–20242016
Brakes, age 61.9per 1003.82019–20242016
Full table
Further values · 2019–2024
MeasureValueUnitCompared withYearsTests
Suspension, age 60.8per 1003.72019–20242016
Tyres, age 77.8per 1006.02019–20242022
Brakes, age 72.0per 1004.52019–20242022
Suspension, age 70.8per 1005.72019–20242022
Tyres, age 86.7per 1006.32019–20242130
Brakes, age 82.4per 1005.42019–20242130
Suspension, age 81.5per 1007.82019–20242130

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Will my Mercedes-Benz GL's advisory become a fail at the next MOT?

Mercedes-Benz GL advisories turn into fails less often than on the median model; the one to watch is brakes: advisories on it became a fail at the next MOT 9.5% of the time.

funnel · Mercedes-Benz GL · Brakes · 9.5 vs median model · 2019–2024
Advisories on brakes: 9.5 of 100 became a fail on the same item at the next MOT. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Brakes9.5% next failmedian model2019–20242888
Tyres9.2% next failmedian model2019–20243396
Suspension7.0% next failmedian model2019–20241093
Noise, emissions and leaks5.7% next failmedian model2019–20241155
Non-component advisories0% next failmedian model2019–2024987

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

My Mercedes-Benz GL got an MOT advisory: what gets flagged most?

Mercedes-Benz GL MOTs flag tyres most: 39.2 advisories per 100 tests, against 39.7 across UK tests (2019–2024, n = 20,497).

bar · Mercedes-Benz GL · Tyres · 39.2 vs 39.7 · 2019–2024
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Tyres39.2per 10039.72019–20248030
Brakes35.9per 10034.72019–20247349
Suspension12.3per 10026.22019–20242530
Noise, emissions and leaks8.8per 1005.22019–20241808
Non-component advisories7.2per 1007.82019–20241475
Identification of the vehicle1.2per 1002.52019–2024252

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 20,497 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

What is likely to fail next on a Mercedes-Benz GL?

For Mercedes-Benz GLs aged 6 to 8 whose last MOT was a pass, the item most likely to fail at the next MOT is tyres: 6.0% failed on it (2019–2024, n = 3,086).

bar · Mercedes-Benz GL · Tyres, under 3 years old, after a pass (rough estimate: 104 cars) · 7.7 vs baseline · 2019–2024
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Tyres, under 3 years old, after a pass (rough estimate: 104 cars)7.7% next fail2019–2024104
Visibility, under 3 years old, after a pass (rough estimate: 104 cars)6.7% next fail2019–2024104
Tyres, 3 to 5 years old, after a pass5.7% next fail2019–20242149
Body, chassis, structure, 3 to 5 years old, after a pass2.1% next fail2019–20242149
Visibility, 3 to 5 years old, after a pass2.1% next fail2019–20242149
Lamps, reflectors and electrical equipment, 3 to 5 years old, after a pass2% next fail2019–20242149
Brakes, 3 to 5 years old, after a pass1.2% next fail2019–20242149
Noise, emissions and leaks, 3 to 5 years old, after a pass1.2% next fail2019–20242149
Full table
Further values · 2019–2024
MeasureValueUnitCompared withYearsTests
Suspension, 3 to 5 years old, after a pass0.6% next fail2019–20242149
Identification of the vehicle, 3 to 5 years old, after a pass0.4% next fail2019–20242149
Seat belts and supplementary restraint systems, 3 to 5 years old, after a pass0.4% next fail2019–20242149
Road wheels, 3 to 5 years old, after a pass0.2% next fail2019–20242149
Tyres, 3 to 5 years old, after an advisory9.0% next fail2019–2024776
Body, chassis, structure, 3 to 5 years old, after an advisory4.1% next fail2019–2024776
Visibility, 3 to 5 years old, after an advisory3.9% next fail2019–2024776
Lamps, reflectors and electrical equipment, 3 to 5 years old, after an advisory3.4% next fail2019–2024776
Brakes, 3 to 5 years old, after an advisory2.8% next fail2019–2024776
Noise, emissions and leaks, 3 to 5 years old, after an advisory1.6% next fail2019–2024776
Suspension, 3 to 5 years old, after an advisory0.8% next fail2019–2024776
Tyres, 3 to 5 years old, after a fail10.7% next fail2019–2024523
Lamps, reflectors and electrical equipment, 3 to 5 years old, after a fail6.1% next fail2019–2024523
Visibility, 3 to 5 years old, after a fail5.9% next fail2019–2024523
Body, chassis, structure, 3 to 5 years old, after a fail3.1% next fail2019–2024523
Noise, emissions and leaks, 3 to 5 years old, after a fail1.7% next fail2019–2024523
Brakes, 3 to 5 years old, after a fail1.5% next fail2019–2024523
Suspension, 3 to 5 years old, after a fail1.0% next fail2019–2024523
Tyres, 6 to 8 years old, after a pass6.0% next fail2019–20243086
Body, chassis, structure, 6 to 8 years old, after a pass4.9% next fail2019–20243086
Visibility, 6 to 8 years old, after a pass3.7% next fail2019–20243086
Lamps, reflectors and electrical equipment, 6 to 8 years old, after a pass3.3% next fail2019–20243086
Brakes, 6 to 8 years old, after a pass1.8% next fail2019–20243086
Noise, emissions and leaks, 6 to 8 years old, after a pass1.6% next fail2019–20243086
Suspension, 6 to 8 years old, after a pass0.9% next fail2019–20243086
Seat belts and supplementary restraint systems, 6 to 8 years old, after a pass0.8% next fail2019–20243086
Identification of the vehicle, 6 to 8 years old, after a pass0.7% next fail2019–20243086
Road wheels, 6 to 8 years old, after a pass0.5% next fail2019–20243086
Tyres, 6 to 8 years old, after an advisory8.8% next fail2019–20241438
Body, chassis, structure, 6 to 8 years old, after an advisory7.2% next fail2019–20241438
Visibility, 6 to 8 years old, after an advisory5.1% next fail2019–20241438
Lamps, reflectors and electrical equipment, 6 to 8 years old, after an advisory3.8% next fail2019–20241438
Brakes, 6 to 8 years old, after an advisory2.8% next fail2019–20241438
Noise, emissions and leaks, 6 to 8 years old, after an advisory1.9% next fail2019–20241438
Suspension, 6 to 8 years old, after an advisory1.0% next fail2019–20241438
Seat belts and supplementary restraint systems, 6 to 8 years old, after an advisory0.8% next fail2019–20241438
Identification of the vehicle, 6 to 8 years old, after an advisory0.4% next fail2019–20241438
Road wheels, 6 to 8 years old, after an advisory0.4% next fail2019–20241438
Tyres, 6 to 8 years old, after a fail9.7% next fail2019–2024984
Body, chassis, structure, 6 to 8 years old, after a fail8.9% next fail2019–2024984
Visibility, 6 to 8 years old, after a fail7.2% next fail2019–2024984
Lamps, reflectors and electrical equipment, 6 to 8 years old, after a fail6.7% next fail2019–2024984
Brakes, 6 to 8 years old, after a fail3.9% next fail2019–2024984
Noise, emissions and leaks, 6 to 8 years old, after a fail3.9% next fail2019–2024984
Suspension, 6 to 8 years old, after a fail1.7% next fail2019–2024984
Seat belts and supplementary restraint systems, 6 to 8 years old, after a fail1.0% next fail2019–2024984
Identification of the vehicle, 6 to 8 years old, after a fail0.7% next fail2019–2024984
Road wheels, 6 to 8 years old, after a fail0.6% next fail2019–2024984
Lamps, reflectors and electrical equipment, 9 to 11 years old, after a pass5.8% next fail2019–20241348
Body, chassis, structure, 9 to 11 years old, after a pass5.0% next fail2019–20241348
Visibility, 9 to 11 years old, after a pass4.7% next fail2019–20241348
Tyres, 9 to 11 years old, after a pass3.8% next fail2019–20241348
Brakes, 9 to 11 years old, after a pass3.5% next fail2019–20241348
Suspension, 9 to 11 years old, after a pass2.3% next fail2019–20241348
Noise, emissions and leaks, 9 to 11 years old, after a pass1.6% next fail2019–20241348
Seat belts and supplementary restraint systems, 9 to 11 years old, after a pass0.9% next fail2019–20241348
Identification of the vehicle, 9 to 11 years old, after a pass0.7% next fail2019–20241348
Steering, 9 to 11 years old, after a pass0.4% next fail2019–20241348
Lamps, reflectors and electrical equipment, 9 to 11 years old, after an advisory9.2% next fail2019–2024869
Body, chassis, structure, 9 to 11 years old, after an advisory7.4% next fail2019–2024869
Brakes, 9 to 11 years old, after an advisory5.8% next fail2019–2024869
Visibility, 9 to 11 years old, after an advisory5.8% next fail2019–2024869
Tyres, 9 to 11 years old, after an advisory5.5% next fail2019–2024869
Suspension, 9 to 11 years old, after an advisory3.5% next fail2019–2024869
Noise, emissions and leaks, 9 to 11 years old, after an advisory3.2% next fail2019–2024869
Steering, 9 to 11 years old, after an advisory0.7% next fail2019–2024869
Lamps, reflectors and electrical equipment, 9 to 11 years old, after a fail13.7% next fail2019–2024620
Brakes, 9 to 11 years old, after a fail9.5% next fail2019–2024620
Body, chassis, structure, 9 to 11 years old, after a fail7.3% next fail2019–2024620
Visibility, 9 to 11 years old, after a fail6.6% next fail2019–2024620
Tyres, 9 to 11 years old, after a fail5.8% next fail2019–2024620
Suspension, 9 to 11 years old, after a fail3.4% next fail2019–2024620
Noise, emissions and leaks, 9 to 11 years old, after a fail2.9% next fail2019–2024620
Seat belts and supplementary restraint systems, 9 to 11 years old, after a fail1.9% next fail2019–2024620
Steering, 9 to 11 years old, after a fail1.3% next fail2019–2024620
Road wheels, 9 to 11 years old, after a fail1.1% next fail2019–2024620
Identification of the vehicle, 9 to 11 years old, after a fail1.0% next fail2019–2024620
Lamps, reflectors and electrical equipment, 12 to 14 years old, after a pass9.2% next fail2019–20241067
Brakes, 12 to 14 years old, after a pass6.6% next fail2019–20241067
Body, chassis, structure, 12 to 14 years old, after a pass4.8% next fail2019–20241067
Suspension, 12 to 14 years old, after a pass4.8% next fail2019–20241067
Visibility, 12 to 14 years old, after a pass3.7% next fail2019–20241067
Tyres, 12 to 14 years old, after a pass3.1% next fail2019–20241067
Noise, emissions and leaks, 12 to 14 years old, after a pass2.0% next fail2019–20241067
Steering, 12 to 14 years old, after a pass1.5% next fail2019–20241067
Seat belts and supplementary restraint systems, 12 to 14 years old, after a pass1.2% next fail2019–20241067
Identification of the vehicle, 12 to 14 years old, after a pass0.6% next fail2019–20241067
Lamps, reflectors and electrical equipment, 12 to 14 years old, after an advisory15.9% next fail2019–20241063
Brakes, 12 to 14 years old, after an advisory9.3% next fail2019–20241063
Body, chassis, structure, 12 to 14 years old, after an advisory8.1% next fail2019–20241063
Visibility, 12 to 14 years old, after an advisory5.8% next fail2019–20241063
Suspension, 12 to 14 years old, after an advisory5.5% next fail2019–20241063
Tyres, 12 to 14 years old, after an advisory5.2% next fail2019–20241063
Noise, emissions and leaks, 12 to 14 years old, after an advisory3.7% next fail2019–20241063
Steering, 12 to 14 years old, after an advisory2.2% next fail2019–20241063
Seat belts and supplementary restraint systems, 12 to 14 years old, after an advisory1.1% next fail2019–20241063
Road wheels, 12 to 14 years old, after an advisory0.6% next fail2019–20241063
Lamps, reflectors and electrical equipment, 12 to 14 years old, after a fail16.4% next fail2019–2024856
Brakes, 12 to 14 years old, after a fail12.0% next fail2019–2024856
Body, chassis, structure, 12 to 14 years old, after a fail7.8% next fail2019–2024856
Suspension, 12 to 14 years old, after a fail7.0% next fail2019–2024856
Visibility, 12 to 14 years old, after a fail6.3% next fail2019–2024856
Tyres, 12 to 14 years old, after a fail5.3% next fail2019–2024856
Noise, emissions and leaks, 12 to 14 years old, after a fail4.3% next fail2019–2024856
Steering, 12 to 14 years old, after a fail2.7% next fail2019–2024856
Seat belts and supplementary restraint systems, 12 to 14 years old, after a fail2.2% next fail2019–2024856
Identification of the vehicle, 12 to 14 years old, after a fail0.6% next fail2019–2024856
Lamps, reflectors and electrical equipment, 15 to 19 years old, after a pass (rough estimate: 329 cars)11.6% next fail2019–2024329
Brakes, 15 to 19 years old, after a pass (rough estimate: 329 cars)7.0% next fail2019–2024329
Suspension, 15 to 19 years old, after a pass (rough estimate: 329 cars)6.4% next fail2019–2024329
Visibility, 15 to 19 years old, after a pass (rough estimate: 329 cars)6.1% next fail2019–2024329
Body, chassis, structure, 15 to 19 years old, after a pass (rough estimate: 329 cars)4.6% next fail2019–2024329
Tyres, 15 to 19 years old, after a pass (rough estimate: 329 cars)3.6% next fail2019–2024329
Noise, emissions and leaks, 15 to 19 years old, after a pass (rough estimate: 329 cars)2.7% next fail2019–2024329
Steering, 15 to 19 years old, after a pass (rough estimate: 329 cars)1.8% next fail2019–2024329
Lamps, reflectors and electrical equipment, 15 to 19 years old, after an advisory (rough estimate: 449 cars)15.1% next fail2019–2024449
Brakes, 15 to 19 years old, after an advisory (rough estimate: 449 cars)10.7% next fail2019–2024449
Body, chassis, structure, 15 to 19 years old, after an advisory (rough estimate: 449 cars)9.3% next fail2019–2024449
Visibility, 15 to 19 years old, after an advisory (rough estimate: 449 cars)5.8% next fail2019–2024449
Tyres, 15 to 19 years old, after an advisory (rough estimate: 449 cars)5.1% next fail2019–2024449
Suspension, 15 to 19 years old, after an advisory (rough estimate: 449 cars)4.9% next fail2019–2024449
Steering, 15 to 19 years old, after an advisory (rough estimate: 449 cars)4.2% next fail2019–2024449
Noise, emissions and leaks, 15 to 19 years old, after an advisory (rough estimate: 449 cars)3.1% next fail2019–2024449
Road wheels, 15 to 19 years old, after an advisory (rough estimate: 449 cars)1.1% next fail2019–2024449
Lamps, reflectors and electrical equipment, 15 to 19 years old, after a fail (rough estimate: 315 cars)22.2% next fail2019–2024315
Brakes, 15 to 19 years old, after a fail (rough estimate: 315 cars)13.7% next fail2019–2024315
Body, chassis, structure, 15 to 19 years old, after a fail (rough estimate: 315 cars)13.0% next fail2019–2024315
Tyres, 15 to 19 years old, after a fail (rough estimate: 315 cars)8.9% next fail2019–2024315
Noise, emissions and leaks, 15 to 19 years old, after a fail (rough estimate: 315 cars)8.6% next fail2019–2024315
Suspension, 15 to 19 years old, after a fail (rough estimate: 315 cars)8.3% next fail2019–2024315
Visibility, 15 to 19 years old, after a fail (rough estimate: 315 cars)5.1% next fail2019–2024315
Steering, 15 to 19 years old, after a fail (rough estimate: 315 cars)4.8% next fail2019–2024315
Road wheels, 15 to 19 years old, after a fail (rough estimate: 315 cars)2.5% next fail2019–2024315
Seat belts and supplementary restraint systems, 15 to 19 years old, after a fail (rough estimate: 315 cars)1.6% next fail2019–2024315

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

How often does a Mercedes-Benz GL get a dangerous MOT defect?

The Mercedes-Benz GL gets a dangerous defect about as often as the UK average: 10.3 per 100 first tests against 11.2 across the UK. In the same tests, 27.1 major and 13.1 minor defects were recorded per 100 tests (one test can record several).

bullet · Mercedes-Benz GL · Dangerous defects · 10.3 vs 11.2 · 2019–2024
Dangerous defects: 10.3 vs 11.2. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Dangerous defects10.3per 10011.22019–202420497

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 20,497 (initial tests) · Method: one initial test per test_id; severity not recorded for some 2018–2021 tests · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Will my Mercedes-Benz GL still pass its MOT in a few years?

First-time MOT failures for the Mercedes-Benz GL go from 11.5% at age 5 (rough estimate: 52 tests, 95% interval 5.4–23.0%) to 27.4% at age 18 (rough estimate: 95 tests, 95% interval 19.4–37.1%), against 43.9% for all cars aged 18 (rough estimate: 95 tests, 95% interval 19.4–37.1%) (2024, n = 3,626).

line · Mercedes-Benz GL · Age 5 (rough estimate: 52 tests, 95% interval 5.4–23.0%) · 11.5 vs 15.1 · 2024
Age 5 (rough estim: 11.5. Age 18 (rough esti: 27.4. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Age 5 (rough estimate: 52 tests, 95% interval 5.4–23.0%)11.5% failed first time15.1202452
Age 8 (rough estimate: 225 tests, 95% interval 13.7–23.8%)18.2% failed first time23.32024225
Age 917.3% failed first time26.52024629
Age 1016.9% failed first time30.12024538
Age 1118.5% failed first time33.22024518
Age 12 (rough estimate: 96 tests, 95% interval 9.7–24.2%)15.6% failed first time35.7202496
Age 13 (rough estimate: 278 tests, 95% interval 15.8–25.3%)20.1% failed first time38.22024278
Age 14 (rough estimate: 203 tests, 95% interval 15.7–26.8%)20.7% failed first time40.42024203
Full table
Further values · 2024
MeasureValueUnitCompared withYearsTests
Age 15 (rough estimate: 186 tests, 95% interval 24.5–37.6%)30.6% failed first time41.62024186
Age 16 (rough estimate: 233 tests, 95% interval 24.9–36.7%)30.5% failed first time43.12024233
Age 17 (rough estimate: 452 tests, 95% interval 24.4–32.6%)28.3% failed first time43.12024452
Age 18 (rough estimate: 95 tests, 95% interval 19.4–37.1%)27.4% failed first time43.9202495

Source: DVSA MOT bulk data · Window: 2024 · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

How does the Mercedes-Benz GL compare with cars of its own age and size?

At 3 of 15 ages shown, Mercedes-Benz GLs fail first time more often than comparable models of the same size class; the biggest difference is at age 17, where they fail less often: 27.7% against 37.5% (2024, n = 578).

line · Mercedes-Benz GL · Age 3 · 11 vs 10.8 · 2024
Age 3: 11. Age 17: 27.7. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Age 311% fail10.82024291
Age 415.8% fail12.32024945
Age 515.8% fail14.220241492
Age 615.8% fail16.120242016
Age 717.5% fail18.320242022
Age 818.1% fail20.520242130
Age 917.8% fail23.120241998
Age 1018.2% fail25.620241582
Full table
Further values · 2024
MeasureValueUnitCompared withYearsTests
Age 1122.8% fail28.220241300
Age 1224.3% fail30.620241086
Age 1326.2% fail32.620241246
Age 1426.9% fail34.620241430
Age 1529.4% fail36.020241269
Age 1627.5% fail37.12024913
Age 1727.7% fail37.52024578

Source: DVSA MOT bulk data · Window: 2024 · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Which Mercedes-Benz GL years should I avoid?

The Mercedes-Benz GL build year that fails most for its age is 2011: index 123.9 (95% CI 106.5–141.3) against the model's own age norm of 100 (2019–2024, n = 883).

bar · Mercedes-Benz GL · Build year 2006 (rough estimate: 487 tests, 95% interval 77.8–110.2) · 94 vs 100 = normal · 2019–2024
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Build year 2006 (rough estimate: 487 tests, 95% interval 77.8–110.2)94index vs own age100 = normal2019–2024487
Build year 2007 (rough estimate: 2,270 tests, 95% interval 94.5–110.1)102.3index vs own age100 = normal2019–20242270
Build year 2008 (rough estimate: 945 tests, 95% interval 83.4–107.1)95.3index vs own age100 = normal2019–2024945
Build year 2009 (rough estimate: 480 tests, 95% interval 92.8–128.8)110.8index vs own age100 = normal2019–2024480
Build year 2010 (rough estimate: 569 tests, 95% interval 90.3–126.7)108.5index vs own age100 = normal2019–2024569
Build year 2011 (worse for its age) (rough estimate: 883 tests, 95% interval 106.5–141.3)123.9index vs own age100 = normal2019–2024883
Build year 2012 (rough estimate: 447 tests, 95% interval 92.5–140.0)116.2index vs own age100 = normal2019–2024447
Build year 2013 (rough estimate: 3,109 tests, 95% interval 97.2–114.6)105.9index vs own age100 = normal2019–20243109
Full table
Further values · 2019–2024
MeasureValueUnitCompared withYearsTests
Build year 2014 (rough estimate: 3,296 tests, 95% interval 91.1–107.7)99.4index vs own age100 = normal2019–20243296
Build year 2015 (rough estimate: 3,800 tests, 95% interval 88.3–103.5)95.9index vs own age100 = normal2019–20243800
Build year 2016 (rough estimate: 1,138 tests, 95% interval 89.0–118.2)103.6index vs own age100 = normal2019–20241138

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

How much does it cost to fix a Mercedes-Benz GL MOT fail?

Expected repair cost per Mercedes-Benz GL MOT: about £44 (up to about £83 if more expensive parts are needed), from the chance of failing each item and its most common UK repair price (catalogue estimate, n = 3,626).

Computed, not measured.

bar · Mercedes-Benz GL · Expected repair bill · 43.7 vs modal price catalogue · price catalogue
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (price catalogue)
MeasureValueUnitCompared withYearsTests
Expected repair bill43.7GBP estimatemodal price catalogueprice catalogue3626
Estimated range lower43.7GBP estimatemodal price catalogueprice catalogue3626
Estimated range upper83.0GBP estimatemodal price catalogueprice catalogue3626
Lamps, reflectors and electrical equipment: Battery replacement (standard 12V lead-acid)15.4GBP expected contribution140price catalogue3626
Brakes: Front brake pads (parts + labour, typical hatchback)13.1GBP expected contribution150price catalogue3626
Tyres: Tyre (single mid-range 16" fitted)8.9GBP expected contribution90price catalogue3626
Suspension: Suspension coil spring (single corner)6.3GBP expected contribution180price catalogue3626

Source: DVSA MOT bulk data · Window: price catalogue · n = 3,626 (initial tests) · Method: computed estimate, not measured · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Is the Mercedes-Benz GL more reliable than similar cars?

Of 8 similar models, 4 fail less often for their age than the Mercedes-Benz GL and 4 as often or more. The Mercedes-Benz GL has an MOT Risk Index of 61.5, where 100 = normal for its age (2024, n = 3,626).

bar · Mercedes-Benz GL · Mercedes-Benz GL (this model) · 61.5 vs 100 = normal · 2024
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Mercedes-Benz GL (this model)61.5index100 = normal20243626
Mercedes-Benz CL54.8index61.520243060
BMW M260.9index61.520243719
Audi Q862.4index61.520244285
Lexus LS55.8index61.520243292
Nissan 350Z66.5index61.520245215
Mercedes-Benz GLS78.1index61.520242759
Mercedes-Benz S-Class59.4index61.5202425541
Full table
Further values · 2024
MeasureValueUnitCompared withYearsTests
Alfa Romeo Stelvio73.7index61.520243854

Source: DVSA MOT bulk data · Window: 2024 · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

How many miles does a Mercedes-Benz GL normally do?

At age 10, the median Mercedes-Benz GL had covered 86,721 miles by its MOT; the middle half ranged from 67,688 to 107,713 miles (2024, n = 538).

line · Mercedes-Benz GL · Age 5 median (rough estimate) · 33641 vs baseline · 2024
Age 5 median (roug: 33641. Age 18 P75 (rough : 147242. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Age 5 median (rough estimate)33641miles202452
Age 8 median (rough estimate)72861miles2024225
Age 8 P25 (rough estimate)54776miles2024225
Age 8 P75 (rough estimate)92431miles2024225
Age 9 median77951miles2024629
Age 9 P2561081miles2024629
Age 9 P7596010miles2024629
Age 10 median86721miles2024538
Full table
Further values · 2024
MeasureValueUnitCompared withYearsTests
Age 10 P2567688miles2024538
Age 10 P75107713miles2024538
Age 11 median97258miles2024518
Age 11 P2580389miles2024518
Age 11 P75120570miles2024518
Age 12 median (rough estimate)103275miles202496
Age 12 P25 (rough estimate)83344miles202496
Age 12 P75 (rough estimate)122052miles202496
Age 13 median (rough estimate)111515miles2024278
Age 13 P25 (rough estimate)93688miles2024278
Age 13 P75 (rough estimate)137694miles2024278
Age 14 median (rough estimate)118949miles2024203
Age 14 P25 (rough estimate)96490miles2024203
Age 14 P75 (rough estimate)145139miles2024203
Age 15 median (rough estimate)119293miles2024186
Age 15 P25 (rough estimate)100846miles2024186
Age 15 P75 (rough estimate)144260miles2024186
Age 16 median (rough estimate)122014miles2024233
Age 16 P25 (rough estimate)102807miles2024233
Age 16 P75 (rough estimate)151758miles2024233
Age 17 median (rough estimate)132239miles2024452
Age 17 P25 (rough estimate)107480miles2024452
Age 17 P75 (rough estimate)153629miles2024452
Age 18 median (rough estimate)129037miles202495
Age 18 P25 (rough estimate)105508miles202495
Age 18 P75 (rough estimate)147242miles202495

Source: DVSA MOT bulk data · Window: 2024 · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Does high mileage mean more Mercedes-Benz GL MOT failures at the same age?

At ages 10–14, 15.0% of Mercedes-Benz GLs with 40,000 to 70,000 miles failed first time, against 21.5% of those with over 140,000 miles (2024, n = 459). No clear mileage gap inside this age group, among cars still being tested.

bar · Mercedes-Benz GL · Age 6–9, <40k miles (rough estimate: 76 tests, 95% interval 7.3–22.6%) · 13.2 vs baseline · 2024
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Age 6–9, <40k miles (rough estimate: 76 tests, 95% interval 7.3–22.6%)13.2% failed first time202476
Age 6–9, 40-70k miles (rough estimate: 309 tests, 95% interval 12.8–21.1%)16.5% failed first time2024309
Age 6–9, 70-100k miles (rough estimate: 332 tests, 95% interval 15.7–24.2%)19.6% failed first time2024332
Age 6–9, 100-140k miles (rough estimate: 143 tests, 95% interval 11.5–23.8%)16.8% failed first time2024143
Age 10–14, 40-70k miles (rough estimate: 226 tests, 95% interval 11–20.3%)15% failed first time2024226
Age 10–14, 70-100k miles18.3% failed first time2024569
Age 10–14, 100-140k miles19% failed first time2024557
Age 10–14, 140k+ miles (rough estimate: 233 tests, 95% interval 16.7–27.2%)21.5% failed first time2024233
Full table
Further values · 2024
MeasureValueUnitCompared withYearsTests
Age 15+, 70-100k miles (rough estimate: 156 tests, 95% interval 19.4–33%)25.6% failed first time2024156
Age 15+, 100-140k miles (rough estimate: 409 tests, 95% interval 23.1–31.6%)27.1% failed first time2024409
Age 15+, 140k+ miles (rough estimate: 350 tests, 95% interval 27.9–37.6%)32.6% failed first time2024350

Source: DVSA MOT bulk data · Window: 2024 · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

How many miles does a Mercedes-Benz GL last?

35.3% of Mercedes-Benz GLs tested had reached 100,000 miles, and 8.2% had reached 150,000 (2024, n = 7,227).

line · Mercedes-Benz GL · 100,000 miles · 35.3 vs baseline · 2024
100,000 miles: 35.3. 200,000 miles (rou: 1.0. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
100,000 miles35.3% of tested cars20247227
150,000 miles8.2% of tested cars20241669
200,000 miles (rough estimate: 209 tests, 95% interval 0.9–1.2%)1.0% of tested cars2024209

Source: DVSA MOT bulk data · Window: 2024 · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Is the Mercedes-Benz GL driven more or less than average, and does that change the picture?

Matched on annual mileage as well as age, the Mercedes-Benz GL index is 62.6, against 66.6 on age alone (2019–2024, n = 3,626).

slope · Mercedes-Benz GL · Age and mileage adjusted index · 62.6 vs 66.6 · 2019–2024
Age and mileage adjusted index: 66.6 vs 62.6. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Age and mileage adjusted index62.6index66.62019–20243626

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Which Mercedes-Benz GL fuel fails its MOT less?

All Mercedes-Benz GLs tested were diesel: 21.6% failed first time (2024, n = 3,211).

bar · Mercedes-Benz GL · Diesel · 21.6 vs other fuels · 2024
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Diesel21.6% fail first timeother fuels20243211

Source: DVSA MOT bulk data · Window: 2024 · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Which Mercedes-Benz GL engine is best?

No Mercedes-Benz GL engine band clearly fails less or more for its age: the capacity bands are within 5 index points of each other or their 95% intervals overlap (2024, n = 3,626).

bar · Mercedes-Benz GL · Petrol 1.5–1.8 litre (rough estimate: 146 tests, 95% interval 45.5–113.1) · 72.7 vs 100 = model average · 2024
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Petrol 1.5–1.8 litre (rough estimate: 146 tests, 95% interval 45.5–113.1)72.7index vs model norm100 = model average2024146
Petrol over 2.0 litre (rough estimate: 1,855 tests, 95% interval 75.6–93.1)84index vs model norm100 = model average20241855
Diesel over 2.0 litre101.7index vs model norm100 = model average202418340

Source: DVSA MOT bulk data · Window: 2024 · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Where in Britain does the Mercedes-Benz GL fail its MOT most?

Mercedes-Benz GL fails first-time MOTs most in Bournemouth (BH): 32.6% against 20.6% across Britain for this model, both 2019–2024 (2024, n = 224).

First-time failure rates for the Mercedes-Benz GL range from 15.5% to 22.1% by area, before allowing for age: a narrower spread than for the typical model.

bar · Mercedes-Benz GL · Bournemouth (BH) (rough estimate: 224 tests, 95% interval 26.8–39.0%) · 32.6 vs 20.8 · 2024
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Bournemouth (BH) (rough estimate: 224 tests, 95% interval 26.8–39.0%)32.6% fail first time20.82024224
Ipswich (IP) (rough estimate: 184 tests, 95% interval 23.7–36.9%)29.9% fail first time20.82024184
Gloucester (GL) (rough estimate: 176 tests, 95% interval 22.3–35.5%)28.4% fail first time20.82024176
Bradford (BD) (rough estimate: 166 tests, 95% interval 7.0–16.5%)10.8% fail first time20.82024166
Twickenham (TW) (rough estimate: 331 tests, 95% interval 10.8–18.4%)14.2% fail first time20.82024331
Ilford (IG) (rough estimate: 289 tests, 95% interval 11.2–19.4%)14.9% fail first time20.82024289
Guildford (GU) (rough estimate: 414 tests, 95% interval 23.9–32.5%)28.0% fail first time20.82024414
Stockport (SK) (rough estimate: 176 tests, 95% interval 21.7–34.9%)27.8% fail first time20.82024176
Full table
Further values · 2024
MeasureValueUnitCompared withYearsTests
Swansea (SA) (rough estimate: 115 tests, 95% interval 20.5–36.6%)27.8% fail first time20.82024115
Bristol (BS) (rough estimate: 275 tests, 95% interval 22.7–33.2%)27.6% fail first time20.82024275
York (YO) (rough estimate: 144 tests, 95% interval 20.5–34.9%)27.1% fail first time20.82024144
Newcastle (NE) (rough estimate: 214 tests, 95% interval 20.7–32.4%)26.2% fail first time20.82024214
Nottingham (NG) (rough estimate: 307 tests, 95% interval 21.5–31.2%)26.1% fail first time20.82024307
Cleveland (TS) (rough estimate: 129 tests, 95% interval 18.8–33.7%)25.6% fail first time20.82024129
Warrington (WA) (rough estimate: 162 tests, 95% interval 19.2–32.5%)25.3% fail first time20.82024162
Northampton (NN) (rough estimate: 253 tests, 95% interval 20.3–31.0%)25.3% fail first time20.82024253
Hemel Hempstead (HP) (rough estimate: 341 tests, 95% interval 20.9–30.1%)25.2% fail first time20.82024341
Southampton (SO) (rough estimate: 207 tests, 95% interval 19.7–31.4%)25.1% fail first time20.82024207
Cardiff (CF) (rough estimate: 196 tests, 95% interval 19.5–31.5%)25% fail first time20.82024196
Portsmouth (PO) (rough estimate: 238 tests, 95% interval 19.4–30.2%)24.4% fail first time20.82024238
Tonbridge (TN) (rough estimate: 346 tests, 95% interval 19.8–28.8%)24.0% fail first time20.82024346
Brighton (BN) (rough estimate: 213 tests, 95% interval 18.7–30.1%)23.9% fail first time20.82024213
Leeds (LS) (rough estimate: 138 tests, 95% interval 17.6–31.7%)23.9% fail first time20.82024138
Colchester (CO) (rough estimate: 140 tests, 95% interval 17.3–31.2%)23.6% fail first time20.82024140
Derby (DE) (rough estimate: 217 tests, 95% interval 18.3–29.6%)23.5% fail first time20.82024217
Medway (ME) (rough estimate: 230 tests, 95% interval 18.5–29.4%)23.5% fail first time20.82024230
London SE (SE) (rough estimate: 308 tests, 95% interval 19.0–28.4%)23.4% fail first time20.82024308
Redhill (RH) (rough estimate: 184 tests, 95% interval 17.4–29.4%)22.8% fail first time20.82024184
Oxford (OX) (rough estimate: 251 tests, 95% interval 18.0–28.3%)22.7% fail first time20.82024251
Exeter (EX) (rough estimate: 119 tests, 95% interval 16.1–31.0%)22.7% fail first time20.82024119
Reading (RG)22.1% fail first time20.82024561
Manchester (M) (rough estimate: 363 tests, 95% interval 17.8–26.3%)21.8% fail first time20.82024363
London SW (SW) (rough estimate: 437 tests, 95% interval 17.9–25.6%)21.5% fail first time20.82024437
Edinburgh (EH) (rough estimate: 204 tests, 95% interval 16.0–27.2%)21.1% fail first time20.82024204
Milton Keynes (MK) (rough estimate: 282 tests, 95% interval 16.6–26.0%)20.9% fail first time20.82024282
Chelmsford (CM) (rough estimate: 316 tests, 95% interval 16.8–25.7%)20.9% fail first time20.82024316
Glasgow (G) (rough estimate: 292 tests, 95% interval 16.6–25.9%)20.9% fail first time20.82024292
London W (W) (rough estimate: 230 tests, 95% interval 16.1–26.6%)20.9% fail first time20.82024230
St Albans (AL) (rough estimate: 115 tests, 95% interval 14.4–29.2%)20.9% fail first time20.82024115
Aberdeen (AB) (rough estimate: 139 tests, 95% interval 14.9–28.4%)20.9% fail first time20.82024139
Swindon (SN) (rough estimate: 120 tests, 95% interval 14.5–28.9%)20.8% fail first time20.82024120
Croydon (CR) (rough estimate: 299 tests, 95% interval 15.9–25.0%)20.1% fail first time20.82024299
Canterbury (CT) (rough estimate: 147 tests, 95% interval 14.1–26.9%)19.7% fail first time20.82024147
Doncaster (DN) (rough estimate: 237 tests, 95% interval 14.9–24.9%)19.4% fail first time20.82024237
Sheffield (S) (rough estimate: 355 tests, 95% interval 15.4–23.6%)19.1% fail first time20.82024355
Dartford (DA) (rough estimate: 293 tests, 95% interval 15.0–24.0%)19.1% fail first time20.82024293
Preston (PR) (rough estimate: 110 tests, 95% interval 12.8–27.4%)19.1% fail first time20.82024110
Coventry (CV) (rough estimate: 304 tests, 95% interval 15.1–23.9%)19.1% fail first time20.82024304
Stoke-on-Trent (ST) (rough estimate: 150 tests, 95% interval 13.2–25.7%)18.7% fail first time20.82024150
Watford (WD) (rough estimate: 158 tests, 95% interval 13.1–25.1%)18.4% fail first time20.82024158
Leicester (LE) (rough estimate: 307 tests, 95% interval 14.3–22.9%)18.2% fail first time20.82024307
Slough (SL) (rough estimate: 302 tests, 95% interval 14.3–23.0%)18.2% fail first time20.82024302
Romford (RM) (rough estimate: 358 tests, 95% interval 14.3–22.2%)17.9% fail first time20.82024358
Harrow (HA) (rough estimate: 376 tests, 95% interval 14.3–22.0%)17.8% fail first time20.82024376
Norwich (NR) (rough estimate: 135 tests, 95% interval 12.2–25.1%)17.8% fail first time20.82024135
Luton (LU) (rough estimate: 166 tests, 95% interval 12.4–24.0%)17.5% fail first time20.82024166
Wolverhampton (WV) (rough estimate: 110 tests, 95% interval 11.3–25.4%)17.3% fail first time20.82024110
Kingston upon Thames (KT) (rough estimate: 459 tests, 95% interval 13.8–20.7%)17.0% fail first time20.82024459
Peterborough (PE) (rough estimate: 319 tests, 95% interval 13.2–21.4%)16.9% fail first time20.82024319
Southend-on-Sea (SS) (rough estimate: 222 tests, 95% interval 12.3–22.1%)16.7% fail first time20.82024222
Chester (CH) (rough estimate: 199 tests, 95% interval 12.1–22.4%)16.6% fail first time20.82024199
Liverpool (L) (rough estimate: 190 tests, 95% interval 11.7–22.2%)16.3% fail first time20.82024190
Stevenage (SG) (rough estimate: 172 tests, 95% interval 11.5–22.5%)16.3% fail first time20.82024172
London NW (NW)16.0% fail first time20.82024526
Wakefield (WF) (rough estimate: 113 tests, 95% interval 10.3–23.8%)15.9% fail first time20.82024113
Uxbridge (UB) (rough estimate: 367 tests, 95% interval 12.4–19.9%)15.8% fail first time20.82024367
Enfield (EN) (rough estimate: 191 tests, 95% interval 11.2–21.5%)15.7% fail first time20.82024191
London E (E) (rough estimate: 364 tests, 95% interval 12.3–19.7%)15.7% fail first time20.82024364
Blackburn (BB) (rough estimate: 141 tests, 95% interval 10.5–22.5%)15.6% fail first time20.82024141
Birmingham (B)15.5% fail first time20.82024736
London N (N) (rough estimate: 298 tests, 95% interval 11.8–20.0%)15.4% fail first time20.82024298
Bolton (BL) (rough estimate: 244 tests, 95% interval 11.2–20.2%)15.2% fail first time20.82024244

Source: DVSA MOT bulk data · Window: 2024 · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Does a Mercedes-Benz GL rust more than average?

Allowing for age, Mercedes-Benz GL MOTs record corrosion failures at 0.7 times the national rate: 0.57% of tests against 0.77% (2024 + geographic layers, n = 3,592).

Computed, not measured.

slope · Mercedes-Benz GL · Salt belt susceptibility · 0.7 vs 1 · 2024 + geographic layers
Salt belt susceptibility: 1 vs 0.7. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2024 + geographic layers)
MeasureValueUnitCompared withYearsTests
Salt belt susceptibility0.7ratio estimate12024 + geographic layers3592

Source: DVSA MOT bulk data · Window: 2024 + geographic layers · n = 3,626 (initial tests) · Method: computed estimate, not measured · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Is a Mercedes-Benz GL ULEZ compliant?

An estimated 25.5% of Mercedes-Benz GLs tested are likely ULEZ-compliant, judged from fuel type and first-use date; check a specific car with TfL's vehicle checker (2024).

Computed, not measured.

stacked · Mercedes-Benz GL · Likely compliant · 25.5 vs baseline · 2024
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Likely compliant25.5% estimate20243626

Source: DVSA MOT bulk data · Window: 2024 · n = 3,626 (initial tests) · Method: computed estimate, not measured · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

What do six years of MOTs show about owning a Mercedes-Benz GL?

Of failed Mercedes-Benz GL MOTs, 25.4% were retested the same day and a further 68.6% within 10 days; the median failed car passed its retest after 1 day (2019–2024, n = 2,853).

bar · Mercedes-Benz GL · Same-day retest · 25.4 vs failed initial tests · 2019–2024
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Same-day retest25.4%failed initial tests2019–20242853
Retest within 10 days68.6%failed initial tests2019–20242853
Clean MOT streak40.3%observed chains2019–20243868
Repeat advisory23.1%observed chains2019–20243868
Decreasing odometer2.0% mileage anomalyobserved chains2019–20244178

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Is low mileage better for a Mercedes-Benz GL?

Mercedes-Benz GLs aged 5 to 14 doing under 5,000 miles a year failed first time in 14.2% of tests, against 20.5% for those doing 8,000 to 12,000 miles (2019–2024, n = 1,306).

bullet · Mercedes-Benz GL · Low-use first-time failure · 14.2 vs 20.5 · 2019–2024
Low-use first-time failure: 14.2 vs 20.5. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Low-use first-time failure14.2%20.52019–20241306
Low-use gap-6.4percentage points8–12k miles2019–20241306

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

How many years is a Mercedes-Benz GL likely to last?

Mercedes-Benz GLs tend to last: at ten years old the typical one has about 5.8 more years of MOTs ahead, more than the median model. This is a forecast from the survival curve and may not come true.

Computed, not measured.

Forecast, not a prediction for a particular car.

bar · Mercedes-Benz GL · Age 5 · 10.8 vs baseline · survival forecast
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (survival forecast)
MeasureValueUnitCompared withYearsTests
Age 510.8years forecastsurvival forecast0
Age 87.8years forecastsurvival forecast0
Age 105.8years forecastsurvival forecast0
Age 125.5years forecastsurvival forecast0
Age 15 (at least; observed only until age 17)1.7years forecastsurvival forecast0

Source: DVSA MOT bulk data · Window: survival forecast · n = 3,626 (initial tests) · Method: computed estimate, not measured · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Which Mercedes-Benz GLs are still on the road?

In 2024, for every 100 Mercedes-Benz GLs tested at ages 4 to 6, about 39 were tested at age 17 (2024, n = 578).

line · Mercedes-Benz GL · Age 3 · 19.6 vs baseline · 2024
Age 3: 19.6. Age 18 (rough esti: 6.5. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Age 319.6% of age 4–6 baseline2024291
Age 463.7% of age 4–6 baseline2024945
Age 5 (at least as many as at ages 4–6)100% of age 4–6 baseline20241492
Age 6 (at least as many as at ages 4–6)100% of age 4–6 baseline20242016
Age 7 (at least as many as at ages 4–6)100% of age 4–6 baseline20242022
Age 8 (at least as many as at ages 4–6)100% of age 4–6 baseline20242130
Age 9 (at least as many as at ages 4–6)100% of age 4–6 baseline20241998
Age 10 (at least as many as at ages 4–6)100% of age 4–6 baseline20241582
Full table
Further values · 2024
MeasureValueUnitCompared withYearsTests
Age 1187.6% of age 4–6 baseline20241300
Age 1273.2% of age 4–6 baseline20241086
Age 1383.9% of age 4–6 baseline20241246
Age 1496.3% of age 4–6 baseline20241430
Age 1585.5% of age 4–6 baseline20241269
Age 1661.5% of age 4–6 baseline2024913
Age 1738.9% of age 4–6 baseline2024578
Age 18 (rough estimate: 96 tests, 95% interval 19.2–36.7%)6.5% of age 4–6 baseline202496

Source: DVSA MOT bulk data · Window: 2024 · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

If a Mercedes-Benz GL fails, does it fail again?

24.5% of Mercedes-Benz GLs that failed an MOT failed the next one too, against 17.8% after a pass (2019–2024, n = 1,044). The failure most likely to come back is ‘lamps, reflectors and electrical equipment’: 28.8% of those fails recurred at the next MOT.

bullet · Mercedes-Benz GL · Repeat after fail · 24.5 vs 17.8 · 2019–2024
Repeat after fail: 24.5 vs 17.8. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Repeat after fail24.5%17.82019–20241044

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Which Mercedes-Benz GL faults come together?

On Mercedes-Benz GLs, ‘noise, emissions and leaks’ and seat belts and supplementary restraint systems failures turn up together 7.5 times as often as chance would predict (2024, n = 33).

Mercedes-Benz GL: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Noise, emissions and leaks + Seat belts and supplementary restraint systems (rough estimate: 33 tests, 95% interval 5.2–10.5)7.5liftexpected joint rate202433
Brakes + Steering (rough estimate: 53 tests, 95% interval 4.8–8.5)6.5liftexpected joint rate202453
Noise, emissions and leaks + Suspension (rough estimate: 74 tests, 95% interval 4.7–7.5)6.0liftexpected joint rate202474
Brakes + Suspension (rough estimate: 153 tests, 95% interval 4.8–6.7)5.7liftexpected joint rate2024153
Noise, emissions and leaks + Steering (rough estimate: 21 tests, 95% interval 3.4–8.5)5.5liftexpected joint rate202421
Seat belts and supplementary restraint systems + Suspension (rough estimate: 28 tests, 95% interval 3.6–7.8)5.4liftexpected joint rate202428
Lamps, reflectors and electrical equipment + Steering (rough estimate: 64 tests, 95% interval 4.1–6.8)5.3liftexpected joint rate202464
Lamps, reflectors and electrical equipment + Seat belts and supplementary restraint systems (rough estimate: 73 tests, 95% interval 4.1–6.5)5.2liftexpected joint rate202473
Full table
Further values · 2024
MeasureValueUnitCompared withYearsTests
Brakes + Noise, emissions and leaks (rough estimate: 110 tests, 95% interval 4.0–5.8)4.8liftexpected joint rate2024110
Lamps, reflectors and electrical equipment + Suspension (rough estimate: 183 tests, 95% interval 4.0–5.3)4.6liftexpected joint rate2024183
Lamps, reflectors and electrical equipment + Noise, emissions and leaks (rough estimate: 149 tests, 95% interval 3.8–5.2)4.4liftexpected joint rate2024149
Brakes + Seat belts and supplementary restraint systems (rough estimate: 42 tests, 95% interval 3.2–6.0)4.4liftexpected joint rate202442
Brakes + Road Wheels (rough estimate: 22 tests, 95% interval 2.8–6.7)4.4liftexpected joint rate202422
Lamps, reflectors and electrical equipment + Road Wheels (rough estimate: 31 tests, 95% interval 2.9–6.0)4.2liftexpected joint rate202431
Brakes + Lamps, reflectors and electrical equipment (rough estimate: 299 tests, 95% interval 3.7–4.6)4.1liftexpected joint rate2024299
Body, chassis, structure + Road Wheels (rough estimate: 22 tests, 95% interval 2.5–6.2)4.1liftexpected joint rate202422
Body, chassis, structure + Seat belts and supplementary restraint systems (rough estimate: 38 tests, 95% interval 2.6–5.1)3.7liftexpected joint rate202438
Identification of the vehicle + Tyres (rough estimate: 27 tests, 95% interval 2.3–5.0)3.5liftexpected joint rate202427
Brakes + Identification of the vehicle (rough estimate: 21 tests, 95% interval 2.1–5.3)3.5liftexpected joint rate202421
Steering + Visibility (rough estimate: 26 tests, 95% interval 2.2–4.9)3.4liftexpected joint rate202426
Seat belts and supplementary restraint systems + Tyres (rough estimate: 40 tests, 95% interval 2.3–4.5)3.3liftexpected joint rate202440
Identification of the vehicle + Lamps, reflectors and electrical equipment (rough estimate: 29 tests, 95% interval 2.2–4.6)3.2liftexpected joint rate202429
Noise, emissions and leaks + Tyres (rough estimate: 92 tests, 95% interval 2.5–3.9)3.1liftexpected joint rate202492
Lamps, reflectors and electrical equipment + Visibility (rough estimate: 212 tests, 95% interval 2.7–3.5)3.1liftexpected joint rate2024212
Body, chassis, structure + Identification of the vehicle (rough estimate: 20 tests, 95% interval 1.9–4.7)3.0liftexpected joint rate202420
Seat belts and supplementary restraint systems + Visibility (rough estimate: 27 tests, 95% interval 2.0–4.3)3.0liftexpected joint rate202427
Suspension + Tyres (rough estimate: 99 tests, 95% interval 2.4–3.5)2.9liftexpected joint rate202499
Body, chassis, structure + Noise, emissions and leaks (rough estimate: 69 tests, 95% interval 2.2–3.5)2.8liftexpected joint rate202469
Body, chassis, structure + Lamps, reflectors and electrical equipment (rough estimate: 215 tests, 95% interval 2.4–3.1)2.7liftexpected joint rate2024215
Suspension + Visibility (rough estimate: 69 tests, 95% interval 2.1–3.4)2.7liftexpected joint rate202469
Noise, emissions and leaks + Visibility (rough estimate: 57 tests, 95% interval 2.0–3.4)2.6liftexpected joint rate202457
Body, chassis, structure + Steering (rough estimate: 23 tests, 95% interval 1.6–3.9)2.6liftexpected joint rate202423
Brakes + Visibility (rough estimate: 115 tests, 95% interval 2.0–3.0)2.5liftexpected joint rate2024115
Brakes + Tyres (rough estimate: 154 tests, 95% interval 2.1–2.9)2.4liftexpected joint rate2024154
Body, chassis, structure + Suspension (rough estimate: 70 tests, 95% interval 1.9–3.1)2.4liftexpected joint rate202470
Body, chassis, structure + Brakes (rough estimate: 127 tests, 95% interval 2.0–2.8)2.4liftexpected joint rate2024127
Lamps, reflectors and electrical equipment + Tyres (rough estimate: 218 tests, 95% interval 2.0–2.7)2.3liftexpected joint rate2024218
Body, chassis, structure + Visibility (rough estimate: 114 tests, 95% interval 1.9–2.7)2.3liftexpected joint rate2024114
Tyres + Visibility (rough estimate: 131 tests, 95% interval 1.8–2.6)2.2liftexpected joint rate2024131
Steering + Tyres (rough estimate: 22 tests, 95% interval 1.3–3.2)2.1liftexpected joint rate202422
Body, chassis, structure + Tyres (rough estimate: 139 tests, 95% interval 1.7–2.4)2.0liftexpected joint rate2024139
Noise, emissions and leaks + Road Wheels (seen together; too few for a multiplier)19tests with both202419
Identification of the vehicle + Visibility (seen together; too few for a multiplier)19tests with both202419
Road Wheels + Tyres (seen together; too few for a multiplier)19tests with both202419
Steering + Suspension (seen together; too few for a multiplier)18tests with both202418
Identification of the vehicle + Noise, emissions and leaks (seen together; too few for a multiplier)13tests with both202413
Road Wheels + Visibility (seen together; too few for a multiplier)13tests with both202413
Identification of the vehicle + Suspension (seen together; too few for a multiplier)12tests with both202412
Seat belts and supplementary restraint systems + Steering (seen together; too few for a multiplier)10tests with both202410
Identification of the vehicle + Seat belts and supplementary restraint systems (seen together; too few for a multiplier)9tests with both20249
Road Wheels + Suspension (seen together; too few for a multiplier)9tests with both20249
Road Wheels + Seat belts and supplementary restraint systems (seen together; too few for a multiplier)6tests with both20246
Road Wheels + Steering (seen together; too few for a multiplier)5tests with both20245
Identification of the vehicle + Steering (seen together; too few for a multiplier)5tests with both20245

Source: DVSA MOT bulk data · Window: 2024 · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Has the Mercedes-Benz GL had safety recalls?

DVSA lists 5 safety recall campaigns matched to the Mercedes-Benz GL; check whether yours has been fixed, using its registration number.

Mercedes-Benz GL: the numbers behind this answer (DVSA register)
MeasureValueUnitCompared withYearsTests
DVSA recall campaigns matched5campaignsDVSA registerDVSA register3626

Source: DVSA register; recall effect covers 11 of 761 models · Window: DVSA register · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

What does a Mercedes-Benz GL cost to run in a fleet?

Of every 100 Mercedes-Benz GLs tested at age 8, about 18 failed the MOT first time (rough estimate); at age 10, about 17 (rough estimate). These are one-year rates for different cars tested in the same year, not a fleet followed over time (2024).

Mercedes-Benz GL: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Age 8 (rough estimate: 225 tests, 95% interval 13.7–23.8%)18.2% fail first time2024225
Age 9 (rough estimate: 629 tests, 95% interval 14.6–20.5%)17.3% fail first time2024629
Age 10 (rough estimate: 538 tests, 95% interval 14.0–20.3%)16.9% fail first time2024538
Age 11 (rough estimate: 518 tests, 95% interval 15.4–22.1%)18.5% fail first time2024518
Age 13 (rough estimate: 278 tests, 95% interval 15.8–25.3%)20.1% fail first time2024278
Age 14 (rough estimate: 203 tests, 95% interval 15.7–26.8%)20.7% fail first time2024203
Age 15 (rough estimate: 186 tests, 95% interval 24.5–37.6%)30.6% fail first time2024186
Age 16 (rough estimate: 233 tests, 95% interval 24.9–36.7%)30.5% fail first time2024233
Full table
Further values · 2024
MeasureValueUnitCompared withYearsTests
Age 17 (rough estimate: 452 tests, 95% interval 24.4–32.6%)28.3% fail first time2024452

Source: DVSA MOT bulk data · Window: 2024 · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

What have dealers been told about the Mercedes-Benz GL? (US market)

NHTSA lists 109 US technical service bulletins for the Mercedes-Benz GL (US market, Mercedes-Benz GL-CLASS, model years 2015–2016 only); a count, not a UK failure rate.

bar · Mercedes-Benz GL · US service bulletins · 109 vs NHTSA · NHTSA
NHTSA, US market, Mercedes-Benz GL-CLASS, model years 2015–2016 only; covers 211 of 761 models, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (NHTSA)
MeasureValueUnitCompared withYearsTests
US service bulletins109bulletinsNHTSANHTSA3626
Year 20139bulletinsNHTSANHTSA3626
Year 201414bulletinsNHTSANHTSA3626
Year 20155bulletinsNHTSANHTSA3626
Year 20166bulletinsNHTSANHTSA3626
Year 20172bulletinsNHTSANHTSA3626
Year 20191bulletinsNHTSANHTSA3626
Year 20208bulletinsNHTSANHTSA3626
Full table
Further values · NHTSA
MeasureValueUnitCompared withYearsTests
Year 20215bulletinsNHTSANHTSA3626
Year 20224bulletinsNHTSANHTSA3626
Year 20236bulletinsNHTSANHTSA3626
Year 202415bulletinsNHTSANHTSA3626
Year 202514bulletinsNHTSANHTSA3626
Year 202620bulletinsNHTSANHTSA3626

Source: NHTSA, US market, Mercedes-Benz GL-CLASS, model years 2015–2016 only; covers 211 of 761 models · Window: NHTSA · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

What do owners complain about? (US market)

The most common US owner complaint about the Mercedes-Benz GL to NHTSA concerns engine (not MOT-tested): 17 complaints (US market, Mercedes-Benz GL-CLASS, model years 2015–2016 only).

bar · Mercedes-Benz GL · Engine (not MOT-tested) · 17 vs baseline · NHTSA + 2024
NHTSA, US market, Mercedes-Benz GL-CLASS, model years 2015–2016 only; covers 211 of 761 models, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (NHTSA + 2024)
MeasureValueUnitCompared withYearsTests
Engine (not MOT-tested)17complaintsNHTSA + 202417
Lamps & electrical7complaintsNHTSA + 20247
Suspension4complaintsNHTSA + 20244
Visibility4complaintsNHTSA + 20244
Body & structure3complaintsNHTSA + 20243
Steering3complaintsNHTSA + 20243

Source: NHTSA, US market, Mercedes-Benz GL-CLASS, model years 2015–2016 only; covers 211 of 761 models · Window: NHTSA + 2024 · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Does the Mercedes-Benz GL fail inspections in other countries too?

In Norway, 38.8% of Mercedes-Benz GLs failed their periodic roadworthiness inspection, against 33.7% for all cars there (2024 by country, n = 877 inspections).

Both readings are shown: this comparison changes when usage or inspection rules differ.

Inspections abroad disagree: the Netherlands point the same way as Britain, Norway and Finland do not. Test rules, climate and how the vehicles are used differ, so both readings are shown.

bullet · Mercedes-Benz GL · Norway · 38.8 vs 33.7 · 2024 by country
Norway: 38.8 vs 33.7. Finland: 31.2 vs 26.3. Netherlands: 47 vs 50.8. Statens vegvesen PKK (CC BY 4.0), Traficom Katsastus (CC BY 4.0), RDW APK (CC0), adapted; covers 430 of 761 models, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2024 by country)
MeasureValueUnitCompared withYearsTests
Norway38.8% failed33.72024 by country877
Finland31.2% failed26.32024 by country708
Netherlands47% failed50.82024 by country642

Source: Statens vegvesen PKK (CC BY 4.0), Traficom Katsastus (CC BY 4.0), RDW APK (CC0), adapted; covers 430 of 761 models · Window: 2024 by country · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV · licences and full notice

Does the month of a Mercedes-Benz GL MOT matter?

Mercedes-Benz GLs fail first time most in February (22.8%, against 30.0% for all cars that month) and least in December (19.3%) (2024, n = 3,626).

line · Mercedes-Benz GL · January · 20.2 vs 31.1 · 2024
January: 20.2. December: 19.3. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz GL: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
January20.2% fail first time31.120241862
February22.8% fail first time30.020241661
March21.6% fail first time28.320241947
April20.7% fail first time29.820241336
May19.8% fail first time28.820241345
June20.1% fail first time28.120241545
July19.8% fail first time29.320241604
August20.7% fail first time29.220241446
Full table
Further values · 2024
MeasureValueUnitCompared withYearsTests
September20.6% fail first time28.220241930
October21.1% fail first time30.320242120
November20.2% fail first time30.620242023
December19.3% fail first time29.320241678

Source: DVSA MOT bulk data · Window: 2024 · n = 3,626 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Not enough tests for… (and why)

Real-world MPG against the official figure (manufacturer level)

layer not yet computed for this model (covers 19 of 761 models). 3,626 initial Mercedes-Benz GL tests are in the published model cohort.

Source: European Commission OBFCM; covers 19 of 761 models · Window: 2021+ cohorts · n = 3,626 (initial tests) · Method: computed estimate, not measured · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

See the Mercedes-Benz S-Class, a car of the same inspection class with 7.0× the tests · Check your car by registration

How to cite this page

MOT Risk Index (2026). Mercedes-Benz GL MOT statistics 2024 (data release dvsa-2024-v2; full dataset motriskindex-families-2024-v5, DOI 10.5281/zenodo.22975051), updated 24 September 2026. motriskindex.co.uk/cars/mercedes-gl/

How the MOT Risk Index and every figure on this page are calculated: methodology.

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Mercedes-Benz GL MOT: quick answers

What is the Mercedes-Benz GL first-time MOT pass rate?

79.2% of first attempts passed in 2024 (3,626 tests). Retests after repair are excluded; cars fixed at the test centre (PRS) are shown separately.

Why does this number differ from other sites?

Other sites may count retests or all attempts. This page uses 3,626 primary tests: 20.77% failed first time and 83.4% passed when cars fixed at the test centre (PRS) count as passes. The age-adjusted MOT Risk Index 61.5 is shown separately.