MOT Risk Index.co.uk

Mercedes-Benz R-Class MOT pass rate and common problems

74.8% of Mercedes-Benz R-Class models passed the 2024 MOT (based on 2,065 first tests): 68.3% at the first attempt and 6.4% after a fix at the test centre (PRS), each rounded separately. About 1 in 3 failed the first attempt. For its age, it fails 21% less often than normal: MOT Risk Index 78.7 (95% CI 73.8–83.8; 100 = normal).

Mercedes-Benz R-Class at a glance, 2024 MOT
MeasureValueUnitCompared withYearsTests
MOT pass rate74.8%incl. 6.4% fixed at the test centre20242065
Passed at the first attempt68.3%all first tests20242065
MOT Risk Index (95% CI 73.8–83.8)78.7index100 = normal for its age · rank 246 of 761 (1 = fails least for its age)20242065
Biggest excess: Body, chassis, structure19.4per 1009.8 same-age2019–202410206
Dangerous defects10.8per 10011.2 UK, not age-adjusted2019–202410206
Advisory items152.3per 100127.1 UK, not age-adjusted2019–202410206
strip · Mercedes-Benz R-Class · MOT Risk Index · 78.7 vs 100 = normal · 2024
MOT Risk Index · Mercedes-Benz R-Class. 0–240; 100 = normal for its age; median model 92.8 · rank 246 of 761 (1 = fails least for its age). It would rank between 208 and 301 anywhere within its 95% interval, other models held where they are. DVSA, 2024.
Mercedes-Benz R-Class index position among 761 models
MeasureValueUnitCompared withYearsTests
Rank246of 761published models, 1 = fails least for its age20242065
Best rank within its 95% interval208rankother models held where they are20242065
Worst rank within its 95% interval301rankother models held where they are20242065

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Download this page's numbers (CSV) · How to cite

Data release dvsa-2024-v2 (24 Sep 2026) · full dataset (v5). This model's index changed from 61.8 to 78.7 in the 24 September 2026 release, after duplicate test records were removed.

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

Mercedes-Benz R-Class MOTs fail most often on brakes: 20.3 per 100 tests, against 18.4 for UK cars of the same age (2019–2024, n = 10,206).

bar · Mercedes-Benz R-Class · Brakes · 20.3 vs 18.4 · 2019–2024
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz R-Class: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Brakes20.3per 10018.42019–20242070
Body, chassis, structure19.4per 1009.82019–20241985
Lamps, reflectors and electrical equipment18.6per 10030.22019–20241900
Tyres7.3per 10010.62019–2024744
Visibility7per 10010.42019–2024711
Suspension6.4per 10026.42019–2024652

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 10,206 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

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

Mercedes-Benz R-Class 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 14.8% of the time.

funnel · Mercedes-Benz R-Class · Brakes · 14.8 vs median model · 2019–2024
Advisories on brakes: 14.8 of 100 became a fail on the same item at the next MOT. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz R-Class: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Brakes14.8% next failmedian model2019–20241973
Tyres7.9% next failmedian model2019–20241607
Suspension7.6% next failmedian model2019–2024898
Noise, emissions and leaks5.9% next failmedian model2019–20241386

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 2,065 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

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

Mercedes-Benz R-Class MOTs flag brakes most: 52.3 advisories per 100 tests, against 34.7 across UK tests (2019–2024, n = 10,206).

bar · Mercedes-Benz R-Class · Brakes · 52.3 vs 34.7 · 2019–2024
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz R-Class: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Brakes52.3per 10034.72019–20245338
Tyres38.9per 10039.72019–20243970
Noise, emissions and leaks22.4per 1005.22019–20242283
Suspension21.6per 10026.22019–20242202
Non-component advisories6per 1007.82019–2024608
Identification of the vehicle3.3per 1002.52019–2024333

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 10,206 (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 R-Class?

For Mercedes-Benz R-Class models aged 9 to 11 whose last MOT was a pass, the item most likely to fail at the next MOT is ‘body, chassis, structure’: 14.0% failed on it (2019–2024, n = 1,020).

bar · Mercedes-Benz R-Class · Body, chassis, structure, 6 to 8 years old, after a pass (rough estimate: 148 cars) · 15.5 vs baseline · 2019–2024
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz R-Class: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Body, chassis, structure, 6 to 8 years old, after a pass (rough estimate: 148 cars)15.5% next fail2019–2024148
Lamps, reflectors and electrical equipment, 6 to 8 years old, after a pass (rough estimate: 148 cars)5.4% next fail2019–2024148
Brakes, 6 to 8 years old, after a pass (rough estimate: 148 cars)4.0% next fail2019–2024148
Tyres, 6 to 8 years old, after a pass (rough estimate: 148 cars)4.0% next fail2019–2024148
Body, chassis, structure, 6 to 8 years old, after an advisory (rough estimate: 125 cars)21.6% next fail2019–2024125
Brakes, 6 to 8 years old, after an advisory (rough estimate: 125 cars)5.6% next fail2019–2024125
Tyres, 6 to 8 years old, after an advisory (rough estimate: 125 cars)4% next fail2019–2024125
Body, chassis, structure, 6 to 8 years old, after a fail (rough estimate: 75 cars)22.7% next fail2019–202475
Full table
Further values · 2019–2024
MeasureValueUnitCompared withYearsTests
Brakes, 6 to 8 years old, after a fail (rough estimate: 75 cars)13.3% next fail2019–202475
Lamps, reflectors and electrical equipment, 6 to 8 years old, after a fail (rough estimate: 75 cars)13.3% next fail2019–202475
Tyres, 6 to 8 years old, after a fail (rough estimate: 75 cars)6.7% next fail2019–202475
Visibility, 6 to 8 years old, after a fail (rough estimate: 75 cars)6.7% next fail2019–202475
Body, chassis, structure, 9 to 11 years old, after a pass14.0% next fail2019–20241020
Brakes, 9 to 11 years old, after a pass6.5% next fail2019–20241020
Lamps, reflectors and electrical equipment, 9 to 11 years old, after a pass5.8% next fail2019–20241020
Visibility, 9 to 11 years old, after a pass4.6% next fail2019–20241020
Tyres, 9 to 11 years old, after a pass3.1% next fail2019–20241020
Noise, emissions and leaks, 9 to 11 years old, after a pass2.9% next fail2019–20241020
Suspension, 9 to 11 years old, after a pass2.6% next fail2019–20241020
Seat belts and supplementary restraint systems, 9 to 11 years old, after a pass0.8% next fail2019–20241020
Steering, 9 to 11 years old, after a pass0.6% next fail2019–20241020
Body, chassis, structure, 9 to 11 years old, after an advisory19.6% next fail2019–2024767
Brakes, 9 to 11 years old, after an advisory9.5% next fail2019–2024767
Lamps, reflectors and electrical equipment, 9 to 11 years old, after an advisory8.1% next fail2019–2024767
Tyres, 9 to 11 years old, after an advisory5.5% next fail2019–2024767
Visibility, 9 to 11 years old, after an advisory4.4% next fail2019–2024767
Noise, emissions and leaks, 9 to 11 years old, after an advisory3.3% next fail2019–2024767
Suspension, 9 to 11 years old, after an advisory3.1% next fail2019–2024767
Steering, 9 to 11 years old, after an advisory1.7% next fail2019–2024767
Seat belts and supplementary restraint systems, 9 to 11 years old, after an advisory0.9% next fail2019–2024767
Body, chassis, structure, 9 to 11 years old, after a fail19.6% next fail2019–2024654
Lamps, reflectors and electrical equipment, 9 to 11 years old, after a fail12.2% next fail2019–2024654
Brakes, 9 to 11 years old, after a fail10.5% next fail2019–2024654
Tyres, 9 to 11 years old, after a fail6.4% next fail2019–2024654
Visibility, 9 to 11 years old, after a fail6.4% next fail2019–2024654
Noise, emissions and leaks, 9 to 11 years old, after a fail6.1% next fail2019–2024654
Suspension, 9 to 11 years old, after a fail4.6% next fail2019–2024654
Seat belts and supplementary restraint systems, 9 to 11 years old, after a fail1.7% next fail2019–2024654
Steering, 9 to 11 years old, after a fail0.8% next fail2019–2024654
Body, chassis, structure, 12 to 14 years old, after a pass12.6% next fail2019–2024915
Lamps, reflectors and electrical equipment, 12 to 14 years old, after a pass9.3% next fail2019–2024915
Brakes, 12 to 14 years old, after a pass8.4% next fail2019–2024915
Visibility, 12 to 14 years old, after a pass4.7% next fail2019–2024915
Noise, emissions and leaks, 12 to 14 years old, after a pass4.3% next fail2019–2024915
Tyres, 12 to 14 years old, after a pass4.3% next fail2019–2024915
Suspension, 12 to 14 years old, after a pass3.8% next fail2019–2024915
Seat belts and supplementary restraint systems, 12 to 14 years old, after a pass1.6% next fail2019–2024915
Steering, 12 to 14 years old, after a pass1.2% next fail2019–2024915
Identification of the vehicle, 12 to 14 years old, after a pass0.7% next fail2019–2024915
Body, chassis, structure, 12 to 14 years old, after an advisory17.3% next fail2019–20241012
Lamps, reflectors and electrical equipment, 12 to 14 years old, after an advisory13.6% next fail2019–20241012
Brakes, 12 to 14 years old, after an advisory12.9% next fail2019–20241012
Visibility, 12 to 14 years old, after an advisory6.8% next fail2019–20241012
Tyres, 12 to 14 years old, after an advisory5.8% next fail2019–20241012
Noise, emissions and leaks, 12 to 14 years old, after an advisory5.6% next fail2019–20241012
Suspension, 12 to 14 years old, after an advisory4.5% next fail2019–20241012
Seat belts and supplementary restraint systems, 12 to 14 years old, after an advisory1.9% next fail2019–20241012
Steering, 12 to 14 years old, after an advisory0.7% next fail2019–20241012
Identification of the vehicle, 12 to 14 years old, after an advisory0.5% next fail2019–20241012
Body, chassis, structure, 12 to 14 years old, after a fail18.7% next fail2019–2024943
Lamps, reflectors and electrical equipment, 12 to 14 years old, after a fail16.8% next fail2019–2024943
Brakes, 12 to 14 years old, after a fail15.8% next fail2019–2024943
Suspension, 12 to 14 years old, after a fail7.8% next fail2019–2024943
Visibility, 12 to 14 years old, after a fail7.5% next fail2019–2024943
Noise, emissions and leaks, 12 to 14 years old, after a fail7.4% next fail2019–2024943
Tyres, 12 to 14 years old, after a fail4.9% next fail2019–2024943
Seat belts and supplementary restraint systems, 12 to 14 years old, after a fail2.4% next fail2019–2024943
Steering, 12 to 14 years old, after a fail1.3% next fail2019–2024943
Identification of the vehicle, 12 to 14 years old, after a fail0.9% next fail2019–2024943
Road wheels, 12 to 14 years old, after a fail0.7% next fail2019–2024943
Body, chassis, structure, 15 to 19 years old, after a pass (rough estimate: 478 cars)11.5% next fail2019–2024478
Lamps, reflectors and electrical equipment, 15 to 19 years old, after a pass (rough estimate: 478 cars)11.1% next fail2019–2024478
Brakes, 15 to 19 years old, after a pass (rough estimate: 478 cars)9.6% next fail2019–2024478
Suspension, 15 to 19 years old, after a pass (rough estimate: 478 cars)6.3% next fail2019–2024478
Visibility, 15 to 19 years old, after a pass (rough estimate: 478 cars)6.1% next fail2019–2024478
Tyres, 15 to 19 years old, after a pass (rough estimate: 478 cars)3.8% next fail2019–2024478
Noise, emissions and leaks, 15 to 19 years old, after a pass (rough estimate: 478 cars)2.9% next fail2019–2024478
Steering, 15 to 19 years old, after a pass (rough estimate: 478 cars)2.1% next fail2019–2024478
Seat belts and supplementary restraint systems, 15 to 19 years old, after a pass (rough estimate: 478 cars)1.1% next fail2019–2024478
Body, chassis, structure, 15 to 19 years old, after an advisory17.5% next fail2019–2024547
Lamps, reflectors and electrical equipment, 15 to 19 years old, after an advisory15.5% next fail2019–2024547
Brakes, 15 to 19 years old, after an advisory12.4% next fail2019–2024547
Visibility, 15 to 19 years old, after an advisory9.0% next fail2019–2024547
Suspension, 15 to 19 years old, after an advisory8.2% next fail2019–2024547
Tyres, 15 to 19 years old, after an advisory5.7% next fail2019–2024547
Noise, emissions and leaks, 15 to 19 years old, after an advisory4.0% next fail2019–2024547
Steering, 15 to 19 years old, after an advisory2.0% next fail2019–2024547
Road wheels, 15 to 19 years old, after an advisory1.1% next fail2019–2024547
Seat belts and supplementary restraint systems, 15 to 19 years old, after an advisory1.1% next fail2019–2024547
Lamps, reflectors and electrical equipment, 15 to 19 years old, after a fail21.4% next fail2019–2024518
Brakes, 15 to 19 years old, after a fail17.9% next fail2019–2024518
Body, chassis, structure, 15 to 19 years old, after a fail17.2% next fail2019–2024518
Noise, emissions and leaks, 15 to 19 years old, after a fail8.9% next fail2019–2024518
Visibility, 15 to 19 years old, after a fail8.7% next fail2019–2024518
Suspension, 15 to 19 years old, after a fail7.1% next fail2019–2024518
Tyres, 15 to 19 years old, after a fail7.0% next fail2019–2024518
Steering, 15 to 19 years old, after a fail3.3% next fail2019–2024518
Seat belts and supplementary restraint systems, 15 to 19 years old, after a fail2.3% next fail2019–2024518

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 2,065 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

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

The Mercedes-Benz R-Class gets a dangerous defect about as often as the UK average: 10.8 per 100 first tests against 11.2 across the UK. In the same tests, 52.9 major and 25.6 minor defects were recorded per 100 tests (one test can record several).

bullet · Mercedes-Benz R-Class · Dangerous defects · 10.8 vs 11.2 · 2019–2024
Dangerous defects: 10.8 vs 11.2. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz R-Class: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Dangerous defects10.8per 10011.22019–202410206

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 10,206 (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 R-Class still pass its MOT in a few years?

First-time MOT failures for the Mercedes-Benz R-Class go from 31.1% at age 11 (rough estimate: 151 tests, 95% interval 24.3–38.9%) to 35.3% at age 18 (rough estimate: 300 tests, 95% interval 30.1–40.9%), against 43.9% for all cars aged 18 (rough estimate: 300 tests, 95% interval 30.1–40.9%) (2024, n = 2,065).

line · Mercedes-Benz R-Class · Age 11 (rough estimate: 151 tests, 95% interval 24.3–38.9%) · 31.1 vs 33.2 · 2024
Age 11 (rough esti: 31.1. Age 18 (rough esti: 35.3. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz R-Class: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Age 11 (rough estimate: 151 tests, 95% interval 24.3–38.9%)31.1% failed first time33.22024151
Age 12 (rough estimate: 277 tests, 95% interval 22.5–33.0%)27.4% failed first time35.72024277
Age 13 (rough estimate: 343 tests, 95% interval 22.1–31.4%)26.5% failed first time38.22024343
Age 14 (rough estimate: 219 tests, 95% interval 27.9–40.3%)33.8% failed first time40.42024219
Age 15 (rough estimate: 185 tests, 95% interval 28.1–41.7%)34.6% failed first time41.62024185
Age 16 (rough estimate: 265 tests, 95% interval 23.9–34.8%)29.1% failed first time43.12024265
Age 17 (rough estimate: 316 tests, 95% interval 31.9–42.5%)37.0% failed first time43.12024316
Age 18 (rough estimate: 300 tests, 95% interval 30.1–40.9%)35.3% failed first time43.92024300

Source: DVSA MOT bulk data · Window: 2024 · n = 2,065 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

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

At 2 of 11 ages shown, Mercedes-Benz R-Class models fail first time more often than comparable models of the same size class; the biggest difference is at age 16, where they fail less often: 33.3% against 37.1% (2024, n = 1,151).

line · Mercedes-Benz R-Class · Age 8 · 23.1 vs 20.5 · 2024
Age 8: 23.1. Age 18: 35.0. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz R-Class: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Age 823.1% fail20.52024156
Age 921.7% fail23.12024461
Age 1023.8% fail25.62024860
Age 1127.2% fail28.220241080
Age 1231.9% fail30.620241193
Age 1331.4% fail32.620241265
Age 1433% fail34.620241418
Age 1533.0% fail36.020241593
Full table
Further values · 2024
MeasureValueUnitCompared withYearsTests
Age 1633.3% fail37.120241151
Age 1734.0% fail37.52024701
Age 1835.0% fail37.82024303

Source: DVSA MOT bulk data · Window: 2024 · n = 2,065 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Which Mercedes-Benz R-Class years should I avoid?

Mercedes-Benz R-Class build years range from index 88.5 to 103.5 against the model's own age norm of 100 (2019–2024, n = 2,065).

No Mercedes-Benz R-Class build year stands out once age is allowed for; every year's interval includes normal.

bar · Mercedes-Benz R-Class · Build year 2006 (rough estimate: 1,017 tests, 95% interval 88.8–109.9) · 99.4 vs 100 = normal · 2019–2024
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz R-Class: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Build year 2006 (rough estimate: 1,017 tests, 95% interval 88.8–109.9)99.4index vs own age100 = normal2019–20241017
Build year 2007 (rough estimate: 1,522 tests, 95% interval 94.6–112.3)103.5index vs own age100 = normal2019–20241522
Build year 2008 (rough estimate: 1,424 tests, 95% interval 87.2–104.8)96index vs own age100 = normal2019–20241424
Build year 2009 (rough estimate: 647 tests, 95% interval 86.3–113.0)99.7index vs own age100 = normal2019–2024647
Build year 2010 (rough estimate: 470 tests, 95% interval 76.6–106.5)91.6index vs own age100 = normal2019–2024470
Build year 2011 (rough estimate: 746 tests, 95% interval 76.1–101.0)88.5index vs own age100 = normal2019–2024746

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 2,065 (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 R-Class MOT fail?

Expected repair cost per Mercedes-Benz R-Class MOT: about £75 (up to about £142 if more expensive parts are needed), from the chance of failing each item and its most common UK repair price (catalogue estimate, n = 2,065).

Computed, not measured.

bar · Mercedes-Benz R-Class · Expected repair bill · 74.6 vs modal price catalogue · price catalogue
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz R-Class: the numbers behind this answer (price catalogue)
MeasureValueUnitCompared withYearsTests
Expected repair bill74.6GBP estimatemodal price catalogueprice catalogue2065
Estimated range lower74.6GBP estimatemodal price catalogueprice catalogue2065
Estimated range upper141.7GBP estimatemodal price catalogueprice catalogue2065
Brakes: Front brake pads (parts + labour, typical hatchback)30.4GBP expected contribution150price catalogue2065
Lamps, reflectors and electrical equipment: Battery replacement (standard 12V lead-acid)26.0GBP expected contribution140price catalogue2065
Suspension: Suspension coil spring (single corner)11.5GBP expected contribution180price catalogue2065
Tyres: Tyre (single mid-range 16" fitted)6.6GBP expected contribution90price catalogue2065

Source: DVSA MOT bulk data · Window: price catalogue · n = 2,065 (initial tests) · Method: computed estimate, not measured · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Is the Mercedes-Benz R-Class more reliable than similar cars?

Of 8 similar models, 5 fail less often for their age than the Mercedes-Benz R-Class and 3 as often or more. The Mercedes-Benz R-Class has an MOT Risk Index of 78.7, where 100 = normal for its age (2024, n = 2,065).

bar · Mercedes-Benz R-Class · Mercedes-Benz R-Class (this model) · 78.7 vs 100 = normal · 2024
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz R-Class: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Mercedes-Benz R-Class (this model)78.7index100 = normal20242065
Mercedes-Benz GLS78.1index78.720242759
Mazda RX-877.4index78.720242921
Kia Stinger83.5index78.720242119
Mercedes-Benz G-Class67.2index78.720241396
Maserati Ghibli75.3index78.720243519
Chrysler 300C83.8index78.720243372
Maserati Levante86.6index78.720242651
Full table
Further values · 2024
MeasureValueUnitCompared withYearsTests
Alfa Romeo Stelvio73.7index78.720243854

Source: DVSA MOT bulk data · Window: 2024 · n = 2,065 (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 R-Class normally do?

Mercedes-Benz R-Class: Age 11 median (rough estimate) is 104764 miles (2024).

line · Mercedes-Benz R-Class · Age 11 median (rough estimate) · 104764 vs baseline · 2024
Age 11 median (rou: 104764. Age 18 P75 (rough : 149347. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz R-Class: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Age 11 median (rough estimate)104764miles2024151
Age 11 P25 (rough estimate)85969miles2024151
Age 11 P75 (rough estimate)127210miles2024151
Age 12 median (rough estimate)103878miles2024277
Age 12 P25 (rough estimate)84978miles2024277
Age 12 P75 (rough estimate)132420miles2024277
Age 13 median (rough estimate)115153miles2024343
Age 13 P25 (rough estimate)93919miles2024343
Full table
Further values · 2024
MeasureValueUnitCompared withYearsTests
Age 13 P75 (rough estimate)140913miles2024343
Age 14 median (rough estimate)123638miles2024219
Age 14 P25 (rough estimate)98431miles2024219
Age 14 P75 (rough estimate)150049miles2024219
Age 15 median (rough estimate)122932miles2024185
Age 15 P25 (rough estimate)99499miles2024185
Age 15 P75 (rough estimate)146410miles2024185
Age 16 median (rough estimate)123806miles2024265
Age 16 P25 (rough estimate)98685miles2024265
Age 16 P75 (rough estimate)148195miles2024265
Age 17 median (rough estimate)127699miles2024316
Age 17 P25 (rough estimate)98793miles2024316
Age 17 P75 (rough estimate)152989miles2024316
Age 18 median (rough estimate)124463miles2024300
Age 18 P25 (rough estimate)101338miles2024300
Age 18 P75 (rough estimate)149347miles2024300

Source: DVSA MOT bulk data · Window: 2024 · n = 2,065 (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 R-Class MOT failures at the same age?

At ages 15+, 18.2% of Mercedes-Benz R-Class models with 40,000 to 70,000 miles failed first time, against 36.8% of those with over 140,000 miles (2024, n = 408). Inside this age group, higher mileage goes with more failures.

bar · Mercedes-Benz R-Class · Age 10–14, 40-70k miles (rough estimate: 76 tests, 95% interval 13.4–31.5%) · 21.1 vs baseline · 2024
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz R-Class: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Age 10–14, 40-70k miles (rough estimate: 76 tests, 95% interval 13.4–31.5%)21.1% failed first time202476
Age 10–14, 70-100k miles (rough estimate: 262 tests, 95% interval 23.1–34%)28.2% failed first time2024262
Age 10–14, 100-140k miles (rough estimate: 389 tests, 95% interval 23.3–32.1%)27.5% failed first time2024389
Age 10–14, 140k+ miles (rough estimate: 242 tests, 95% interval 30.6–42.6%)36.4% failed first time2024242
Age 15+, 40-70k miles (rough estimate: 55 tests, 95% interval 10.2–30.3%)18.2% failed first time202455
Age 15+, 70-100k miles (rough estimate: 207 tests, 95% interval 24.6–37%)30.4% failed first time2024207
Age 15+, 100-140k miles (rough estimate: 441 tests, 95% interval 31.9–40.9%)36.3% failed first time2024441
Age 15+, 140k+ miles (rough estimate: 353 tests, 95% interval 32–42%)36.8% failed first time2024353

Source: DVSA MOT bulk data · Window: 2024 · n = 2,065 (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 R-Class last?

64.5% of Mercedes-Benz R-Class models tested had reached 100,000 miles, and 18.3% had reached 150,000 (2024, n = 6,568).

line · Mercedes-Benz R-Class · 100,000 miles · 64.5 vs baseline · 2024
100,000 miles: 64.5. 200,000 miles (rou: 2.6. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz R-Class: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
100,000 miles64.5% of tested cars20246568
150,000 miles18.3% of tested cars20241860
200,000 miles (rough estimate: 261 tests, 95% interval 2.3–2.9%)2.6% of tested cars2024261

Source: DVSA MOT bulk data · Window: 2024 · n = 2,065 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

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

Matched on annual mileage as well as age, the Mercedes-Benz R-Class index is 71.5, against 75.7 on age alone (2019–2024, n = 2,065).

slope · Mercedes-Benz R-Class · Age and mileage adjusted index · 71.5 vs 75.7 · 2019–2024
Age and mileage adjusted index: 75.7 vs 71.5. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz R-Class: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Age and mileage adjusted index71.5index75.72019–20242065

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 2,065 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Which Mercedes-Benz R-Class fuel fails its MOT less?

All Mercedes-Benz R-Class models tested were diesel: 32.1% failed first time (2024, n = 1,898).

bar · Mercedes-Benz R-Class · Diesel · 32.1 vs other fuels · 2024
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz R-Class: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Diesel32.1% fail first timeother fuels20241898

Source: DVSA MOT bulk data · Window: 2024 · n = 2,065 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Which Mercedes-Benz R-Class engine is best?

No Mercedes-Benz R-Class 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 = 2,065).

bar · Mercedes-Benz R-Class · Petrol over 2.0 litre (rough estimate: 718 tests, 95% interval 79.6–99.6) · 89.3 vs 100 = model average · 2024
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz R-Class: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Petrol over 2.0 litre (rough estimate: 718 tests, 95% interval 79.6–99.6)89.3index vs model norm100 = model average2024718
Diesel over 2.0 litre100.9index vs model norm100 = model average20249424

Source: DVSA MOT bulk data · Window: 2024 · n = 2,065 (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 R-Class fail its MOT most?

Mercedes-Benz R-Class fails first-time MOTs most in Gloucester (GL): 40.9% against 30.8% across Britain for this model, both 2019–2024 (2024, n = 132).

bar · Mercedes-Benz R-Class · Gloucester (GL) (rough estimate: 132 tests, 95% interval 32.9–49.4%) · 40.9 vs 31.7 · 2024
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz R-Class: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Gloucester (GL) (rough estimate: 132 tests, 95% interval 32.9–49.4%)40.9% fail first time31.72024132
Portsmouth (PO) (rough estimate: 154 tests, 95% interval 32.8–48.2%)40.3% fail first time31.72024154
Medway (ME) (rough estimate: 124 tests, 95% interval 30.6–47.5%)38.7% fail first time31.72024124
Uxbridge (UB) (rough estimate: 121 tests, 95% interval 13.0–26.9%)19.0% fail first time31.72024121
London N (N) (rough estimate: 140 tests, 95% interval 14.2–27.4%)20% fail first time31.72024140
Birmingham (B) (rough estimate: 375 tests, 95% interval 19.0–27.4%)22.9% fail first time31.72024375
Nottingham (NG) (rough estimate: 157 tests, 95% interval 31.0–46.0%)38.2% fail first time31.72024157
Exeter (EX) (rough estimate: 106 tests, 95% interval 28.2–46.3%)36.8% fail first time31.72024106
Full table
Further values · 2024
MeasureValueUnitCompared withYearsTests
Northampton (NN) (rough estimate: 181 tests, 95% interval 28.3–42.0%)34.8% fail first time31.72024181
Bristol (BS) (rough estimate: 164 tests, 95% interval 27.9–42.3%)34.8% fail first time31.72024164
Tonbridge (TN) (rough estimate: 189 tests, 95% interval 28.0–41.4%)34.4% fail first time31.72024189
Guildford (GU) (rough estimate: 178 tests, 95% interval 27.7–41.5%)34.3% fail first time31.72024178
Newcastle (NE) (rough estimate: 108 tests, 95% interval 25.1–42.7%)33.3% fail first time31.72024108
Brighton (BN) (rough estimate: 118 tests, 95% interval 25.2–42.0%)33.0% fail first time31.72024118
Chelmsford (CM) (rough estimate: 125 tests, 95% interval 25.2–41.4%)32.8% fail first time31.72024125
London SW (SW) (rough estimate: 104 tests, 95% interval 23.6–41.2%)31.7% fail first time31.72024104
Cambridge (CB) (rough estimate: 111 tests, 95% interval 23.6–40.7%)31.5% fail first time31.72024111
Southampton (SO) (rough estimate: 131 tests, 95% interval 24.0–39.7%)31.3% fail first time31.72024131
Harrow (HA) (rough estimate: 129 tests, 95% interval 23.7–39.4%)31.0% fail first time31.72024129
Romford (RM) (rough estimate: 155 tests, 95% interval 24.2–38.6%)31.0% fail first time31.72024155
Slough (SL) (rough estimate: 110 tests, 95% interval 23.0–40.1%)30.9% fail first time31.72024110
Kingston upon Thames (KT) (rough estimate: 198 tests, 95% interval 24.3–37.0%)30.3% fail first time31.72024198
Canterbury (CT) (rough estimate: 113 tests, 95% interval 22.4–39.1%)30.1% fail first time31.72024113
Manchester (M) (rough estimate: 143 tests, 95% interval 23.2–38.0%)30.1% fail first time31.72024143
Oxford (OX) (rough estimate: 163 tests, 95% interval 23.5–37.5%)30.1% fail first time31.72024163
London NW (NW) (rough estimate: 181 tests, 95% interval 23.6–36.9%)29.8% fail first time31.72024181
Peterborough (PE) (rough estimate: 269 tests, 95% interval 24.2–35.1%)29.4% fail first time31.72024269
Hemel Hempstead (HP) (rough estimate: 165 tests, 95% interval 22.7–36.4%)29.1% fail first time31.72024165
Redhill (RH) (rough estimate: 125 tests, 95% interval 21.6–37.3%)28.8% fail first time31.72024125
London E (E) (rough estimate: 132 tests, 95% interval 21.8–37.0%)28.8% fail first time31.72024132
Ipswich (IP) (rough estimate: 136 tests, 95% interval 21.7–36.8%)28.7% fail first time31.72024136
Glasgow (G) (rough estimate: 109 tests, 95% interval 20.8–37.5%)28.4% fail first time31.72024109
Leicester (LE) (rough estimate: 177 tests, 95% interval 22.1–35.3%)28.3% fail first time31.72024177
Coventry (CV) (rough estimate: 193 tests, 95% interval 22.1–34.7%)28.0% fail first time31.72024193
Sheffield (S) (rough estimate: 140 tests, 95% interval 21.1–35.8%)27.9% fail first time31.72024140
Luton (LU) (rough estimate: 110 tests, 95% interval 19.0–35.3%)26.4% fail first time31.72024110
Milton Keynes (MK) (rough estimate: 142 tests, 95% interval 18.9–33.1%)25.4% fail first time31.72024142
Reading (RG) (rough estimate: 275 tests, 95% interval 20.0–30.2%)24.7% fail first time31.72024275
Twickenham (TW) (rough estimate: 154 tests, 95% interval 18.0–31.4%)24.0% fail first time31.72024154
London SE (SE) (rough estimate: 117 tests, 95% interval 16.4–31.5%)23.1% fail first time31.72024117

Source: DVSA MOT bulk data · Window: 2024 · n = 2,065 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Does a Mercedes-Benz R-Class rust more than average?

Allowing for age, Mercedes-Benz R-Class MOTs record corrosion failures at 2.9 times the national rate: 2.21% of tests against 0.77% (2024 + geographic layers, n = 2,059).

Computed, not measured.

slope · Mercedes-Benz R-Class · Salt belt susceptibility · 2.9 vs 1 · 2024 + geographic layers
Salt belt susceptibility: 1 vs 2.9. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz R-Class: the numbers behind this answer (2024 + geographic layers)
MeasureValueUnitCompared withYearsTests
Salt belt susceptibility2.9ratio estimate12024 + geographic layers2059

Source: DVSA MOT bulk data · Window: 2024 + geographic layers · n = 2,065 (initial tests) · Method: computed estimate, not measured · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Is a Mercedes-Benz R-Class ULEZ compliant?

An estimated 7.8% of Mercedes-Benz R-Class models 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 R-Class · Likely compliant · 7.8 vs baseline · 2024
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz R-Class: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Likely compliant7.8% estimate20242065

Source: DVSA MOT bulk data · Window: 2024 · n = 2,065 (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 R-Class?

Of failed Mercedes-Benz R-Class MOTs, 25.4% were retested the same day and a further 67.4% within 10 days; the median failed car passed its retest after 2 days (2019–2024, n = 2,105).

bar · Mercedes-Benz R-Class · Same-day retest · 25.4 vs failed initial tests · 2019–2024
DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz R-Class: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Same-day retest25.4%failed initial tests2019–20242105
Retest within 10 days67.4%failed initial tests2019–20242105
Clean MOT streak20.4%observed chains2019–20242354
Repeat advisory26.2%observed chains2019–20242354
Decreasing odometer0.6% mileage anomalyobserved chains2019–20242726

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 2,065 (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 R-Class?

Mercedes-Benz R-Class models aged 9 to 14 doing under 5,000 miles a year failed first time in 21.6% of tests, against 31.1% for those doing 8,000 to 12,000 miles (2019–2024, n = 431).

bullet · Mercedes-Benz R-Class · Low-use first-time failure · 21.6 vs 31.1 · 2019–2024
Low-use first-time failure: 21.6 vs 31.1. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz R-Class: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Low-use first-time failure21.6%31.12019–2024431
Low-use gap-9.6percentage points8–12k miles2019–2024431

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 2,065 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

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

31% of Mercedes-Benz R-Class models that failed an MOT failed the next one too, against 26.6% after a pass (2019–2024, n = 704). The failure most likely to come back is visibility: 32.6% of those fails recurred at the next MOT.

bullet · Mercedes-Benz R-Class · Repeat after fail · 31 vs 26.6 · 2019–2024
Repeat after fail: 31 vs 26.6. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz R-Class: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Repeat after fail31%26.62019–2024704

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 2,065 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Which Mercedes-Benz R-Class faults come together?

On Mercedes-Benz R-Class models, ‘noise, emissions and leaks’ and steering failures turn up together 4.4 times as often as chance would predict (2024, n = 26).

Mercedes-Benz R-Class: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Noise, emissions and leaks + Steering (rough estimate: 26 tests, 95% interval 2.9–6.5)4.4liftexpected joint rate202426
Brakes + Seat belts and supplementary restraint systems (rough estimate: 71 tests, 95% interval 3.0–4.8)3.8liftexpected joint rate202471
Brakes + Noise, emissions and leaks (rough estimate: 208 tests, 95% interval 3.1–4.1)3.6liftexpected joint rate2024208
Brakes + Road Wheels (rough estimate: 22 tests, 95% interval 2.2–5.4)3.5liftexpected joint rate202422
Lamps, reflectors and electrical equipment + Seat belts and supplementary restraint systems (rough estimate: 63 tests, 95% interval 2.6–4.3)3.3liftexpected joint rate202463
Identification of the vehicle + Lamps, reflectors and electrical equipment (rough estimate: 20 tests, 95% interval 2.0–5.1)3.3liftexpected joint rate202420
Noise, emissions and leaks + Seat belts and supplementary restraint systems (rough estimate: 26 tests, 95% interval 2.2–4.9)3.3liftexpected joint rate202426
Steering + Suspension (rough estimate: 20 tests, 95% interval 2.0–5.0)3.3liftexpected joint rate202420
Full table
Further values · 2024
MeasureValueUnitCompared withYearsTests
Lamps, reflectors and electrical equipment + Road Wheels (rough estimate: 20 tests, 95% interval 1.9–4.9)3.2liftexpected joint rate202420
Brakes + Suspension (rough estimate: 191 tests, 95% interval 2.7–3.6)3.1liftexpected joint rate2024191
Noise, emissions and leaks + Tyres (rough estimate: 80 tests, 95% interval 2.5–3.9)3.1liftexpected joint rate202480
Lamps, reflectors and electrical equipment + Noise, emissions and leaks (rough estimate: 180 tests, 95% interval 2.6–3.5)3.1liftexpected joint rate2024180
Seat belts and supplementary restraint systems + Tyres (rough estimate: 25 tests, 95% interval 1.9–4.5)3.0liftexpected joint rate202425
Brakes + Lamps, reflectors and electrical equipment (rough estimate: 414 tests, 95% interval 2.7–3.3)3.0liftexpected joint rate2024414
Seat belts and supplementary restraint systems + Suspension (rough estimate: 24 tests, 95% interval 1.9–4.4)2.9liftexpected joint rate202424
Noise, emissions and leaks + Suspension (rough estimate: 74 tests, 95% interval 2.3–3.6)2.9liftexpected joint rate202474
Lamps, reflectors and electrical equipment + Suspension (rough estimate: 171 tests, 95% interval 2.4–3.2)2.8liftexpected joint rate2024171
Lamps, reflectors and electrical equipment + Tyres (rough estimate: 170 tests, 95% interval 2.3–3.2)2.7liftexpected joint rate2024170
Brakes + Tyres (rough estimate: 166 tests, 95% interval 2.3–3.1)2.7liftexpected joint rate2024166
Lamps, reflectors and electrical equipment + Steering (rough estimate: 37 tests, 95% interval 1.8–3.6)2.6liftexpected joint rate202437
Body, chassis, structure + Steering (rough estimate: 46 tests, 95% interval 1.8–3.2)2.4liftexpected joint rate202446
Brakes + Steering (rough estimate: 33 tests, 95% interval 1.6–3.3)2.4liftexpected joint rate202433
Body, chassis, structure + Seat belts and supplementary restraint systems (rough estimate: 59 tests, 95% interval 1.8–3.0)2.3liftexpected joint rate202459
Suspension + Tyres (rough estimate: 62 tests, 95% interval 1.8–3.0)2.3liftexpected joint rate202462
Lamps, reflectors and electrical equipment + Visibility (rough estimate: 157 tests, 95% interval 1.8–2.5)2.1liftexpected joint rate2024157
Noise, emissions and leaks + Visibility (rough estimate: 60 tests, 95% interval 1.5–2.5)1.9liftexpected joint rate202460
Suspension + Visibility (rough estimate: 62 tests, 95% interval 1.5–2.5)1.9liftexpected joint rate202462
Body, chassis, structure + Brakes (rough estimate: 342 tests, 95% interval 1.6–2.0)1.8liftexpected joint rate2024342
Body, chassis, structure + Noise, emissions and leaks (rough estimate: 143 tests, 95% interval 1.5–2.1)1.8liftexpected joint rate2024143
Body, chassis, structure + Tyres (rough estimate: 149 tests, 95% interval 1.5–2.1)1.8liftexpected joint rate2024149
Brakes + Visibility (rough estimate: 129 tests, 95% interval 1.5–2.1)1.8liftexpected joint rate2024129
Body, chassis, structure + Lamps, reflectors and electrical equipment (rough estimate: 334 tests, 95% interval 1.6–1.9)1.7liftexpected joint rate2024334
Body, chassis, structure + Suspension (rough estimate: 134 tests, 95% interval 1.4–1.9)1.6liftexpected joint rate2024134
Tyres + Visibility (rough estimate: 52 tests, 95% interval 1.2–2.1)1.6liftexpected joint rate202452
Body, chassis, structure + Visibility (rough estimate: 151 tests, 95% interval 1.3–1.8)1.5liftexpected joint rate2024151
Body, chassis, structure + Road Wheels (seen together; too few for a multiplier)19tests with both202419
Seat belts and supplementary restraint systems + Visibility (seen together; too few for a multiplier)19tests with both202419
Brakes + Identification of the vehicle (seen together; too few for a multiplier)18tests with both202418
Road Wheels + Tyres (seen together; too few for a multiplier)17tests with both202417
Body, chassis, structure + Identification of the vehicle (seen together; too few for a multiplier)16tests with both202416
Noise, emissions and leaks + Road Wheels (seen together; too few for a multiplier)15tests with both202415
Steering + Visibility (seen together; too few for a multiplier)14tests with both202414
Identification of the vehicle + Noise, emissions and leaks (seen together; too few for a multiplier)12tests with both202412
Steering + Tyres (seen together; too few for a multiplier)9tests with both20249
Identification of the vehicle + Tyres (seen together; too few for a multiplier)8tests with both20248
Seat belts and supplementary restraint systems + Steering (seen together; too few for a multiplier)7tests with both20247
Identification of the vehicle + Visibility (seen together; too few for a multiplier)7tests with both20247
Identification of the vehicle + Seat belts and supplementary restraint systems (seen together; too few for a multiplier)6tests with both20246
Identification of the vehicle + Suspension (seen together; too few for a multiplier)6tests with both20246
Road Wheels + Suspension (seen together; too few for a multiplier)6tests with both20246
Road Wheels + Seat belts and supplementary restraint systems (seen together; too few for a multiplier)5tests with both20245
Road Wheels + Visibility (seen together; too few for a multiplier)5tests with both20245

Source: DVSA MOT bulk data · Window: 2024 · n = 2,065 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Has the Mercedes-Benz R-Class had safety recalls?

DVSA lists 12 safety recall campaigns matched to the Mercedes-Benz R-Class; check whether yours has been fixed, using its registration number.

Mercedes-Benz R-Class: the numbers behind this answer (DVSA register)
MeasureValueUnitCompared withYearsTests
DVSA recall campaigns matched12campaignsDVSA registerDVSA register2065

Source: DVSA register; recall effect covers 11 of 761 models · Window: DVSA register · n = 2,065 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

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

Of every 100 Mercedes-Benz R-Class models tested at age 11, about 31 failed the MOT first time (rough estimate); at age 18, about 35 (rough estimate). These are one-year rates for different cars tested in the same year, not a fleet followed over time (2024).

Mercedes-Benz R-Class: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Age 11 (rough estimate: 151 tests, 95% interval 24.3–38.9%)31.1% fail first time2024151
Age 12 (rough estimate: 277 tests, 95% interval 22.5–33.0%)27.4% fail first time2024277
Age 13 (rough estimate: 343 tests, 95% interval 22.1–31.4%)26.5% fail first time2024343
Age 14 (rough estimate: 219 tests, 95% interval 27.9–40.3%)33.8% fail first time2024219
Age 15 (rough estimate: 185 tests, 95% interval 28.1–41.7%)34.6% fail first time2024185
Age 16 (rough estimate: 265 tests, 95% interval 23.9–34.8%)29.1% fail first time2024265
Age 17 (rough estimate: 316 tests, 95% interval 31.9–42.5%)37.0% fail first time2024316
Age 18 (rough estimate: 300 tests, 95% interval 30.1–40.9%)35.3% fail first time2024300

Source: DVSA MOT bulk data · Window: 2024 · n = 2,065 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Does the month of a Mercedes-Benz R-Class MOT matter?

Mercedes-Benz R-Class models fail first time most in May (33.8%, against 28.8% for all cars that month) and least in December (27.6%) (2024, n = 2,065).

line · Mercedes-Benz R-Class · January · 30.7 vs 31.1 · 2024
January: 30.7. December: 27.6. DVSA MOT bulk data, 24 Sep 2026.
Mercedes-Benz R-Class: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
January30.7% fail first time31.120241077
February31.8% fail first time30.02024949
March29.8% fail first time28.32024945
April33.0% fail first time29.82024630
May33.8% fail first time28.82024660
June30.4% fail first time28.12024754
July30.8% fail first time29.32024736
August29.3% fail first time29.22024689
Full table
Further values · 2024
MeasureValueUnitCompared withYearsTests
September29.7% fail first time28.22024885
October30.9% fail first time30.320241017
November32.0% fail first time30.620241026
December27.6% fail first time29.32024838

Source: DVSA MOT bulk data · Window: 2024 · n = 2,065 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Not enough tests for… (and why)

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

not computed for this model: no qualifying records. 2,065 initial Mercedes-Benz R-Class tests are in the published model cohort.

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 2,065 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

See the Volvo S80, a car of the same inspection class with 3.4× the tests · Check your car by registration

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

layer not yet computed for this model (covers 211 of 761 models). 2,065 initial Mercedes-Benz R-Class tests are in the published model cohort.

Source: NHTSA, US market; covers 211 of 761 models · Window: NHTSA · n = 2,065 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

See the Volvo S80, a car of the same inspection class with 3.4× the tests · Check your car by registration

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

no match in the other-country inspection register. 2,065 initial Mercedes-Benz R-Class tests are in the published model cohort.

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 = 2,065 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

See the Volvo S80, a car of the same inspection class with 3.4× the tests · Check your car by registration

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

layer not yet computed for this model (covers 19 of 761 models). 2,065 initial Mercedes-Benz R-Class tests are in the published model cohort.

Source: European Commission OBFCM; covers 19 of 761 models · Window: 2021+ cohorts · n = 2,065 (initial tests) · Method: computed estimate, not measured · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

See the Volvo S80, a car of the same inspection class with 3.4× the tests · Check your car by registration

How to cite this page

MOT Risk Index (2026). Mercedes-Benz R-Class 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-r-class/

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

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Mercedes-Benz R-Class MOT: quick answers

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

68.3% of first attempts passed in 2024 (2,065 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 2,065 primary tests: 31.67% failed first time and 74.8% passed when cars fixed at the test centre (PRS) count as passes. The age-adjusted MOT Risk Index 78.7 is shown separately.