MOT Risk Index.co.uk

Vauxhall Signum MOT pass rate and common problems

62.4% of Vauxhall Signums passed the 2024 MOT (based on 1,157 first tests): 56.9% at the first attempt and 5.5% after a fix at the test centre (PRS). About 2 in 5 failed the first attempt. For its age, it is statistically indistinguishable from normal: MOT Risk Index 100.2 (95% CI 93.6–106.9; 100 = normal).

Vauxhall Signum at a glance, 2024 MOT
MeasureValueUnitCompared withYearsTests
MOT pass rate62.4%incl. 5.5% fixed at the test centre20241157
Passed at the first attempt56.9%all first tests20241157
MOT Risk Index (95% CI 93.6–106.9)100.2index100 = normal for its age · rank 460 of 761 (1 = fails least for its age)20241157
Biggest excess: Brakes33.6per 10021.7 same-age2019–202417028
Dangerous defects21.8per 10011.2 UK, not age-adjusted2019–202417028
Advisory items230.0per 100127.1 UK, not age-adjusted2019–202417028
strip · Vauxhall Signum · MOT Risk Index · 100.2 vs 100 = normal · 2024
MOT Risk Index · Vauxhall Signum. 0–240; 100 = normal for its age; median model 92.8 · rank 460 of 761 (1 = fails least for its age). It would rank between 389 and 533 anywhere within its 95% interval, other models held where they are. DVSA, 2024.
Vauxhall Signum index position among 761 models
MeasureValueUnitCompared withYearsTests
Rank460of 761published models, 1 = fails least for its age20241157
Best rank within its 95% interval389rankother models held where they are20241157
Worst rank within its 95% interval533rankother models held where they are20241157

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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 moved from 99.0 to 100.2 in the 24 September 2026 release, after duplicate test records were removed, and crossed the normal line.

What actually fails on a Vauxhall Signum MOT, and how often?

Vauxhall Signum MOTs fail most often on ‘lamps, reflectors and electrical equipment’: 42.2 per 100 tests, against 36.1 for UK cars of the same age (2019–2024, n = 17,028).

bar · Vauxhall Signum · Lamps, reflectors and electrical equipment · 42.2 vs 36.1 · 2019–2024
DVSA MOT bulk data, 24 Sep 2026.
Vauxhall Signum: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Lamps, reflectors and electrical equipment42.2per 10036.12019–20247178
Suspension35.5per 10030.42019–20246052
Brakes33.6per 10021.72019–20245716
Body, chassis, structure18.3per 10012.42019–20243121
Tyres15.4per 10010.82019–20242614
Visibility13.7per 10011.72019–20242333

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 17,028 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Will my Vauxhall Signum's advisory become a fail at the next MOT?

Vauxhall Signum advisories turn into fails more often than on the median model: lamps, reflectors and electrical equipment advisories became a fail at the next MOT 38.8% of the time.

funnel · Vauxhall Signum · Lamps, reflectors and electrical equipment · 38.8 vs median model · 2019–2024
Advisories on lamps, reflectors and electrical equipment: 38.8 of 100 became a fail on the same item at the next MOT. DVSA MOT bulk data, 24 Sep 2026.
Vauxhall Signum: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Lamps, reflectors and electrical equipment38.8% next failmedian model2019–2024559
Suspension25.6% next failmedian model2019–20242912
Brakes21.9% next failmedian model2019–20244183
Body, chassis, structure18.7% next failmedian model2019–20241628
Tyres13.7% next failmedian model2019–20243279
Noise, emissions and leaks9.6% next failmedian model2019–20241173
Identification of the vehicle5.1% next failmedian model2019–2024630
Non-component advisories0% next failmedian model2019–20241387

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 1,157 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

My Vauxhall Signum got an MOT advisory: what gets flagged most?

Vauxhall Signum MOTs flag brakes most: 68.3 advisories per 100 tests, against 34.7 across UK tests (2019–2024, n = 17,028).

bar · Vauxhall Signum · Brakes · 68.3 vs 34.7 · 2019–2024
DVSA MOT bulk data, 24 Sep 2026.
Vauxhall Signum: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Brakes68.3per 10034.72019–202411633
Suspension48.7per 10026.22019–20248296
Tyres48.1per 10039.72019–20248193
Body, chassis, structure17.3per 1004.62019–20242951
Non-component advisories15.3per 1007.82019–20242604
Noise, emissions and leaks12per 1005.22019–20242044

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 17,028 (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 Vauxhall Signum?

For Vauxhall Signums aged 12 to 14 whose last MOT was a fail, the item most likely to fail at the next MOT is ‘lamps, reflectors and electrical equipment’: 26.8% failed on it (2019–2024, n = 2,734).

bar · Vauxhall Signum · Suspension, 9 to 11 years old, after a pass (rough estimate: 122 cars) · 16.4 vs baseline · 2019–2024
DVSA MOT bulk data, 24 Sep 2026.
Vauxhall Signum: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Suspension, 9 to 11 years old, after a pass (rough estimate: 122 cars)16.4% next fail2019–2024122
Lamps, reflectors and electrical equipment, 9 to 11 years old, after a pass (rough estimate: 122 cars)13.1% next fail2019–2024122
Brakes, 9 to 11 years old, after a pass (rough estimate: 122 cars)9.0% next fail2019–2024122
Tyres, 9 to 11 years old, after a pass (rough estimate: 122 cars)9.0% next fail2019–2024122
Visibility, 9 to 11 years old, after a pass (rough estimate: 122 cars)6.6% next fail2019–2024122
Suspension, 9 to 11 years old, after an advisory (rough estimate: 150 cars)24.7% next fail2019–2024150
Lamps, reflectors and electrical equipment, 9 to 11 years old, after an advisory (rough estimate: 150 cars)20.7% next fail2019–2024150
Brakes, 9 to 11 years old, after an advisory (rough estimate: 150 cars)14.0% next fail2019–2024150
Full table
Further values · 2019–2024
MeasureValueUnitCompared withYearsTests
Tyres, 9 to 11 years old, after an advisory (rough estimate: 150 cars)11.3% next fail2019–2024150
Visibility, 9 to 11 years old, after an advisory (rough estimate: 150 cars)8.7% next fail2019–2024150
Body, chassis, structure, 9 to 11 years old, after an advisory (rough estimate: 150 cars)6% next fail2019–2024150
Noise, emissions and leaks, 9 to 11 years old, after an advisory (rough estimate: 150 cars)4% next fail2019–2024150
Lamps, reflectors and electrical equipment, 9 to 11 years old, after a fail (rough estimate: 219 cars)23.3% next fail2019–2024219
Suspension, 9 to 11 years old, after a fail (rough estimate: 219 cars)23.3% next fail2019–2024219
Body, chassis, structure, 9 to 11 years old, after a fail (rough estimate: 219 cars)15.5% next fail2019–2024219
Brakes, 9 to 11 years old, after a fail (rough estimate: 219 cars)15.5% next fail2019–2024219
Tyres, 9 to 11 years old, after a fail (rough estimate: 219 cars)15.5% next fail2019–2024219
Visibility, 9 to 11 years old, after a fail (rough estimate: 219 cars)12.8% next fail2019–2024219
Noise, emissions and leaks, 9 to 11 years old, after a fail (rough estimate: 219 cars)9.6% next fail2019–2024219
Suspension, 12 to 14 years old, after a pass18.5% next fail2019–20241361
Lamps, reflectors and electrical equipment, 12 to 14 years old, after a pass14.1% next fail2019–20241361
Brakes, 12 to 14 years old, after a pass10.4% next fail2019–20241361
Body, chassis, structure, 12 to 14 years old, after a pass9.0% next fail2019–20241361
Tyres, 12 to 14 years old, after a pass7.7% next fail2019–20241361
Visibility, 12 to 14 years old, after a pass7.3% next fail2019–20241361
Noise, emissions and leaks, 12 to 14 years old, after a pass4.9% next fail2019–20241361
Steering, 12 to 14 years old, after a pass1.5% next fail2019–20241361
Seat belts and supplementary restraint systems, 12 to 14 years old, after a pass1.0% next fail2019–20241361
Road wheels, 12 to 14 years old, after a pass0.6% next fail2019–20241361
Identification of the vehicle, 12 to 14 years old, after a pass0.4% next fail2019–20241361
Lamps, reflectors and electrical equipment, 12 to 14 years old, after an advisory21.0% next fail2019–20241849
Suspension, 12 to 14 years old, after an advisory19.3% next fail2019–20241849
Brakes, 12 to 14 years old, after an advisory15.7% next fail2019–20241849
Body, chassis, structure, 12 to 14 years old, after an advisory13.7% next fail2019–20241849
Visibility, 12 to 14 years old, after an advisory10.1% next fail2019–20241849
Tyres, 12 to 14 years old, after an advisory9.7% next fail2019–20241849
Noise, emissions and leaks, 12 to 14 years old, after an advisory5.3% next fail2019–20241849
Steering, 12 to 14 years old, after an advisory1.8% next fail2019–20241849
Seat belts and supplementary restraint systems, 12 to 14 years old, after an advisory1.2% next fail2019–20241849
Identification of the vehicle, 12 to 14 years old, after an advisory0.7% next fail2019–20241849
Road wheels, 12 to 14 years old, after an advisory0.3% next fail2019–20241849
Lamps, reflectors and electrical equipment, 12 to 14 years old, after a fail26.8% next fail2019–20242734
Suspension, 12 to 14 years old, after a fail25.5% next fail2019–20242734
Brakes, 12 to 14 years old, after a fail19.6% next fail2019–20242734
Body, chassis, structure, 12 to 14 years old, after a fail15.2% next fail2019–20242734
Visibility, 12 to 14 years old, after a fail12.8% next fail2019–20242734
Tyres, 12 to 14 years old, after a fail11.6% next fail2019–20242734
Noise, emissions and leaks, 12 to 14 years old, after a fail9.3% next fail2019–20242734
Steering, 12 to 14 years old, after a fail2.7% next fail2019–20242734
Seat belts and supplementary restraint systems, 12 to 14 years old, after a fail1.6% next fail2019–20242734
Road wheels, 12 to 14 years old, after a fail0.9% next fail2019–20242734
Identification of the vehicle, 12 to 14 years old, after a fail0.8% next fail2019–20242734
Lamps, reflectors and electrical equipment, 15 to 19 years old, after a pass16.6% next fail2019–20241020
Suspension, 15 to 19 years old, after a pass15.4% next fail2019–20241020
Brakes, 15 to 19 years old, after a pass11.0% next fail2019–20241020
Body, chassis, structure, 15 to 19 years old, after a pass9.8% next fail2019–20241020
Tyres, 15 to 19 years old, after a pass7.2% next fail2019–20241020
Visibility, 15 to 19 years old, after a pass7.2% next fail2019–20241020
Noise, emissions and leaks, 15 to 19 years old, after a pass5% next fail2019–20241020
Steering, 15 to 19 years old, after a pass2.1% next fail2019–20241020
Seat belts and supplementary restraint systems, 15 to 19 years old, after a pass0.9% next fail2019–20241020
Road wheels, 15 to 19 years old, after a pass0.5% next fail2019–20241020
Lamps, reflectors and electrical equipment, 15 to 19 years old, after an advisory25.8% next fail2019–20241785
Suspension, 15 to 19 years old, after an advisory19.5% next fail2019–20241785
Brakes, 15 to 19 years old, after an advisory15.7% next fail2019–20241785
Body, chassis, structure, 15 to 19 years old, after an advisory14.3% next fail2019–20241785
Visibility, 15 to 19 years old, after an advisory11.4% next fail2019–20241785
Tyres, 15 to 19 years old, after an advisory9.9% next fail2019–20241785
Noise, emissions and leaks, 15 to 19 years old, after an advisory6.0% next fail2019–20241785
Steering, 15 to 19 years old, after an advisory2.7% next fail2019–20241785
Seat belts and supplementary restraint systems, 15 to 19 years old, after an advisory0.8% next fail2019–20241785
Identification of the vehicle, 15 to 19 years old, after an advisory0.6% next fail2019–20241785
Road wheels, 15 to 19 years old, after an advisory0.3% next fail2019–20241785
Lamps, reflectors and electrical equipment, 15 to 19 years old, after a fail34.2% next fail2019–20242397
Suspension, 15 to 19 years old, after a fail25.9% next fail2019–20242397
Brakes, 15 to 19 years old, after a fail21.9% next fail2019–20242397
Body, chassis, structure, 15 to 19 years old, after a fail18.6% next fail2019–20242397
Visibility, 15 to 19 years old, after a fail13.4% next fail2019–20242397
Tyres, 15 to 19 years old, after a fail10.4% next fail2019–20242397
Noise, emissions and leaks, 15 to 19 years old, after a fail10.2% next fail2019–20242397
Steering, 15 to 19 years old, after a fail3.9% next fail2019–20242397
Seat belts and supplementary restraint systems, 15 to 19 years old, after a fail1.3% next fail2019–20242397
Identification of the vehicle, 15 to 19 years old, after a fail0.9% next fail2019–20242397
Road wheels, 15 to 19 years old, after a fail0.9% next fail2019–20242397

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 1,157 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

How often does a Vauxhall Signum get a dangerous MOT defect?

The Vauxhall Signum gets a dangerous defect more often than the UK average: 21.8 per 100 first tests against 11.2 across the UK. A dangerous defect means the vehicle should not be driven away until it is fixed. In the same tests, 121.7 major and 31.6 minor defects were recorded per 100 tests (one test can record several).

bullet · Vauxhall Signum · Dangerous defects · 21.8 vs 11.2 · 2019–2024
Dangerous defects: 21.8 vs 11.2. DVSA MOT bulk data, 24 Sep 2026.
Vauxhall Signum: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Dangerous defects21.8per 10011.22019–202417028

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 17,028 (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 Vauxhall Signum still pass its MOT in a few years?

First-time MOT failures for the Vauxhall Signum go from 45.7% at age 17 (rough estimate: 269 tests, 95% interval 39.9–51.7%) to 40.4% at age 19 (rough estimate: 208 tests, 95% interval 34.0–47.2%), against 43.5% for all cars aged 19 (rough estimate: 208 tests, 95% interval 34.0–47.2%) (2024, n = 1,157).

line · Vauxhall Signum · Age 17 (rough estimate: 269 tests, 95% interval 39.9–51.7%) · 45.7 vs 43.1 · 2024
Age 17 (rough esti: 45.7. Age 19 (rough esti: 40.4. DVSA MOT bulk data, 24 Sep 2026.
Vauxhall Signum: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Age 17 (rough estimate: 269 tests, 95% interval 39.9–51.7%)45.7% failed first time43.12024269
Age 18 (rough estimate: 436 tests, 95% interval 35.6–44.8%)40.1% failed first time43.92024436
Age 19 (rough estimate: 208 tests, 95% interval 34.0–47.2%)40.4% failed first time43.52024208

Source: DVSA MOT bulk data · Window: 2024 · n = 1,157 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

How does the Vauxhall Signum compare with cars of its own age and size?

At 8 of 9 ages shown, Vauxhall Signums fail first time more often than comparable models of the same size class; the biggest difference is at age 12, where they fail more often: 48.0% against 36.5% (2024, n = 1,026).

line · Vauxhall Signum · Age 12 · 48.0 vs 36.5 · 2024
Age 12: 48.0. Age 20: 46.5. DVSA MOT bulk data, 24 Sep 2026.
Vauxhall Signum: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Age 1248.0% fail36.520241026
Age 1348.0% fail38.920242556
Age 1446.6% fail40.820243089
Age 1547.9% fail42.320243425
Age 1647.3% fail43.120242789
Age 1747.4% fail43.520241986
Age 1846.2% fail43.620241227
Age 1942.6% fail43.22024542
Full table
Further values · 2024
MeasureValueUnitCompared withYearsTests
Age 2046.5% fail42.42024228

Source: DVSA MOT bulk data · Window: 2024 · n = 1,157 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Which Vauxhall Signum years should I avoid?

Vauxhall Signum build years range from index 95.0 to 108.1 against the model's own age norm of 100 (2019–2024, n = 1,157).

bar · Vauxhall Signum · Build year 2003 (rough estimate: 747 tests, 95% interval 95.4–116.8) · 106.1 vs 100 = normal · 2019–2024
DVSA MOT bulk data, 24 Sep 2026.
Vauxhall Signum: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Build year 2003 (rough estimate: 747 tests, 95% interval 95.4–116.8)106.1index vs own age100 = normal2019–2024747
Build year 2004 (worse for its age) (rough estimate: 2,468 tests, 95% interval 102.2–114.0)108.1index vs own age100 = normal2019–20242468
Build year 2005 (rough estimate: 3,384 tests, 95% interval 95.6–105.4)100.5index vs own age100 = normal2019–20243384
Build year 2006 (better for its age)95index vs own age100 = normal2019–20245837
Build year 2007 (rough estimate: 3,442 tests, 95% interval 90.6–100.0)95.3index vs own age100 = normal2019–20243442

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 1,157 (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 Vauxhall Signum MOT fail?

Expected repair cost per Vauxhall Signum MOT: about £187 (up to about £356 if more expensive parts are needed), from the chance of failing each item and its most common UK repair price (catalogue estimate, n = 1,157).

Computed, not measured.

bar · Vauxhall Signum · Expected repair bill · 187.2 vs modal price catalogue · price catalogue
DVSA MOT bulk data, 24 Sep 2026.
Vauxhall Signum: the numbers behind this answer (price catalogue)
MeasureValueUnitCompared withYearsTests
Expected repair bill187.2GBP estimatemodal price catalogueprice catalogue1157
Estimated range lower187.2GBP estimatemodal price catalogueprice catalogue1157
Estimated range upper355.8GBP estimatemodal price catalogueprice catalogue1157
Suspension: Suspension coil spring (single corner)63.9GBP expected contribution180price catalogue1157
Lamps, reflectors and electrical equipment: Battery replacement (standard 12V lead-acid)59.1GBP expected contribution140price catalogue1157
Brakes: Front brake pads (parts + labour, typical hatchback)50.4GBP expected contribution150price catalogue1157
Tyres: Tyre (single mid-range 16" fitted)13.9GBP expected contribution90price catalogue1157

Source: DVSA MOT bulk data · Window: price catalogue · n = 1,157 (initial tests) · Method: computed estimate, not measured · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Is the Vauxhall Signum more reliable than similar cars?

Of 8 similar models, 5 fail less often for their age than the Vauxhall Signum and 3 as often or more. The Vauxhall Signum has an MOT Risk Index of 100.2, where 100 = normal for its age (2024, n = 1,157).

bar · Vauxhall Signum · Vauxhall Signum (this model) · 100.2 vs 100 = normal · 2024
DVSA MOT bulk data, 24 Sep 2026.
Vauxhall Signum: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Vauxhall Signum (this model)100.2index100 = normal20241157
Alfa Romeo 15698index100.220241206
Fiat Coupe99.8index100.22024802
Mercedes-Benz V98.9index100.220242250
Alfa Romeo 147104.7index100.220241834
Mitsubishi Shogun Pinin108.4index100.220241291
DS DS5108index100.220241360
Alfa Romeo GT99.2index100.220242798
Full table
Further values · 2024
MeasureValueUnitCompared withYearsTests
Vauxhall Cascada85.1index100.220242822

Source: DVSA MOT bulk data · Window: 2024 · n = 1,157 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

How many miles does a Vauxhall Signum normally do?

Vauxhall Signum: Age 17 median (rough estimate) is 124657 miles (2024).

line · Vauxhall Signum · Age 17 median (rough estimate) · 124657 vs baseline · 2024
Age 17 median (rou: 124657. Age 19 P75 (rough : 145443. DVSA MOT bulk data, 24 Sep 2026.
Vauxhall Signum: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Age 17 median (rough estimate)124657miles2024269
Age 17 P25 (rough estimate)96541miles2024269
Age 17 P75 (rough estimate)152903miles2024269
Age 18 median (rough estimate)122621miles2024436
Age 18 P25 (rough estimate)95791miles2024436
Age 18 P75 (rough estimate)149266miles2024436
Age 19 median (rough estimate)116786miles2024208
Age 19 P25 (rough estimate)90797miles2024208
Full table
Further values · 2024
MeasureValueUnitCompared withYearsTests
Age 19 P75 (rough estimate)145443miles2024208

Source: DVSA MOT bulk data · Window: 2024 · n = 1,157 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Does high mileage mean more Vauxhall Signum MOT failures at the same age?

At ages 15+, 32.6% of Vauxhall Signums with 40,000 to 70,000 miles failed first time, against 43.2% of those with over 140,000 miles (2024, n = 454). No clear mileage gap inside this age group, among cars still being tested.

bar · Vauxhall Signum · Age 15+, 40-70k miles (rough estimate: 95 tests, 95% interval 24–42.6%) · 32.6 vs baseline · 2024
DVSA MOT bulk data, 24 Sep 2026.
Vauxhall Signum: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Age 15+, 40-70k miles (rough estimate: 95 tests, 95% interval 24–42.6%)32.6% failed first time202495
Age 15+, 70-100k miles (rough estimate: 249 tests, 95% interval 32.7–44.7%)38.6% failed first time2024249
Age 15+, 100-140k miles (rough estimate: 419 tests, 95% interval 44.6–54.2%)49.4% failed first time2024419
Age 15+, 140k+ miles (rough estimate: 359 tests, 95% interval 38.2–48.3%)43.2% failed first time2024359

Source: DVSA MOT bulk data · Window: 2024 · n = 1,157 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

How many miles does a Vauxhall Signum last?

68.1% of Vauxhall Signums tested had reached 100,000 miles, and 21.1% had reached 150,000 (2024, n = 11,544).

line · Vauxhall Signum · 100,000 miles · 68.1 vs baseline · 2024
100,000 miles: 68.1. 200,000 miles (rou: 2.6. DVSA MOT bulk data, 24 Sep 2026.
Vauxhall Signum: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
100,000 miles68.1% of tested cars202411544
150,000 miles21.1% of tested cars20243568
200,000 miles (rough estimate: 447 tests, 95% interval 2.4–2.9%)2.6% of tested cars2024447

Source: DVSA MOT bulk data · Window: 2024 · n = 1,157 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Is the Vauxhall Signum driven more or less than average, and does that change the picture?

Matched on annual mileage as well as age, the Vauxhall Signum index is 103.8, against 108.3 on age alone (2019–2024, n = 1,157).

slope · Vauxhall Signum · Age and mileage adjusted index · 103.8 vs 108.3 · 2019–2024
Age and mileage adjusted index: 108.3 vs 103.8. DVSA MOT bulk data, 24 Sep 2026.
Vauxhall Signum: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Age and mileage adjusted index103.8index108.32019–20241157

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 1,157 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Which Vauxhall Signum engine is best?

No Vauxhall Signum 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 = 1,157).

bar · Vauxhall Signum · Petrol 1.5–1.8 litre (rough estimate: 1,354 tests, 95% interval 92.2–103.4) · 97.8 vs 100 = model average · 2024
DVSA MOT bulk data, 24 Sep 2026.
Vauxhall Signum: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Petrol 1.5–1.8 litre (rough estimate: 1,354 tests, 95% interval 92.2–103.4)97.8index vs model norm100 = model average20241354
Petrol over 2.0 litre (rough estimate: 3,687 tests, 95% interval 94.9–101.8)98.3index vs model norm100 = model average20243687
Diesel over 2.0 litre (rough estimate: 1,799 tests, 95% interval 94.5–104.3)99.4index vs model norm100 = model average20241799
Diesel 1.8–2.0 litre100.4index vs model norm100 = model average20249029
Petrol 1.8–2.0 litre (rough estimate: 1,124 tests, 95% interval 99.1–111.6)105.3index vs model norm100 = model average20241124

Source: DVSA MOT bulk data · Window: 2024 · n = 1,157 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Where in Britain does the Vauxhall Signum fail its MOT most?

Vauxhall Signum fails first-time MOTs most in Kirkcaldy (KY): 64.1% against 47.1% across Britain for this model, both 2019–2024 (2024, n = 103).

bar · Vauxhall Signum · Kirkcaldy (KY) (rough estimate: 103 tests, 95% interval 54.5–72.7%) · 64.1 vs 43.1 · 2024
DVSA MOT bulk data, 24 Sep 2026.
Vauxhall Signum: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Kirkcaldy (KY) (rough estimate: 103 tests, 95% interval 54.5–72.7%)64.1% fail first time43.12024103
Plymouth (PL) (rough estimate: 163 tests, 95% interval 53.1–67.9%)60.7% fail first time43.12024163
Shrewsbury (SY) (rough estimate: 168 tests, 95% interval 52.0–66.6%)59.5% fail first time43.12024168
Coventry (CV) (rough estimate: 243 tests, 95% interval 27.3–39.1%)32.9% fail first time43.12024243
Colchester (CO) (rough estimate: 111 tests, 95% interval 27.7–45.3%)36.0% fail first time43.12024111
Milton Keynes (MK) (rough estimate: 227 tests, 95% interval 30.2–42.6%)36.1% fail first time43.12024227
Swindon (SN) (rough estimate: 113 tests, 95% interval 50.1–67.9%)59.3% fail first time43.12024113
York (YO) (rough estimate: 130 tests, 95% interval 49.9–66.6%)58.5% fail first time43.12024130
Full table
Further values · 2024
MeasureValueUnitCompared withYearsTests
Nottingham (NG) (rough estimate: 468 tests, 95% interval 52.3–61.3%)56.8% fail first time43.12024468
Hull (HU) (rough estimate: 162 tests, 95% interval 49.1–64.2%)56.8% fail first time43.12024162
Aberdeen (AB) (rough estimate: 111 tests, 95% interval 46.6–64.7%)55.9% fail first time43.12024111
Exeter (EX) (rough estimate: 155 tests, 95% interval 47.6–63.1%)55.5% fail first time43.12024155
Newport (NP) (rough estimate: 155 tests, 95% interval 47.6–63.1%)55.5% fail first time43.12024155
Bristol (BS) (rough estimate: 241 tests, 95% interval 48.9–61.3%)55.2% fail first time43.12024241
Cardiff (CF) (rough estimate: 178 tests, 95% interval 47.7–62.2%)55.1% fail first time43.12024178
Bradford (BD) (rough estimate: 126 tests, 95% interval 46.1–63.2%)54.8% fail first time43.12024126
Northampton (NN) (rough estimate: 288 tests, 95% interval 48.7–60.2%)54.5% fail first time43.12024288
Swansea (SA) (rough estimate: 130 tests, 95% interval 44.5–61.4%)53.1% fail first time43.12024130
Truro (TR) (rough estimate: 134 tests, 95% interval 44.6–61.2%)53.0% fail first time43.12024134
Torquay (TQ) (rough estimate: 104 tests, 95% interval 43.4–62.2%)52.9% fail first time43.12024104
Taunton (TA) (rough estimate: 123 tests, 95% interval 44.1–61.5%)52.9% fail first time43.12024123
Norwich (NR) (rough estimate: 295 tests, 95% interval 46.8–58.2%)52.5% fail first time43.12024295
Preston (PR) (rough estimate: 151 tests, 95% interval 44.4–60.1%)52.3% fail first time43.12024151
Cleveland (TS) (rough estimate: 159 tests, 95% interval 44.5–59.8%)52.2% fail first time43.12024159
Lincoln (LN) (rough estimate: 364 tests, 95% interval 46.0–56.2%)51.1% fail first time43.12024364
Brighton (BN) (rough estimate: 163 tests, 95% interval 43.3–58.5%)50.9% fail first time43.12024163
Redhill (RH) (rough estimate: 112 tests, 95% interval 41.8–60.0%)50.9% fail first time43.12024112
Oldham (OL) (rough estimate: 128 tests, 95% interval 42.2–59.3%)50.8% fail first time43.12024128
Newcastle (NE) (rough estimate: 240 tests, 95% interval 44.1–56.7%)50.4% fail first time43.12024240
Southampton (SO) (rough estimate: 179 tests, 95% interval 43.0–57.5%)50.3% fail first time43.12024179
Guildford (GU) (rough estimate: 165 tests, 95% interval 41.6–56.7%)49.1% fail first time43.12024165
Worcester (WR) (rough estimate: 164 tests, 95% interval 41.2–56.4%)48.8% fail first time43.12024164
Medway (ME) (rough estimate: 155 tests, 95% interval 40.7–56.2%)48.4% fail first time43.12024155
Leeds (LS) (rough estimate: 209 tests, 95% interval 41.6–55.1%)48.3% fail first time43.12024209
Portsmouth (PO) (rough estimate: 257 tests, 95% interval 42.2–54.3%)48.3% fail first time43.12024257
Blackpool (FY) (rough estimate: 110 tests, 95% interval 39.1–57.4%)48.2% fail first time43.12024110
Liverpool (L) (rough estimate: 188 tests, 95% interval 40.8–55.0%)47.9% fail first time43.12024188
Tonbridge (TN) (rough estimate: 178 tests, 95% interval 40.5–55.1%)47.8% fail first time43.12024178
Stevenage (SG) (rough estimate: 118 tests, 95% interval 38.7–56.4%)47.5% fail first time43.12024118
Blackburn (BB) (rough estimate: 154 tests, 95% interval 39.7–55.3%)47.4% fail first time43.12024154
Gloucester (GL) (rough estimate: 188 tests, 95% interval 40.3–54.5%)47.3% fail first time43.12024188
Peterborough (PE)47.3% fail first time43.12024689
Stoke-on-Trent (ST) (rough estimate: 215 tests, 95% interval 40.4–53.6%)47.0% fail first time43.12024215
Manchester (M) (rough estimate: 237 tests, 95% interval 40.2–52.8%)46.4% fail first time43.12024237
Llandudno (LL) (rough estimate: 260 tests, 95% interval 40.2–52.2%)46.1% fail first time43.12024260
Oxford (OX) (rough estimate: 163 tests, 95% interval 38.5–53.7%)46.0% fail first time43.12024163
Ipswich (IP) (rough estimate: 224 tests, 95% interval 39.6–52.5%)46.0% fail first time43.12024224
Doncaster (DN) (rough estimate: 442 tests, 95% interval 40.7–49.9%)45.3% fail first time43.12024442
Edinburgh (EH) (rough estimate: 144 tests, 95% interval 37.2–53.3%)45.1% fail first time43.12024144
Reading (RG) (rough estimate: 223 tests, 95% interval 38.5–51.4%)44.8% fail first time43.12024223
Crewe (CW) (rough estimate: 120 tests, 95% interval 35.6–53.1%)44.2% fail first time43.12024120
Leicester (LE) (rough estimate: 321 tests, 95% interval 38.6–49.4%)43.9% fail first time43.12024321
Wakefield (WF) (rough estimate: 178 tests, 95% interval 36.7–51.2%)43.8% fail first time43.12024178
Sheffield (S) (rough estimate: 498 tests, 95% interval 39.5–48.2%)43.8% fail first time43.12024498
Warrington (WA) (rough estimate: 167 tests, 95% interval 36.4–51.3%)43.7% fail first time43.12024167
Chester (CH) (rough estimate: 406 tests, 95% interval 38.9–48.5%)43.6% fail first time43.12024406
Derby (DE) (rough estimate: 310 tests, 95% interval 38.1–49.1%)43.5% fail first time43.12024310
Birmingham (B)43.0% fail first time43.12024588
Bournemouth (BH) (rough estimate: 128 tests, 95% interval 34.7–51.6%)43.0% fail first time43.12024128
Hemel Hempstead (HP) (rough estimate: 106 tests, 95% interval 33.5–52.0%)42.5% fail first time43.12024106
Chelmsford (CM) (rough estimate: 166 tests, 95% interval 34.9–49.8%)42.2% fail first time43.12024166
Stockport (SK) (rough estimate: 159 tests, 95% interval 34.1–49.3%)41.5% fail first time43.12024159
Dudley (DY) (rough estimate: 209 tests, 95% interval 34.7–47.9%)41.1% fail first time43.12024209
Telford (TF) (rough estimate: 121 tests, 95% interval 31.4–48.6%)39.7% fail first time43.12024121
Walsall (WS) (rough estimate: 170 tests, 95% interval 31.3–45.7%)38.2% fail first time43.12024170
Wolverhampton (WV) (rough estimate: 153 tests, 95% interval 30.6–45.8%)37.9% fail first time43.12024153
Luton (LU) (rough estimate: 219 tests, 95% interval 30.9–43.6%)37.0% fail first time43.12024219
Southend-on-Sea (SS) (rough estimate: 161 tests, 95% interval 29.6–44.3%)36.6% fail first time43.12024161
Glasgow (G) (rough estimate: 141 tests, 95% interval 28.7–44.4%)36.2% fail first time43.12024141

Source: DVSA MOT bulk data · Window: 2024 · n = 1,157 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Does a Vauxhall Signum rust more than average?

Allowing for age, Vauxhall Signum MOTs record corrosion failures at 6.0 times the national rate: 4.55% of tests against 0.77% (2024 + geographic layers, n = 1,153).

Computed, not measured.

slope · Vauxhall Signum · Salt belt susceptibility · 6.0 vs 1 · 2024 + geographic layers
Salt belt susceptibility: 1 vs 6. DVSA MOT bulk data, 24 Sep 2026.
Vauxhall Signum: the numbers behind this answer (2024 + geographic layers)
MeasureValueUnitCompared withYearsTests
Salt belt susceptibility6.0ratio estimate12024 + geographic layers1153

Source: DVSA MOT bulk data · Window: 2024 + geographic layers · n = 1,157 (initial tests) · Method: computed estimate, not measured · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Is a Vauxhall Signum ULEZ compliant?

An estimated 18.5% of Vauxhall Signums 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 · Vauxhall Signum · Likely compliant · 18.5 vs baseline · 2024
DVSA MOT bulk data, 24 Sep 2026.
Vauxhall Signum: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Likely compliant18.5% estimate20241157

Source: DVSA MOT bulk data · Window: 2024 · n = 1,157 (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 Vauxhall Signum?

Of failed Vauxhall Signum MOTs, 29.9% were retested the same day and a further 64.5% within 10 days; the median failed car passed its retest after 1 day (2019–2024, n = 5,972).

bar · Vauxhall Signum · Same-day retest · 29.9 vs failed initial tests · 2019–2024
DVSA MOT bulk data, 24 Sep 2026.
Vauxhall Signum: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Same-day retest29.9%failed initial tests2019–20245972
Retest within 10 days64.5%failed initial tests2019–20245972
Clean MOT streak13.5%observed chains2019–20242897
Repeat advisory47.1%observed chains2019–20242897
Decreasing odometer1.4% mileage anomalyobserved chains2019–20243902

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 1,157 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Is low mileage better for a Vauxhall Signum?

Vauxhall Signums aged 12 to 14 doing under 5,000 miles a year failed first time in 33.5% of tests, against 49.8% for those doing 8,000 to 12,000 miles (2019–2024, n = 535).

bullet · Vauxhall Signum · Low-use first-time failure · 33.5 vs 49.8 · 2019–2024
Low-use first-time failure: 33.5 vs 49.8. DVSA MOT bulk data, 24 Sep 2026.
Vauxhall Signum: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Low-use first-time failure33.5%49.82019–2024535
Low-use gap-16.3percentage points8–12k miles2019–2024535

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 1,157 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

If a Vauxhall Signum fails, does it fail again?

42.5% of Vauxhall Signums that failed an MOT failed the next one too, against 39% after a pass (2019–2024, n = 1,166). The failure most likely to come back is ‘body, chassis, structure’: 44.7% of those fails recurred at the next MOT.

bullet · Vauxhall Signum · Repeat after fail · 42.5 vs 39 · 2019–2024
Repeat after fail: 42.5 vs 39. DVSA MOT bulk data, 24 Sep 2026.
Vauxhall Signum: the numbers behind this answer (2019–2024)
MeasureValueUnitCompared withYearsTests
Repeat after fail42.5%392019–20241166

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 1,157 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Which Vauxhall Signum faults come together?

On Vauxhall Signums, ‘noise, emissions and leaks’ and road Wheels failures turn up together 4.0 times as often as chance would predict (2024, n = 31).

Vauxhall Signum: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Noise, emissions and leaks + Road Wheels (rough estimate: 31 tests, 95% interval 2.7–5.6)4.0liftexpected joint rate202431
Identification of the vehicle + Visibility (rough estimate: 42 tests, 95% interval 2.1–4.0)2.9liftexpected joint rate202442
Identification of the vehicle + Noise, emissions and leaks (rough estimate: 28 tests, 95% interval 1.9–4.1)2.8liftexpected joint rate202428
Seat belts and supplementary restraint systems + Tyres (rough estimate: 64 tests, 95% interval 2.2–3.6)2.8liftexpected joint rate202464
Noise, emissions and leaks + Steering (rough estimate: 99 tests, 95% interval 2.3–3.4)2.8liftexpected joint rate202499
Seat belts and supplementary restraint systems + Visibility (rough estimate: 68 tests, 95% interval 2.2–3.5)2.8liftexpected joint rate202468
Identification of the vehicle + Tyres (rough estimate: 37 tests, 95% interval 1.9–3.8)2.8liftexpected joint rate202437
Body, chassis, structure + Road Wheels (rough estimate: 39 tests, 95% interval 1.9–3.7)2.7liftexpected joint rate202439
Full table
Further values · 2024
MeasureValueUnitCompared withYearsTests
Steering + Tyres (rough estimate: 126 tests, 95% interval 2.2–3.1)2.6liftexpected joint rate2024126
Identification of the vehicle + Lamps, reflectors and electrical equipment (rough estimate: 81 tests, 95% interval 2.1–3.3)2.6liftexpected joint rate202481
Brakes + Identification of the vehicle (rough estimate: 59 tests, 95% interval 2.0–3.4)2.6liftexpected joint rate202459
Brakes + Road Wheels (rough estimate: 46 tests, 95% interval 1.9–3.5)2.6liftexpected joint rate202446
Road Wheels + Suspension (rough estimate: 59 tests, 95% interval 2.0–3.3)2.6liftexpected joint rate202459
Body, chassis, structure + Noise, emissions and leaks (rough estimate: 487 tests, 95% interval 2.3–2.8)2.5liftexpected joint rate2024487
Noise, emissions and leaks + Seat belts and supplementary restraint systems (rough estimate: 43 tests, 95% interval 1.8–3.4)2.5liftexpected joint rate202443
Lamps, reflectors and electrical equipment + Seat belts and supplementary restraint systems (rough estimate: 131 tests, 95% interval 2.1–3.0)2.5liftexpected joint rate2024131
Noise, emissions and leaks + Tyres (rough estimate: 343 tests, 95% interval 2.2–2.7)2.4liftexpected joint rate2024343
Brakes + Noise, emissions and leaks2.4liftexpected joint rate2024574
Brakes + Steering (rough estimate: 196 tests, 95% interval 2.1–2.8)2.4liftexpected joint rate2024196
Lamps, reflectors and electrical equipment + Noise, emissions and leaks2.3liftexpected joint rate2024749
Identification of the vehicle + Suspension (rough estimate: 66 tests, 95% interval 1.8–2.9)2.3liftexpected joint rate202466
Brakes + Seat belts and supplementary restraint systems (rough estimate: 87 tests, 95% interval 1.8–2.8)2.3liftexpected joint rate202487
Lamps, reflectors and electrical equipment + Steering (rough estimate: 247 tests, 95% interval 2.0–2.5)2.3liftexpected joint rate2024247
Body, chassis, structure + Steering (rough estimate: 147 tests, 95% interval 1.9–2.6)2.3liftexpected joint rate2024147
Seat belts and supplementary restraint systems + Suspension (rough estimate: 110 tests, 95% interval 1.8–2.7)2.2liftexpected joint rate2024110
Lamps, reflectors and electrical equipment + Road Wheels (rough estimate: 53 tests, 95% interval 1.6–2.9)2.2liftexpected joint rate202453
Steering + Suspension (rough estimate: 226 tests, 95% interval 1.9–2.5)2.2liftexpected joint rate2024226
Body, chassis, structure + Seat belts and supplementary restraint systems (rough estimate: 67 tests, 95% interval 1.7–2.7)2.1liftexpected joint rate202467
Noise, emissions and leaks + Visibility (rough estimate: 314 tests, 95% interval 1.9–2.3)2.1liftexpected joint rate2024314
Road Wheels + Tyres (rough estimate: 22 tests, 95% interval 1.3–3.2)2.1liftexpected joint rate202422
Body, chassis, structure + Brakes2.1liftexpected joint rate2024897
Brakes + Tyres2.1liftexpected joint rate2024660
Brakes + Suspension2.1liftexpected joint rate20241429
Noise, emissions and leaks + Suspension2.1liftexpected joint rate2024631
Tyres + Visibility (rough estimate: 412 tests, 95% interval 1.9–2.3)2.0liftexpected joint rate2024412
Brakes + Lamps, reflectors and electrical equipment2.0liftexpected joint rate20241481
Lamps, reflectors and electrical equipment + Visibility2.0liftexpected joint rate2024937
Steering + Visibility (rough estimate: 102 tests, 95% interval 1.6–2.4)2.0liftexpected joint rate2024102
Body, chassis, structure + Identification of the vehicle (rough estimate: 36 tests, 95% interval 1.4–2.7)2.0liftexpected joint rate202436
Lamps, reflectors and electrical equipment + Tyres2.0liftexpected joint rate2024847
Suspension + Tyres1.9liftexpected joint rate2024788
Body, chassis, structure + Lamps, reflectors and electrical equipment1.9liftexpected joint rate20241119
Body, chassis, structure + Suspension1.9liftexpected joint rate20241066
Body, chassis, structure + Tyres (rough estimate: 479 tests, 95% interval 1.7–2.0)1.9liftexpected joint rate2024479
Brakes + Visibility1.8liftexpected joint rate2024627
Lamps, reflectors and electrical equipment + Suspension1.8liftexpected joint rate20241680
Road Wheels + Visibility (rough estimate: 20 tests, 95% interval 1.1–2.7)1.8liftexpected joint rate202420
Suspension + Visibility1.8liftexpected joint rate2024771
Body, chassis, structure + Visibility (rough estimate: 484 tests, 95% interval 1.6–1.9)1.8liftexpected joint rate2024484
Brakes + Speedometer and speed limiter (seen together; too few for a multiplier)14tests with both202414
Lamps, reflectors and electrical equipment + Speedometer and speed limiter (seen together; too few for a multiplier)14tests with both202414
Seat belts and supplementary restraint systems + Steering (seen together; too few for a multiplier)13tests with both202413
Identification of the vehicle + Steering (seen together; too few for a multiplier)12tests with both202412
Road Wheels + Steering (seen together; too few for a multiplier)10tests with both202410
Road Wheels + Seat belts and supplementary restraint systems (seen together; too few for a multiplier)7tests with both20247
Speedometer and speed limiter + Visibility (seen together; too few for a multiplier)5tests with both20245

Source: DVSA MOT bulk data · Window: 2024 · n = 1,157 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Has the Vauxhall Signum had safety recalls?

DVSA lists 4 safety recall campaigns matched to the Vauxhall Signum; check whether yours has been fixed, using its registration number.

Vauxhall Signum: the numbers behind this answer (DVSA register)
MeasureValueUnitCompared withYearsTests
DVSA recall campaigns matched4campaignsDVSA registerDVSA register1157

Source: DVSA register; recall effect covers 11 of 761 models · Window: DVSA register · n = 1,157 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

What does a Vauxhall Signum cost to run in a fleet?

Of every 100 Vauxhall Signums tested at age 17, about 46 failed the MOT first time (rough estimate); at age 19, about 40 (rough estimate). These are one-year rates for different cars tested in the same year, not a fleet followed over time (2024).

Vauxhall Signum: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
Age 17 (rough estimate: 269 tests, 95% interval 39.9–51.7%)45.7% fail first time2024269
Age 18 (rough estimate: 436 tests, 95% interval 35.6–44.8%)40.1% fail first time2024436
Age 19 (rough estimate: 208 tests, 95% interval 34.0–47.2%)40.4% fail first time2024208

Source: DVSA MOT bulk data · Window: 2024 · n = 1,157 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

Does the month of a Vauxhall Signum MOT matter?

Vauxhall Signums fail first time most in July (51.2%, against 29.3% for all cars that month) and least in August (43.5%) (2024, n = 1,157).

line · Vauxhall Signum · January · 49.0 vs 31.1 · 2024
January: 49.0. December: 43.7. DVSA MOT bulk data, 24 Sep 2026.
Vauxhall Signum: the numbers behind this answer (2024)
MeasureValueUnitCompared withYearsTests
January49.0% fail first time31.120241819
February48% fail first time30.020241498
March46.8% fail first time28.320241789
April47.1% fail first time29.820241061
May49% fail first time28.820241055
June49.0% fail first time28.120241139
July51.2% fail first time29.320241168
August43.5% fail first time29.220241343
Full table
Further values · 2024
MeasureValueUnitCompared withYearsTests
September46.2% fail first time28.220241597
October47.1% fail first time30.320241813
November45.3% fail first time30.620241630
December43.7% fail first time29.320241116

Source: DVSA MOT bulk data · Window: 2024 · n = 1,157 (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 Vauxhall Signum compare with cars of the same age?

not computed for this model: no qualifying records. 1,157 initial Vauxhall Signum tests are in the published model cohort.

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 1,157 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

See the Volkswagen Bora, a car of the same inspection class with 4.6× the tests · Check your car by registration

What have dealers been told about the Vauxhall Signum? (US market)

layer not yet computed for this model (covers 211 of 761 models). 1,157 initial Vauxhall Signum tests are in the published model cohort.

Source: NHTSA, US market; covers 211 of 761 models · Window: NHTSA · n = 1,157 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

See the Volkswagen Bora, a car of the same inspection class with 4.6× the tests · Check your car by registration

Does the Vauxhall Signum fail inspections in other countries too?

no match in the other-country inspection register. 1,157 initial Vauxhall Signum 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 = 1,157 (initial tests) · Method: one initial test per test_id · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

See the Volkswagen Bora, a car of the same inspection class with 4.6× 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). 1,157 initial Vauxhall Signum tests are in the published model cohort.

Source: European Commission OBFCM; covers 19 of 761 models · Window: 2021+ cohorts · n = 1,157 (initial tests) · Method: computed estimate, not measured · Updated: 24 Sep 2026 · Release: dvsa-2024-v2 · CSV

See the Volkswagen Bora, a car of the same inspection class with 4.6× the tests · Check your car by registration

How to cite this page

MOT Risk Index (2026). Vauxhall Signum 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/vauxhall-signum/

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

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Vauxhall Signum MOT: quick answers

What is the Vauxhall Signum first-time MOT pass rate?

56.9% of first attempts passed in 2024 (1,157 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 1,157 primary tests: 43.13% failed first time and 62.4% passed when cars fixed at the test centre (PRS) count as passes. The age-adjusted MOT Risk Index 100.2 is shown separately.