Buying Report · £14.99
Tools

Common problems by part

Mercedes-Benz V-Class lights and electrics problems

DVSA MOT tests 2022–2025 · 9,409 MOT tests · Updated

At 6 years, 1.5 in 100 MOT tests of the Mercedes-Benz V-Class failed on lights and electrics, against 4.7 for all class 4 vehicles the same age (all test years; 9,409 MOT tests) [1].

Buying Report £14.99 incl. VAT · one car · no subscription · Not a mechanical inspection.

  • Against all class 4 vehicles the same age: fails less often than all class 4 vehicles the same age (0.3–0.4×) (all test years), 137 MOT tests with a fail
  • By age: seen at 8 ages from 3 to 10 years, 46,317 MOT tests
  • Most common fail: Headlamp aim: too low, 0.4 per 100 MOT tests

Figures are for the model as a whole, not for one car.

What the MOT tests show

What we know

1.5 fails per 100 MOT tests at 6 years, against 4.7 for all class 4 vehicles tested at 6 (all test years). The Mercedes-Benz V-Class fails less often here.

Why it matters

A lights and electrics fail stops the car passing until it is fixed; the most common one is rated major by DVSA.

What to check

Walk round with the lights, indicators, brake lights and hazards on (ask someone to press the pedal) and check every dashboard warning light goes out after starting.

The Mercedes-Benz V-Class is a commercial or van-based vehicle: it is compared with all class 4 vehicles, cars and vans together, so part of any difference can come from how vans are used.

Mercedes-Benz V-Class lights and electrics fails by age

Mercedes-Benz V-Class lights and electrics fails per 100 MOT tests by ageSolid line: the Mercedes-Benz V-Class. Dashed line: all cars the same age. The table below lists every value.05103 years: 1.4 per 100 (all cars 2.9), 5,054 MOT tests34 years: 1.1 per 100 (all cars 3.1), 7,003 MOT tests45 years: 1.3 per 100 (all cars 3.7), 8,703 MOT tests56 years: 1.5 per 100 (all cars 4.7), 9,409 MOT tests67 years: 1.9 per 100 (all cars 5.8), 7,460 MOT tests78 years: 2.4 per 100 (all cars 7.3), 4,990 MOT tests89 years: 3.2 per 100 (all cars 9.2), 2,670 MOT tests910 years: 1.6 per 100 (all cars 11.2), 1,028 MOT tests10
Fails per 100 MOT tests by age, all first-use years pooled. Mercedes-Benz V-Class All class 4 vehicles the same age
AgeMOT testsFails per 100All class 4 vehicles the same age
35,0541.42.9
47,0031.13.1
58,7031.33.7
69,4091.54.7
77,4601.95.8
84,9902.47.3
92,6703.29.2
101,0281.611.2

All first-use years of the Mercedes-Benz V-Class pooled at each age, against all class 4 vehicles at that age over all 2022–2025 test years.

What fails in the lights and electrics at 6 years

Fails

  • Headlamp aim: too low: 0.4 fails per 100 MOT tests, all class 4 vehicles 0.8. Adjust headlamp aim: estimated £16–£39 (0.2–0.5 h at £78/h (ONS local-garage repair quotes, 1,058 quotes from 65 garages, Sep 2025 to Aug 2026) + parts) Headlamp aim too low MOT fail
  • Headlight aimed too high: 0.3 fails per 100 MOT tests, all class 4 vehicles 0.6. Adjust headlamp aim: estimated £16–£39 (0.2–0.5 h at £78/h (ONS local-garage repair quotes, 1,058 quotes from 65 garages, Sep 2025 to Aug 2026) + parts) Headlamp aim too high MOT fail

Advisories (not fails)

Adjust headlamp aim cost

Repair figures are estimates, not quotes: how we estimate repair costs.

Buying a Mercedes-Benz V-Class? Check that exact car before the viewing.

Buying Report £14.99 incl. VAT · one car · no subscription · Not a mechanical inspection.

  • Model risks for this year and fuel
  • What similar cars did at their next MOT
  • Repairs ahead
  • Viewing checklist

See a sample report

How to check on a test drive

Walk round with the lights, indicators, brake lights and hazards on (ask someone to press the pedal) and check every dashboard warning light goes out after starting.

The most common advisory here in MOT records: Registration plate lamp(s): inoperative in the case of multiple lamps or light sources.

Check one Mercedes-Benz V-Class, not the average

The figures here describe Mercedes-Benz V-Class cars as a group. These free tools answer for one car. Each line says what the tool reads.

Other Mercedes-Benz V-Class problems

Lights and electrics on rival models

Questions people ask

Does the Mercedes-Benz V-Class have more lights and electrics problems than other cars?

0.3 to 0.4 times the lights and electrics fail rate of all class 4 vehicles the same age at 6 years (all test years), from 9,409 MOT tests. The interval is clear of 0.8 in the same direction at 4 of the 8 ages seen (ages up to 18 with at least 100 MOT tests with a fail).

How common are Mercedes-Benz V-Class lights and electrics problems?

1.5 in 100 MOT tests at 6 years failed on lights and electrics, against 4.7 for all class 4 vehicles the same age (all test years; 9,409 MOT tests).

What is the most common Mercedes-Benz V-Class lights and electrics fail?

0.4 in 100 MOT tests at 6 years: Headlamp aim: too low (40 MOT tests with it).

Sources

  1. Driver and Vehicle Standards Agency, Anonymised MOT tests and results, 2022 to 2025. DVSA MOT data, Open Government Licence v3.0, 46,317 MOT tests. Accessed 7 Oct 2026.
  2. Office for National Statistics, Consumer price inflation, local price quotes (car repair items). ONS price quotes, series 610236. Accessed 7 Oct 2026.

Parts: against all class 4 vehicles at the same age, all 2022–2025 test years pooled, not adjusted for mileage. Breakdowns and non-MOT faults are not in this data. How we compare