Buying Report · £14.99
Tools

Common problems by part

Mercedes-Benz B-Class steering problems

DVSA MOT tests 2022–2025 · 27,268 MOT tests · Updated

At 10 years, 0.1 in 100 MOT tests of the Mercedes-Benz B-Class failed on steering, against 2.1 for all class 4 vehicles the same age (all test years; 27,268 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: about average for all class 4 vehicles the same age (all test years), 37 MOT tests with a fail
  • By age: seen at 17 ages from 3 to 19 years, 290,232 MOT tests
  • MOT tests at 10 years: 27,268 for the Mercedes-Benz B-Class

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

What the MOT tests show

What we know

0.1 fails per 100 MOT tests at 10 years, against 2.1 for all class 4 vehicles tested at 10 (all test years). That is about average.

Why it matters

A steering fail stops the car passing until it is fixed.

What to check

With the engine running, turn the wheel lock to lock: listen for knocks or groans and feel for play at the straight-ahead position. On the drive the car should not wander.

Mercedes-Benz B-Class steering fails by age

Mercedes-Benz B-Class steering fails per 100 MOT tests by ageSolid line: the Mercedes-Benz B-Class. Dashed line: all cars the same age. The table below lists every value.0243 years: 0.0 per 100 (all cars 0.1), 10,576 MOT tests34 years: 0.0 per 100 (all cars 0.2), 13,190 MOT tests5 years: 0.0 per 100 (all cars 0.3), 16,988 MOT tests56 years: 0.0 per 100 (all cars 0.5), 19,508 MOT tests7 years: 0.1 per 100 (all cars 0.8), 20,864 MOT tests78 years: 0.1 per 100 (all cars 1.2), 25,189 MOT tests9 years: 0.1 per 100 (all cars 1.8), 26,796 MOT tests910 years: 0.1 per 100 (all cars 2.1), 27,268 MOT tests11 years: 0.2 per 100 (all cars 2.5), 25,350 MOT tests1112 years: 0.4 per 100 (all cars 2.8), 21,871 MOT tests13 years: 0.7 per 100 (all cars 2.9), 19,379 MOT tests1314 years: 0.9 per 100 (all cars 3.2), 17,229 MOT tests15 years: 1.0 per 100 (all cars 3.3), 16,318 MOT tests1516 years: 1.3 per 100 (all cars 3.4), 13,766 MOT tests17 years: 1.4 per 100 (all cars 3.6), 8,986 MOT tests1718 years: 1.5 per 100 (all cars 3.9), 4,909 MOT tests19 years: 1.0 per 100 (all cars 4.1), 2,045 MOT tests19
Fails per 100 MOT tests by age, all first-use years pooled. Mercedes-Benz B-Class All class 4 vehicles the same age Shaded: over 18 years, survivors only.
AgeMOT testsFails per 100All class 4 vehicles the same age
310,5760.00.1
413,1900.00.2
516,9880.00.3
619,5080.00.5
720,8640.10.8
825,1890.11.2
926,7960.11.8
1027,2680.12.1
1125,3500.22.5
1221,8710.42.8
1319,3790.72.9
1417,2290.93.2
1516,3181.03.3
1613,7661.33.4
178,9861.43.6
184,9091.53.9
19*2,0451.04.1

All first-use years of the Mercedes-Benz B-Class pooled at each age, against all class 4 vehicles at that age over all 2022–2025 test years. * Only survivors are still tested at this age.

What fails in the steering at 10 years

Advisories (not fails)

Buying a Mercedes-Benz B-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

By engine and fuel

  • 1.5 diesel: 0.1 per 100 at 10 years, about average for diesel class 4 vehicles the same age (all test years; 8,654 MOT tests)
  • 2.0 diesel: 0.8 per 100 at 14 years, about average for diesel class 4 vehicles the same age (all test years; 8,429 MOT tests)

How to check on a test drive

With the engine running, turn the wheel lock to lock: listen for knocks or groans and feel for play at the straight-ahead position. On the drive the car should not wander.

The most common advisory here in MOT records: Play in steering rack inner joint(s).

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

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

Other Mercedes-Benz B-Class problems

Steering on rival models

Questions people ask

Does the Mercedes-Benz B-Class have more steering problems than other cars?

0.1 in 100 MOT tests at 10 years, against 2.1 for all class 4 vehicles the same age: about average by our test (all test years; 27,268 MOT tests).

How common are Mercedes-Benz B-Class steering problems?

0.1 in 100 MOT tests at 10 years failed on steering, against 2.1 for all class 4 vehicles the same age (all test years; 27,268 MOT tests).

Sources

  1. Driver and Vehicle Standards Agency, Anonymised MOT tests and results, 2022 to 2025. DVSA MOT data, Open Government Licence v3.0, 290,232 MOT tests. 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