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Common problems by part

Mercedes-Benz GLB suspension problems

DVSA MOT tests 2022–2025 · 12,047 MOT tests · Updated

At 3 years, 0.4 in 100 MOT tests of the Mercedes-Benz GLB failed on suspension, against 0.6 for all class 4 vehicles the same age (all test years; 12,047 MOT tests) [1].

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  • Against all class 4 vehicles the same age: about average for all class 4 vehicles the same age (all test years), 43 MOT tests with a fail
  • By age: seen at 3 ages from 3 to 5 years, 21,415 MOT tests
  • MOT tests at 3 years: 12,047 for the Mercedes-Benz GLB

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

What the MOT tests show

What we know

0.4 fails per 100 MOT tests at 3 years, against 0.6 for all class 4 vehicles tested at 3 (all test years). That is about average.

Why it matters

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

What to check

Push down hard on each corner: it should rise once and settle. Listen for knocks over speed bumps and look behind each wheel for snapped springs or split rubber bushes.

Mercedes-Benz GLB suspension fails by age

Mercedes-Benz GLB suspension fails per 100 MOT tests by ageSolid line: the Mercedes-Benz GLB. Dashed line: all cars the same age. The table below lists every value.00.511.53 years: 0.4 per 100 (all cars 0.6), 12,047 MOT tests34 years: 0.6 per 100 (all cars 0.9), 6,756 MOT tests45 years: 0.8 per 100 (all cars 1.6), 2,612 MOT tests5
Fails per 100 MOT tests by age, all first-use years pooled. Mercedes-Benz GLB All class 4 vehicles the same age
AgeMOT testsFails per 100All class 4 vehicles the same age
312,0470.40.6
46,7560.60.9
52,6120.81.6

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

What fails in the suspension at 3 years

Advisories (not fails)

Replace anti-roll bar link or joint cost

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How to check on a test drive

Push down hard on each corner: it should rise once and settle. Listen for knocks over speed bumps and look behind each wheel for snapped springs or split rubber bushes.

The most common advisory here in MOT records: Linkage ball joints: ball joint has slight play.

Check one Mercedes-Benz GLB, not the average

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

Other Mercedes-Benz GLB problems

Suspension on rival models

Questions people ask

Does the Mercedes-Benz GLB have more suspension problems than other cars?

0.4 in 100 MOT tests at 3 years, against 0.6 for all class 4 vehicles the same age: about average by our test (all test years; 12,047 MOT tests).

How common are Mercedes-Benz GLB suspension problems?

0.4 in 100 MOT tests at 3 years failed on suspension, against 0.6 for all class 4 vehicles the same age (all test years; 12,047 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, 21,415 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