607 first-attempt MOT failures were recorded on the 2022 Mercedes-Benz Glc in 2025. The items recorded most often on them were Tyres — Condition (front) and Tread depth (rear). Figures are among first-attempt failed MOT tests, not among all tests.
First-attempt pass
90.8%
of 6,564 first tests (2025)
First tests
6,564
test year 2025
Failed first attempts
607
failed first-attempt tests
Most common fail
31.6%
Tyres — Condition (front)
First-attempt and official-style rates among class 4 first tests of the year.
First-attempt pass
90.8%
of 6,564 first tests (2025)
Official-style pass
92.3%
incl. same-day PRS fixes
First tests
6,564
class 4 · first MOT of the year
Typical age 3.0 yrs · median mileage 26,804 mi
vs 2024: -3.1 pp first-attempt
Note:
Usage and mileage effects that often track road use rather than model design.
These patterns look like wear or usage effects rather than model-specific design faults. Tyres, brake friction material, and alignment-related defects often track mileage and road use.
| Pattern | Location | Failures | vs similar cars | Share of fails | Confidence |
|---|---|---|---|---|---|
|
Tread depth (rear)
Tyres > Tread depth
|
Rear | 58 | ×2.8 | 9.6% | Wear |
What this year's MOT record means for the decision in front of you.
On this year, prefer the petrol. The other-fuel cars passed first time 4.4 pp less often, on 388 tests.
Newer cars always pass more often, so a plain "best year" list would just rank by age. These are the years that beat or miss the trend their own neighbouring years set — the only age-adjusted signal this data supports.
| Year | vs the years either side | First-attempt pass (rises with newer cars) | First tests |
|---|---|---|---|
| 2020 Glc | +1.2 pp better | 89.7% | 10,628 |
| 2018 Glc | -1.2 pp worse | 84.0% | 18,085 |
The items that failed 2022 Glcs most often, as a share of the year's failed first attempts. This is what goes wrong, not what is unusual — the table further up the page covers that.
Every figure here is a first-attempt MOT rate from DVSA open data for this model line. MOTs do not test engine or gearbox internals, so this is a pre-purchase checklist, not a full reliability score.
Short answers about how to read this model-year guide.
How this page is built and what it can (and can't) say.
These figures come from UK MOT open data for this model year. We surface common failure patterns against similar cars — not a full reliability score, and not a pass/fail verdict on any individual vehicle.
UK Class 4 cars only. Normal MOT tests (not retests); first test per vehicle per calendar year; results pass, PRS, or fail.
PRS means the car failed items that were fixed at the test station and then passed the same day. We count PRS as a first-attempt fail in headline rates so same-day repairs do not hide problems.
We compare this model year with other Class 4 cars of similar age and mileage in the same test year. This model family is left out of the peer group so the car is not measured against itself.
Contains public sector information licensed under the Open Government Licence v3.0.
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