Make overview
Mercedes-Benz MOT pass rates by model
Data updated
Quick answer
Mercedes-Benz cars pass 77.1% of MOT tests across 1,726,066 recorded tests, against a national average of 72.3%. Of the 47 Mercedes-Benz models with MOT data, the GLE has the highest age-adjusted pass rate at 87.6% and the Citan the lowest at 65.2%. The item recorded most often on a failed Mercedes-Benz is tyre tread depth not in accordance with the requirements.
- Tests analysed
- 1,726,066
- Adjusted pass rate
- 76.7%
- Models with data
- 47
Adjusted for age and mileage
Mercedes-Benz models ranked by pass rate
| Model | Adjusted pass rate | National rank | Tests |
|---|---|---|---|
| Mercedes-Benz GLE | 87.6% | 11 of 262 | 33,876 |
| Mercedes-Benz GLC | 85.9% | 14 of 262 | 84,268 |
| Mercedes-Benz S-Class | 84.7% | 21 of 262 | 25,269 |
| Mercedes-Benz SL | 84.1% | 26 of 262 | 20,815 |
| Mercedes-Benz GLA | 82.3% | 35 of 262 | 91,940 |
| Mercedes-Benz CLA | 78.6% | 67 of 262 | 76,197 |
| Mercedes-Benz E-Class | 78.5% | 69 of 262 | 230,225 |
| Mercedes-Benz V-Class | 77.4% | 80 of 262 | 13,442 |
| Mercedes-Benz C-Class | 77.0% | 86 of 262 | 358,975 |
| Mercedes-Benz CLS | 76.4% | 93 of 262 | 22,073 |
| Mercedes-Benz Sprinter | 75.6% | 99 of 262 | 24,345 |
| Mercedes-Benz B-Class | 73.3% | 130 of 262 | 70,795 |
| Mercedes-Benz A-Class | 73.3% | 131 of 262 | 365,510 |
| Mercedes-Benz Vito | 71.0% | 161 of 262 | 85,285 |
| Mercedes-Benz SLK | 69.3% | 178 of 262 | 54,151 |
| Mercedes-Benz Citan | 65.2% | 221 of 262 | 19,945 |
Unadjusted, not ranked
Other Mercedes-Benz models with MOT data
These models have at least 500 recorded tests, but their tested examples do not span enough ages and mileages to rank fairly. Their failure and advisory patterns are still drawn from real tests.
| Model | Unadjusted pass rate | Tests |
|---|---|---|
| Mercedes-Benz ML | 72.2% | 29,100 |
| Mercedes-Benz CLK | 63.1% | 25,027 |
| Mercedes-Benz Eqc | 83.6% | 12,524 |
| Mercedes-Benz GLB | 90.0% | 12,283 |
| Mercedes-Benz Eqa | 89.6% | 9,845 |
| Mercedes-Benz SLC | 85.1% | 8,979 |
| Mercedes-Benz Clc | 55.8% | 7,925 |
| Mercedes-Benz Viano | 65.6% | 4,999 |
| Mercedes-Benz X-Class | 81.1% | 3,681 |
| Mercedes-Benz G-Class | 87.3% | 3,477 |
| Mercedes-Benz GL | 82.0% | 3,439 |
| Mercedes-Benz Eqb | 85.3% | 3,194 |
| Mercedes-Benz CL | 78.9% | 2,859 |
| Mercedes-Benz 300 | 78.2% | 2,635 |
| Mercedes-Benz 190 | 72.2% | 2,521 |
| Mercedes-Benz Eqe | 94.2% | 2,343 |
| Mercedes-Benz GLS | 86.8% | 1,896 |
| Mercedes-Benz R-Class | 72.3% | 1,730 |
| Mercedes-Benz GT | 92.6% | 1,372 |
| Mercedes-Benz Eqv | 87.8% | 1,219 |
| Mercedes-Benz Eqs | 90.6% | 1,020 |
| Mercedes-Benz 500 | 82.4% | 904 |
| Mercedes-Benz Evito | 86.0% | 795 |
| Mercedes-Benz Hymer | 81.2% | 786 |
| Mercedes-Benz 220 | 73.3% | 765 |
| Mercedes-Benz 280 | 80.1% | 733 |
| Mercedes-Benz 230 | 76.3% | 700 |
| Mercedes-Benz 420 | 80.3% | 573 |
| Mercedes-Benz C200 | 85.2% | 566 |
| Mercedes-Benz Motorhome | 72.0% | 547 |
| Mercedes-Benz 200 | 74.7% | 518 |
Across the range
What Mercedes-Benz cars fail on most
Share of failed Mercedes-Benz tests recording each item, summed across every model above.
- 1.Tyre tread depth not in accordance with the requirements15.5%
- 2.A spring or spring component fractured or seriously weakened14.5%
- 3.A suspension pin, bush or joint excessively worn13.2%
- 4.A tyre seriously damaged10.2%
- 5.A tyre cords visible or damaged10.0%
Tyre ply or cord exposed, or the casing separating explained
- 6.a brake lining or pad worn below 1.5mm7.8%
Common questions
- What is the MOT pass rate for Mercedes-Benz?
- Across 1,726,066 recorded MOT tests, 77.1% of Mercedes-Benz tests ended in a pass, against a national average of 72.3%. Adjusted for the age and mileage of the cars tested, the figure is 76.7%. A make-level figure blends very different cars, so the individual model pages are the more useful comparison.
- Which Mercedes-Benz is the most reliable on MOT evidence?
- Of the Mercedes-Benz models with enough data to compare fairly, the GLE has the highest age-and-mileage-adjusted pass rate at 87.6%, ranking 11 of 262 models nationally. This reflects how often cars meet the MOT standard, not how often they break down.
- What do Mercedes-Benz cars most often fail their MOT on?
- The most commonly recorded failure item across Mercedes-Benz tests is "Tyre tread depth not in accordance with the requirements", appearing in 15.5% of failed tests. One failed test can list several items, so these shares do not add up to 100%.
- Why do some Mercedes-Benz models not have a pass rate ranking?
- A model is only ranked when its tested examples cover a wide enough spread of ages and mileages for a fair comparison. 16 of the 47 Mercedes-Benz models here qualify. For the rest we publish the unadjusted rate and the failure patterns, but not a rank, because comparing unadjusted rates mostly sorts cars by how new they are.
How to read these figures
Why the adjusted rate is the fair one
An unadjusted pass rate is strongly driven by the age and mileage of the cars being tested, not by how well they were built. A model bought mainly as a lightly used second car will look better than an identical car sold to high-mileage drivers. Adjusting for age and mileage compares each model against cars that have lived a similar life.
For a specific car, its own record beats any model average — check that vehicle’s MOT history and read what testers actually recorded against it.
Check any vehicle's MOT history
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