Mercedes-Benz MOT Failure Rates
MOT failure rates for 18 Mercedes-Benz models, ranked from highest to lowest failure rate. The checked-in dataset contains 148,509,908 recorded DVSA MOT tests.
Mercedes-Benz Recorded MOT Overview
Across 18 included model groups, Mercedes-Benz has a sample-size-weighted historical MOT failure rate of 21.9% from 7,266,977 tests. That is below the dataset-wide reference of 26.9%. This describes the included groups and does not predict an individual vehicle's result.
The lowest recorded failure rate among the included Mercedes-Benz model groups belongs to the Mercedes-Benz S-Class with a 8.3% failure rate. The highest failure rate belongs to the Mercedes-Benz Vito at 32.3%.
These figures are calculated from real DVSA MOT test records and represent weighted averages across all vehicle ages and mileage bands. Only model groups with 100 or more test records are included; the sample size is shown for context.
Which Mercedes-Benz Models Fail MOT Most?
| Model | Failure Rate | Total Tests |
|---|---|---|
| Mercedes-Benz Vito | 32.3% | 398,446 |
| Mercedes-Benz Sprinter | 32.0% | 880,666 |
| Mercedes-Benz B-Class | 24.9% | 307,768 |
| Mercedes-Benz CLS | 23.7% | 109,695 |
| Mercedes-Benz C-Class | 23.4% | 1,739,497 |
| Mercedes-Benz E-Class | 20.5% | 1,120,163 |
| Mercedes-Benz A-Class | 19.4% | 1,447,337 |
| Mercedes-Benz CLA | 16.7% | 243,102 |
| Mercedes-Benz V-Class | 16.5% | 55,336 |
| Mercedes-Benz SL | 16.2% | 109,615 |
| Mercedes-Benz GLA | 12.3% | 329,576 |
| Mercedes-Benz SLC | 11.2% | 41,160 |
| Mercedes-Benz GLS | 11.1% | 11,188 |
| Mercedes-Benz GLC | 10.6% | 315,948 |
| Mercedes-Benz AMG | 10.3% | 14,472 |
| Mercedes-Benz GLE | 10.3% | 124,583 |
| Mercedes-Benz GLB | 8.6% | 13,720 |
| Mercedes-Benz S-Class | 8.3% | 4,705 |
How we calculate failure rates: Rates are weighted averages across all mileage bands for each model group. Only groups with 100+ test records are shown. The checked-in data contains 148,509,908 tests and 39,969,903 failures.
Mercedes-Benz MOT FAQs
What is the recorded Mercedes-Benz MOT failure rate?
The sample-size-weighted rate across the 18 included Mercedes-Benz model groups is 21.9%, based on 7,266,977 tests. Individual group rates and sample sizes appear above. These historical group outcomes are not an assessment of a specific car.
Which included Mercedes-Benz model group has the lowest rate?
The Mercedes-Benz S-Class has the lowest MOT failure rate at 8.3% among the groups shown. This is a historical population comparison, not a recommendation. See full Mercedes-Benz S-Class MOT data.
Which Mercedes-Benz model fails MOT most?
The Mercedes-Benz Vito has the highest failure rate at 32.3% among the groups shown. The rate does not describe the condition of a particular car. See full Mercedes-Benz Vito MOT data.
How can I assess a Mercedes-Benz before its MOT?
AutoSafe offers a free MOT-history and comparison report. Enter your registration number and postcode to see the recorded history, mileage source and closest available comparison group.
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Enter your reg to see recorded MOT history and comparable-vehicle failure rates for your Mercedes-Benz.
Related Guides
- Top 10 MOT Failure Points
- Pre-MOT Checklist
- MOT Failure Rates by Car
- How to Check MOT History
- Will My Car Pass Its MOT?
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