Mercedes-Benz MOT Failure Rates
MOT failure rates for 18 Mercedes-Benz models, ranked from highest to lowest failure rate. Data from official DVSA MOT test records covering 142 million UK MOT tests.
Mercedes-Benz MOT Reliability Overview
Across 18 models with sufficient test data, Mercedes-Benz vehicles have an average MOT failure rate of 17.1%. This puts Mercedes-Benz below the UK national average of 28%, suggesting above-average reliability across the range.
The most reliable Mercedes-Benz model for MOT is 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 models with 100 or more test records are included to ensure statistical reliability.
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. Only models with 100+ test records are shown. Data sourced from official DVSA MOT test records covering 142 million tests.
Mercedes-Benz MOT FAQs
Are Mercedes-Benz cars reliable for MOT?
Mercedes-Benz has 18 models in our database. Overall, Mercedes-Benz vehicles perform well in MOT tests with an average failure rate below the national average of 28%. Click on any model above to see a detailed component-level breakdown.
Which Mercedes-Benz model is best for MOT?
The Mercedes-Benz S-Class has the lowest MOT failure rate at 8.3%, making it the most reliable Mercedes-Benz model in our dataset. 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%. This doesn’t necessarily mean it’s a bad car — higher failure rates often correlate with older average vehicle age. See full Mercedes-Benz Vito MOT data.
How can I predict if my Mercedes-Benz will pass its MOT?
AutoSafe offers a free AI-powered MOT prediction tool. Enter your registration number and postcode to get a personalised failure risk assessment based on your specific vehicle’s age, mileage, and MOT history.
Check Your Mercedes-Benz
Enter your reg to get a personalised MOT failure prediction for your specific 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?
Other Makes
Check Your Mercedes-Benz
Enter your reg to get a personalised MOT failure prediction for your specific Mercedes-Benz.
Check Your MOT Risk Free