What Is Mercedes-Benz's MOT Pass Rate?
on 23 April 2026
Mercedes-Benz vehicles achieved an overall pass rate of 82.3% in their MOT tests from 2022 to 2024, based on a total of 1,973,943 tests conducted during this period according to DVSA anonymised MOT testing data. This is higher than the national average MOT pass rate of 79.6%. Therefore, Mercedes-Benz vehicles outperform the general vehicle population by a margin of 2.7 percentage points.
Analyzing the three-year trend from 2022 to 2024 reveals that Mercedes-Benz's MOT pass rate has remained relatively stable. In 2022, the pass rate was recorded at 82.6%, followed by a slight decrease in 2023 to 82.3%. The same pass rate of 82.3% was observed again in 2024. This consistency suggests that Mercedes-Benz vehicles maintain their reliability and quality over time, meeting the MOT standards consistently without significant fluctuations.
Which Mercedes-Benz Models Pass Their MOT Most Often?
Mercedes-Benz models exhibit varying levels of success when it comes to passing their MOT tests:
- A-Class (90,452 tests): A top performer with a pass rate of 90.6%, indicating that the A-Class is one of the most reliable models in terms of maintaining compliance with MOT requirements.
- S-Class (25,846 tests): With an impressive pass rate of 86.4%, the S-Class demonstrates high reliability and adherence to MOT standards.
- CLA (53,116 tests): This model boasts a strong pass rate of 84.8%.
- V-Class (11,092 tests): A respectable performance with an 84.9% pass rate.
On the other hand, some models show lower pass rates:
- CLS (21,158 tests): The CLS has a relatively low pass rate of 80.3%, which is notably below average.
- ML (33,655 tests): Another model with a subpar performance at 79.8%.
- Vito (94,231 tests) and Spriter (202,432 tests) also have lower pass rates of 77.5% and 77.2%, respectively.
The average mileage for each model tested provides insight into typical usage patterns, with the A-Class being tested at an average of 35,426 miles, suggesting more frequent MOT checks compared to other models like the Vito which averages 135,969 miles before a test is conducted.
What Are the Most Common MOT Failures on Mercedes-Benz Vehicles?
Based on national trends observed in DVSA anonymised MOT data, common failure points for Mercedes-Benz vehicles include:
- Lighting and Electrical Systems (18.9% nationally): Issues such as faulty headlamps or malfunctioning brake lights are frequently reported.
- Suspension Components (13.2%): Problems like worn-out shock absorbers can lead to MOT failures.
- Braking System (10.1%): Worn brakes or issues with the braking fluid level often cause vehicles to fail their tests.
- Tyre Condition (7.8%): Low tread depth, damaged sidewalls, or under-inflated tyres are common culprits.
To mitigate these risks and save on potential repair costs:
Pre-MOT Checklist
Before taking your Mercedes-Benz for an MOT:
- Ensure all lights are functioning correctly.
- Check tyre condition and ensure they meet legal requirements.
- Inspect wiper blades and top up screen wash if necessary.
The average cost of an MOT in the UK is £54.85 (DVSA fixed fee). It's important to distinguish between advisories, which indicate areas that may need attention but don't necessarily fail the test, and outright failures. Addressing these advisories can prevent future issues and ensure your vehicle remains roadworthy.
If you financed your Mercedes-Benz via PCP or HP and suspect potential mis-selling of finance products, visit mlj.org.uk for further assistance.
Sources
- DVSA Anonymised MOT Testing Data (2022-2024)
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