DVSA Statistics
2009 Mercedes-Benz B-Class
MOT Pass Rate & Pre-MOT Checklist
Used 2009 Mercedes-Benz B-Classs usually pass their MOT, but around 1 in 4 still fail, most often for brake pipe damaged or excessively corroded, tyre tread depth not in accordance with the requirements and a tyre seriously damaged. Based on 6,241 MOT tests from DVSA data, this page shows how this model performs and what to check before your test.
Pass Rate
Based on 6,241 DVSA anonymised MOT tests · About this data
Pass Rate
74.1%
About average
Top Failure Reasons
Common MOT failures for this model
Parts Available
Brakes are a common wear item.
Based on DVSA statistics from 6,241 recorded tests.
Pre-MOT Checklist for 2009 Mercedes-Benz B-Class
Based on common failure points for this model, check these items before your MOT:
- 1
Test brakes for effectiveness, pull, and unusual noises when driving
Brakes – Common fail on this model
- 2
Check tyre tread depth is at least 1.6mm across the central 3/4 of the tyre
Tyres – Common fail on this model
- 3
Visually inspect coil springs for cracks or broken coils
Suspension – Common fail on this model
How Does This Compare to Other Years?
Previous Year
2008 Mercedes-Benz B-Class
Based on 5,221 UK MOT tests
Next Year
2010 Mercedes-Benz B-Class
Based on 6,310 UK MOT tests
The 2009 model shows improvement over 2008 but the 2010 model has an even better pass rate.
Why Trust This Data?
Official UK Government Source
This data comes from the UK's Driver and Vehicle Standards Agency (DVSA), the official body responsible for MOT testing standards. The anonymised MOT test data is published via data.gov.uk.
Understanding the Statistics
This page is based on 6,241 MOT tests from the 2023 DVSA dataset. Your 2009 Mercedes-Benz B-Class was 14 years old when this data was collected and is now 17 years old.
Sample Size
High confidence - 6,241 tests (statistically reliable)
Limitations
Statistics reflect average outcomes and don't account for maintenance history, mileage, or regional variations. Individual results will vary based on how well a vehicle has been maintained.
Do you own this car?
Check your specific vehicle for outstanding advisories or recalls. Get a personalized risk report for your exact Mercedes-Benz B-Class.
Frequently Asked Questions
Is a 2009 Mercedes-Benz B-Class likely to fail its MOT?
Based on DVSA statistics, the 2009 Mercedes-Benz B-Class has a 74.1% MOT pass rate. This is about average for vehicles of this age.
What are the most common MOT failures on a 2009 Mercedes-Benz B-Class?
The most common MOT failure reasons for a 2009 Mercedes-Benz B-Class are: brake pipe damaged or excessively corroded, tyre tread depth not in accordance with the requirements, a tyre seriously damaged. Many of these can be checked and fixed before your test to improve your chances of passing.
How can I reduce the chance my 2009 Mercedes-Benz B-Class fails its MOT?
To improve your chances of passing, check the items that commonly fail on this model: brake pipe damaged or excessively corroded, tyre tread depth not in accordance with the requirements, a tyre seriously damaged. Use our pre-MOT checklist above to identify potential issues before your test. Many common failures are easy DIY fixes.
How many 2009 Mercedes-Benz B-Classs fail their MOT?
Around 26% of 2009 Mercedes-Benz B-Classs fail their MOT test, meaning roughly 1 in 4 don't pass first time. The most common reasons are brake pipe damaged or excessively corroded and tyre tread depth not in accordance with the requirements. Pre-checking these items can significantly improve your chances.
What should I check before my 2009 Mercedes-Benz B-Class MOT?
Before your 2009 Mercedes-Benz B-Class MOT, check these commonly-failed items: brake pipe damaged or excessively corroded, tyre tread depth not in accordance with the requirements, a tyre seriously damaged. Most are visual checks you can do at home – look for worn tyres, test all lights work, and check for obvious damage or leaks.
Is the 2009 Mercedes-Benz B-Class reliable for MOT?
With a 74.1% MOT pass rate, the 2009 Mercedes-Benz B-Class performs about average compared to typical vehicles. This is typical performance for vehicles in this age bracket.