2009 Mercedes-Benz B170 Sport Blueefficiency MOT Pass Rate
Pass rate for B170 Sport Blueefficiency models manufactured in 2009, based on 57 real MOT test results.
Data from official DVSA MOT testing records
2009 Mercedes-Benz B170 Sport Blueefficiency MOT Analysis
The 2009 Mercedes-Benz B170 Sport Blueefficiency has an MOT pass rate of 84.2% based on 57 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 35,604 miles on the odometer. With a 15.8% failure rate, the 2009 B170 Sport Blueefficiency is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 2009 Mercedes-Benz B170 Sport Blueefficiency is Non-component advisories, responsible for 5.3% of failures. Non-component advisories issues are a common cause of MOT failure. Regular inspection and maintenance of these components helps ensure your vehicle passes its MOT. Typical repair costs range from £100–400. Brakes is the second most common issue at 3.5%. Tyres follows at 1.8%.
Top failures specific to 2009 models only. The overall B170 Sport Blueefficiency page may show different rankings.
What Fails Most
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Non-component Advisories | 5.3% | 3 |
| 2 | Brakes | 3.5% | 2 |
| 3 | Tyres | 1.8% | 1 |
| 4 | Driver's View Of The Road | 1.8% | 1 |
| 5 | Lamps, Reflectors And Electrical Equipment | 1.8% | 1 |
| 6 | Suspension | 1.8% | 1 |
Failures per 10,000 Miles
avg. 35,604 miFor every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.
View as table
| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Non-component advisories | 1.48 | 5.3% | 3 |
| Brakes | 0.99 | 3.5% | 2 |
| Tyres | 0.49 | 1.8% | 1 |
| Visibility | 0.49 | 1.8% | 1 |
| Lamps & Electrical | 0.49 | 1.8% | 1 |
| Suspension | 0.49 | 1.8% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 2009 Mercedes-Benz B170 Sport Blueefficiency has an MOT pass rate of 84.2% based on 57 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 35,604 miles on the odometer. With a 15.8% failure rate, the 2009 B170 Sport Blueefficiency is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 2009 Mercedes-Benz B170 Sport Blueefficiency, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to non-component advisories: Have this system checked during regular servicing. Look for warning signs like unusual noises, vibrations, or dashboard warning lights. With relatively low average mileage of 35,604 miles, many of these vehicles are still in good mechanical condition.
Non-component advisories — 5.3% of failures
Non-component advisories issues account for 5.3% of MOT failures on 2009 Mercedes-Benz B170 Sport Blueefficiency models. Non-component advisories issues are a common cause of MOT failure. Regular inspection and maintenance of these components helps ensure your vehicle passes its MOT. Typical repair costs: £100–400. Pre-MOT check: Have this system checked during regular servicing. Look for warning signs like unusual noises, vibrations, or dashboard warning lights.
Brakes — 3.5% of failures
Brakes issues account for 3.5% of MOT failures on 2009 Mercedes-Benz B170 Sport Blueefficiency models. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs: £150–400. Pre-MOT check: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm).
Tyres — 1.8% of failures
Tyres issues account for 1.8% of MOT failures on 2009 Mercedes-Benz B170 Sport Blueefficiency models. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs: £50–200 per tyre. Pre-MOT check: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.