2015 BMW 135 MOT Pass Rate
Pass rate for 135 models manufactured in 2015, based on 85 real MOT test results.
Data from official DVSA MOT testing records
2015 BMW 135 MOT Analysis
The 2015 BMW 135 has an MOT pass rate of 85.9% based on 85 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 53,596 miles on the odometer. With a 14.1% failure rate, the 2015 135 is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 2015 BMW 135 is Noise, emissions and leaks, responsible for 4.7% of failures. Emissions failures occur when exhaust gases exceed legal limits for carbon monoxide (CO), hydrocarbons (HC), or particulate matter (diesel). Common causes include faulty oxygen sensors, clogged catalytic converters, or DPF issues on diesel vehicles. Typical repair costs range from £100–1,000+. Road Wheels is the second most common issue at 2.4%. Brakes follows at 1.2%.
Top failures specific to 2015 models only. The overall 135 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 | Noise, Emissions And Leaks | 4.7% | 4 |
| 2 | Road Wheels | 2.4% | 2 |
| 3 | Brakes | 1.2% | 1 |
| 4 | Tyres | 1.2% | 1 |
Failures per 10,000 Miles
avg. 53,596 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.
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| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Noise, emissions and leaks | 0.88 | 4.7% | 4 |
| Wheels | 0.44 | 2.4% | 2 |
| Brakes | 0.22 | 1.2% | 1 |
| Tyres | 0.22 | 1.2% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 2015 BMW 135 has an MOT pass rate of 85.9% based on 85 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 53,596 miles on the odometer. With a 14.1% failure rate, the 2015 135 is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 2015 BMW 135, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to noise, emissions and leaks: If the engine management light is on, get it diagnosed before the MOT. For diesel cars, ensure the DPF has completed a regeneration cycle. Regular servicing and using premium fuel before the test can help. At 53,596 average miles, these vehicles are in the mid-range where component wear starts to become a factor.
Noise, emissions and leaks — 4.7% of failures
Noise, emissions and leaks issues account for 4.7% of MOT failures on 2015 BMW 135 models. Emissions failures occur when exhaust gases exceed legal limits for carbon monoxide (CO), hydrocarbons (HC), or particulate matter (diesel). Common causes include faulty oxygen sensors, clogged catalytic converters, or DPF issues on diesel vehicles. Typical repair costs: £100–1,000+. Pre-MOT check: If the engine management light is on, get it diagnosed before the MOT. For diesel cars, ensure the DPF has completed a regeneration cycle. Regular servicing and using premium fuel before the test can help.
Road Wheels — 2.4% of failures
Road Wheels issues account for 2.4% of MOT failures on 2015 BMW 135 models. Wheel failures include cracked or severely corroded alloy wheels, missing or loose wheel nuts, and wheels that are insecurely attached. These are safety-critical and relatively rare compared to tyre failures. Typical repair costs: £100–400 per wheel. Pre-MOT check: Visually inspect wheels for cracks, especially around the spokes and rim. Check that all wheel nuts are present and tightened. Look for signs of impact damage on alloy wheels.
Brakes — 1.2% of failures
Brakes issues account for 1.2% of MOT failures on 2015 BMW 135 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).
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.