2012 Mercedes Bus MOT Pass Rate
Pass rate for Bus models manufactured in 2012, based on 52 real MOT test results.
Data from official DVSA MOT testing records
2012 Mercedes Bus MOT Analysis
The 2012 Mercedes Bus has an MOT pass rate of 71.2% based on 52 tests — above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 58,375 miles on the odometer. With a 28.8% failure rate, the 2012 Bus is rated as "Very Good" for MOT reliability.
The leading cause of MOT failure for the 2012 Mercedes Bus is Noise, emissions and leaks, responsible for 7.7% 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+. Suspension is the second most common issue at 7.7%. Non-component advisories follows at 3.8%.
Top failures specific to 2012 models only. The overall Bus 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 | 7.7% | 4 |
| 2 | Suspension | 7.7% | 4 |
| 3 | Non-component Advisories | 3.8% | 2 |
Failures per 10,000 Miles
avg. 58,375 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 | 1.32 | 7.7% | 4 |
| Suspension | 1.32 | 7.7% | 4 |
| Non-component advisories | 0.66 | 3.8% | 2 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 2012 Mercedes Bus has an MOT pass rate of 71.2% based on 52 tests — above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 58,375 miles on the odometer. With a 28.8% failure rate, the 2012 Bus is rated as "Very Good" for MOT reliability.
If you own or are considering buying a 2012 Mercedes Bus, 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 58,375 average miles, these vehicles are in the mid-range where component wear starts to become a factor.
Noise, emissions and leaks — 7.7% of failures
Noise, emissions and leaks issues account for 7.7% of MOT failures on 2012 Mercedes Bus 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.
Suspension — 7.7% of failures
Suspension issues account for 7.7% of MOT failures on 2012 Mercedes Bus models. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. Typical repair costs: £200–500. Pre-MOT check: Look for uneven tyre wear, listen for clunking over bumps, and check if the car pulls to one side. A bouncy ride suggests worn shock absorbers. Visually inspect coil springs for cracks.
Non-component advisories — 3.8% of failures
Non-component advisories issues account for 3.8% of MOT failures on 2012 Mercedes Bus 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.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.