2012 Mercedes-Benz A MOT Pass Rate
Pass rate for A models manufactured in 2012, based on 15,931 real MOT test results.
Data from official DVSA MOT testing records
This page shows all A cars tested in 2012. Want to see how cars built in 2012 hold up over time?
View 2012 Mercedes-Benz A vintage page → (74.3% current pass rate)2012 Mercedes-Benz A MOT Analysis
The 2012 Mercedes-Benz A has an MOT pass rate of 78.2% based on 15,931 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 45,050 miles on the odometer. With a 21.8% failure rate, the 2012 A is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 2012 Mercedes-Benz A is Brakes, responsible for 0.0% of failures. 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 range from £150–400. Lamps, reflectors and electrical equipment is the second most common issue at 0.0%. Seat belts and supplementary restraint systems follows at 0.0%.
Top failures specific to 2012 models only. The overall A 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 |
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Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 2012 Mercedes-Benz A has an MOT pass rate of 78.2% based on 15,931 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 45,050 miles on the odometer. With a 21.8% failure rate, the 2012 A is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 2012 Mercedes-Benz A, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to brakes: 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). With relatively low average mileage of 45,050 miles, many of these vehicles are still in good mechanical condition.
Brakes — 0.0% of failures
Brakes issues account for 0.0% of MOT failures on 2012 Mercedes-Benz A 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).
Lamps, reflectors and electrical equipment — 0.0% of failures
Lamps, reflectors and electrical equipment issues account for 0.0% of MOT failures on 2012 Mercedes-Benz A models. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs: £5–50. Pre-MOT check: Walk around the car and check every light — headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test.
Seat belts and supplementary restraint systems — 0.0% of failures
Seat belts and supplementary restraint systems issues account for 0.0% of MOT failures on 2012 Mercedes-Benz A models. Seat belt failures include frayed or cut webbing, faulty retractors, buckles that don't latch properly, and missing or damaged anchorages. All fitted seat belts must be functional. Typical repair costs: £50–200 per belt. Pre-MOT check: Pull each seat belt fully out and check for fraying, cuts, or fading. Ensure each belt retracts smoothly and the buckle clicks securely. Check the pre-tensioner warning light on the dashboard.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.