1997 Mercedes-Benz 412 MOT Pass Rate
Pass rate for 412 models manufactured in 1997, based on 233 real MOT test results.
Data from official DVSA MOT testing records
This page shows all 412 cars tested in 1997. Want to see how cars built in 1997 hold up over time?
View 1997 Mercedes-Benz 412 vintage page → (71.7% current pass rate)1997 Mercedes-Benz 412 MOT Analysis
The 1997 Mercedes-Benz 412 has an MOT pass rate of 55.4% based on 233 tests — slightly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 184,351 miles on the odometer. With a 44.6% failure rate, the 1997 412 is rated as "Below Average" for MOT reliability.
The leading cause of MOT failure for the 1997 Mercedes-Benz 412 is Brakes, responsible for 15.5% 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. Suspension is the second most common issue at 11.2%. Lamps, reflectors and electrical equipment follows at 9.9%.
Top failures specific to 1997 models only. The overall 412 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 | Brakes | 15.5% | 36 |
| 2 | Suspension | 11.2% | 26 |
| 3 | Lamps, Reflectors And Electrical Equipment | 9.9% | 23 |
| 4 | Visibility | 4.3% | 10 |
| 5 | Tyres | 2.6% | 6 |
| 6 | Body, Chassis, Structure | 2.6% | 6 |
| 7 | Noise, Emissions And Leaks | 0.9% | 2 |
| 8 | Seat Belts And Supplementary Restraint Systems | 0.9% | 2 |
Failures per 10,000 Miles
avg. 184,351 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 |
|---|---|---|---|
| Brakes | 0.84 | 15.5% | 36 |
| Suspension | 0.61 | 11.2% | 26 |
| Lamps & Electrical | 0.54 | 9.9% | 23 |
| Visibility | 0.23 | 4.3% | 10 |
| Tyres | 0.14 | 2.6% | 6 |
| Body & Structure | 0.14 | 2.6% | 6 |
| Noise, emissions and leaks | 0.05 | 0.9% | 2 |
| Seat Belts | 0.05 | 0.9% | 2 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1997 Mercedes-Benz 412 has an MOT pass rate of 55.4% based on 233 tests — slightly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 184,351 miles on the odometer. With a 44.6% failure rate, the 1997 412 is rated as "Below Average" for MOT reliability.
If you own or are considering buying a 1997 Mercedes-Benz 412, budget for potential repairs before each MOT. 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 an average mileage of 184,351 miles, these vehicles are in the higher-mileage bracket where wear-related failures become more common.
Brakes — 15.5% of failures
Brakes issues account for 15.5% of MOT failures on 1997 Mercedes-Benz 412 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).
Suspension — 11.2% of failures
Suspension issues account for 11.2% of MOT failures on 1997 Mercedes-Benz 412 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.
Lamps, reflectors and electrical equipment — 9.9% of failures
Lamps, reflectors and electrical equipment issues account for 9.9% of MOT failures on 1997 Mercedes-Benz 412 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.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.