1997 Mercedes S 280 MOT Pass Rate
Pass rate for S 280 models manufactured in 1997, based on 1,861 real MOT test results.
Data from official DVSA MOT testing records
This page shows all S 280 cars tested in 1997. Want to see how cars built in 1997 hold up over time?
View 1997 Mercedes S 280 vintage page → (60.0% current pass rate)1997 Mercedes S 280 MOT Analysis
The 1997 Mercedes S 280 has an MOT pass rate of 58.9% based on 1,861 tests — slightly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 108,973 miles on the odometer. With a 41.1% failure rate, the 1997 S 280 is rated as "Below Average" for MOT reliability.
The leading cause of MOT failure for the 1997 Mercedes S 280 is Noise, emissions and leaks, responsible for 0.6% 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+. Brakes is the second most common issue at 0.6%. Suspension follows at 0.5%.
Top failures specific to 1997 models only. The overall S 280 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 | 0.6% | 12 |
| 2 | Brakes | 0.6% | 12 |
| 3 | Suspension | 0.5% | 10 |
| 4 | Lamps, Reflectors And Electrical Equipment | 0.5% | 9 |
| 5 | Tyres | 0.5% | 9 |
| 6 | Visibility | 0.4% | 7 |
| 7 | Body, Chassis, Structure | 0.3% | 5 |
| 8 | Seat Belts And Supplementary Restraint Systems | 0.2% | 4 |
| 9 | Non-component Advisories | 0.1% | 2 |
Failures per 10,000 Miles
avg. 108,973 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 |
|---|---|---|---|
| Noise, emissions and leaks | 0.06 | 0.6% | 12 |
| Brakes | 0.06 | 0.6% | 12 |
| Suspension | 0.05 | 0.5% | 10 |
| Lamps & Electrical | 0.04 | 0.5% | 9 |
| Tyres | 0.04 | 0.5% | 9 |
| Visibility | 0.03 | 0.4% | 7 |
| Body & Structure | 0.02 | 0.3% | 5 |
| Seat Belts | 0.02 | 0.2% | 4 |
| Non-component advisories | 0.01 | 0.1% | 2 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1997 Mercedes S 280 has an MOT pass rate of 58.9% based on 1,861 tests — slightly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 108,973 miles on the odometer. With a 41.1% failure rate, the 1997 S 280 is rated as "Below Average" for MOT reliability.
If you own or are considering buying a 1997 Mercedes S 280, budget for potential repairs before each MOT. 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. With an average mileage of 108,973 miles, these vehicles are in the higher-mileage bracket where wear-related failures become more common.
Noise, emissions and leaks — 0.6% of failures
Noise, emissions and leaks issues account for 0.6% of MOT failures on 1997 Mercedes S 280 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.
Brakes — 0.6% of failures
Brakes issues account for 0.6% of MOT failures on 1997 Mercedes S 280 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 — 0.5% of failures
Suspension issues account for 0.5% of MOT failures on 1997 Mercedes S 280 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.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.