2004 Mercedes Sl65 Amg Auto MOT Pass Rate
Pass rate for Sl65 Amg Auto models manufactured in 2004, based on 38 real MOT test results.
Data from official DVSA MOT testing records
2004 Mercedes Sl65 Amg Auto MOT Analysis
The 2004 Mercedes Sl65 Amg Auto has an MOT pass rate of 84.2% based on 38 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 52,783 miles on the odometer. With a 15.8% failure rate, the 2004 Sl65 Amg Auto is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 2004 Mercedes Sl65 Amg Auto is Suspension, responsible for 10.5% of failures. 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 range from £200–500. Brakes is the second most common issue at 7.9%.
Top failures specific to 2004 models only. The overall Sl65 Amg Auto 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 | Suspension | 10.5% | 4 |
| 2 | Brakes | 7.9% | 3 |
Failures per 10,000 Miles
avg. 52,783 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 |
|---|---|---|---|
| Suspension | 1.99 | 10.5% | 4 |
| Brakes | 1.50 | 7.9% | 3 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 2004 Mercedes Sl65 Amg Auto has an MOT pass rate of 84.2% based on 38 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 52,783 miles on the odometer. With a 15.8% failure rate, the 2004 Sl65 Amg Auto is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 2004 Mercedes Sl65 Amg Auto, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to suspension: 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. At 52,783 average miles, these vehicles are in the mid-range where component wear starts to become a factor.
Suspension — 10.5% of failures
Suspension issues account for 10.5% of MOT failures on 2004 Mercedes Sl65 Amg Auto 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.
Brakes — 7.9% of failures
Brakes issues account for 7.9% of MOT failures on 2004 Mercedes Sl65 Amg Auto 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.