Mercedes-Benz S500 L Amg Line Executive Auto MOT Pass Rate
Overall pass rate across all manufacture years, based on 35 real MOT test results. Failure rate: 11.4%.
Data from official DVSA MOT testing records
Mercedes-Benz S500 L Amg Line Executive Auto MOT Reliability Overview
The Mercedes-Benz S500 L Amg Line Executive Auto is a rare vehicle in the UK, with 35 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 88.6% and a failure rate of 11.4%, which is well above the UK average of approximately 37%.
Based on this data, the Mercedes-Benz S500 L Amg Line Executive Auto earns a "Excellent" reliability rating. The average Mercedes-Benz S500 L Amg Line Executive Auto presents for MOT with approximately 23,394 miles on the clock.
The most common MOT failure for the Mercedes-Benz S500 L Amg Line Executive Auto is Suspension, affecting 2.9% of all tests. 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. The second most common issue is Tyres at 2.9%. Brakes rounds out the top three at 2.9%. Together, these top 3 failure categories account for a significant portion of all MOT failures for this model.
Top failures across all manufacture years combined. Individual year pages may show different top failures.
What Fails Most
* High Fail Rate badge indicates an MOT pass rate below 65% (failure rate above 35%).
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Brakes | 2.9% | 1 |
| 2 | Driver's View Of The Road | 2.9% | 1 |
| 3 | Road Wheels | 2.9% | 1 |
| 4 | Suspension | 2.9% | 1 |
| 5 | Tyres | 2.9% | 1 |
Failures per 10,000 Miles
avg. 23,394 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 | 1.22 | 2.9% | 1 |
| Visibility | 1.22 | 2.9% | 1 |
| Wheels | 1.22 | 2.9% | 1 |
| Suspension | 1.22 | 2.9% | 1 |
| Tyres | 1.22 | 2.9% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Mercedes-Benz S500 L Amg Line Executive Auto has 23,394 miles when tested for MOT.
📊 Mileage-Adjusted Failure Rate
How often this car fails MOT relative to how much it's driven — a fairer comparison than raw pass rate.
The Mercedes-Benz S500 L Amg Line Executive Auto has a mileage-adjusted failure rate of 4.87% per 10,000 miles driven. The average across all makes is 5.38%, so this model is better than average.
About Mercedes-Benz S500 L Amg Line Executive Auto MOT Data
The Mercedes-Benz S500 L Amg Line Executive Auto is a rare vehicle in the UK, with 35 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 88.6% and a failure rate of 11.4%, which is well above the UK average of approximately 37%.
For Mercedes-Benz S500 L Amg Line Executive Auto owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on suspension and tyres for the best chance of a first-time pass. Use our detailed year-by-year breakdown and failure analysis below to understand how your specific S500 L Amg Line Executive Auto is likely to perform.
Suspension — 2.9% of failures
Suspension issues account for 2.9% of MOT failures on the Mercedes-Benz S500 L Amg Line Executive Auto. 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.
Tyres — 2.9% of failures
Tyres issues account for 2.9% of MOT failures on the Mercedes-Benz S500 L Amg Line Executive Auto. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs: £50–200 per tyre. Pre-MOT check: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating.
Brakes — 2.9% of failures
Brakes issues account for 2.9% of MOT failures on the Mercedes-Benz S500 L Amg Line Executive Auto. 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).
Frequently Asked Questions
What is the MOT pass rate for the Mercedes-Benz S500 L Amg Line Executive Auto?
Based on 35 (based on limited data) MOT tests in our database, the Mercedes-Benz S500 L Amg Line Executive Auto has an overall pass rate of 88.6% (11.4% fail rate).
What are the most common MOT failures on a Mercedes-Benz S500 L Amg Line Executive Auto?
The top 3 reasons a Mercedes-Benz S500 L Amg Line Executive Auto fails its MOT are: 1. Suspension (2.9%), 2. Tyres (2.9%), 3. Brakes (2.9%). Check these areas before booking your MOT.
Is the Mercedes-Benz S500 L Amg Line Executive Auto reliable?
With a 11.4% MOT failure rate, the S500 L Amg Line Executive Auto is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Mercedes-Benz S500 L Amg Line Executive Auto?
Based on failure data, focus on: Suspension (2.9%); Tyres (2.9%); Brakes (2.9%). These are the areas most likely to cause a fail. Also check all lights, tyres (minimum 1.6mm tread), and windscreen condition — these are quick wins that apply to all cars.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.