2021 Mercedes-Benz S 500 L Amg Ln Prem Mhev 4m A MOT Pass Rate
Pass rate for S 500 L Amg Ln Prem Mhev 4m A models manufactured in 2021, based on 73 real MOT test results.
Data from official DVSA MOT testing records
This page shows all S 500 L Amg Ln Prem Mhev 4m A cars tested in 2021. Want to see how cars built in 2021 hold up over time?
View 2021 Mercedes-Benz S 500 L Amg Ln Prem Mhev 4m A vintage page → (96.9% current pass rate)2021 Mercedes-Benz S 500 L Amg Ln Prem Mhev 4m A MOT Analysis
The 2021 Mercedes-Benz S 500 L Amg Ln Prem Mhev 4m A has an MOT pass rate of 97.3% based on 73 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 35,001 miles on the odometer. With a 2.7% failure rate, the 2021 S 500 L Amg Ln Prem Mhev 4m A is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 2021 Mercedes-Benz S 500 L Amg Ln Prem Mhev 4m A is Tyres, responsible for 4.1% of failures. 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 range from £50–200 per tyre. Non-component advisories is the second most common issue at 1.4%. Lamps, reflectors and electrical equipment follows at 1.4%.
Top failures specific to 2021 models only. The overall S 500 L Amg Ln Prem Mhev 4m 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 |
|---|---|---|---|
| 1 | Tyres | 4.1% | 3 |
| 2 | Non-component Advisories | 1.4% | 1 |
| 3 | Lamps, Reflectors And Electrical Equipment | 1.4% | 1 |
Failures per 10,000 Miles
avg. 35,001 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 |
|---|---|---|---|
| Tyres | 1.17 | 4.1% | 3 |
| Non-component advisories | 0.39 | 1.4% | 1 |
| Lamps & Electrical | 0.39 | 1.4% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 2021 Mercedes-Benz S 500 L Amg Ln Prem Mhev 4m A has an MOT pass rate of 97.3% based on 73 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 35,001 miles on the odometer. With a 2.7% failure rate, the 2021 S 500 L Amg Ln Prem Mhev 4m A is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 2021 Mercedes-Benz S 500 L Amg Ln Prem Mhev 4m A, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to tyres: 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. With relatively low average mileage of 35,001 miles, many of these vehicles are still in good mechanical condition.
Tyres — 4.1% of failures
Tyres issues account for 4.1% of MOT failures on 2021 Mercedes-Benz S 500 L Amg Ln Prem Mhev 4m A models. 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.
Non-component advisories — 1.4% of failures
Non-component advisories issues account for 1.4% of MOT failures on 2021 Mercedes-Benz S 500 L Amg Ln Prem Mhev 4m A models. Non-component advisories issues are a common cause of MOT failure. Regular inspection and maintenance of these components helps ensure your vehicle passes its MOT. Typical repair costs: £100–400. Pre-MOT check: Have this system checked during regular servicing. Look for warning signs like unusual noises, vibrations, or dashboard warning lights.
Lamps, reflectors and electrical equipment — 1.4% of failures
Lamps, reflectors and electrical equipment issues account for 1.4% of MOT failures on 2021 Mercedes-Benz S 500 L Amg Ln Prem Mhev 4m 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.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.