Mercedes S 400 L AMG LN Prm+exec D 4M A MOT Pass Rate and Running Costs
Reliability, estimated running costs, and MOT data across 1 model year from 41 MOT tests in 2024.
Avg Pass Rate
100%
Total Tests
41
Model Year
2022
Years Covered
1
About the Mercedes S 400 L AMG LN Prm+exec D 4M A
The Mercedes S 400 L AMG LN Prm+exec D 4M A was MOT tested 41 times in 2024 (DVSA data, retests included) across 1 model year (2022), with an average pass rate of 100%. That's comfortably above the average of 82% across all models in our data. Our records list diesel versions.
Compared to the Mercedes brand average of 87%, the S 400 L AMG LN Prm+exec D 4M A performs 13 points better, making it one of the more reliable options in the Mercedes range.
Estimated Running Costs
Based on 7,400 miles/year, average pump prices of 174.57p petrol and 199.33p diesel (GOV.UK weekly road fuel prices, week of 19 October 2026), and MOT pass rate data. Insurance not included.
Full 2022 detailsHow reliable is the Mercedes S 400 L AMG LN Prm+exec D 4M A?
Mercedes S 400 L AMG LN Prm+exec D 4M A by Year
Click any year to see detailed running costs, reliability data, and comparisons with similar cars.
| Year | Pass Rate | Tests | Avg Mileage | |
|---|---|---|---|---|
| 2022 | 100% | 41 | 67,956 mi |
Questions about the Mercedes S 400 L AMG LN Prm+exec D 4M A
Is the Mercedes S 400 L AMG LN Prm+exec D 4M A reliable?
Across its 1 model year in our data (2022), the Mercedes S 400 L AMG LN Prm+exec D 4M A averages a 100% MOT pass rate, from 41 tests (DVSA MOT data for tests in 2024, retests included). That's 18 points above the average of 82% across all models in the same data.
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