What is the MERCEDES-BENZ S-CLASS MOT pass rate?
In the 2023–24 DVSA MOT file this nameplate passed 86.8% of 28,945 tests (24,917 passes, 3,806 fails). That is a test-outcome rate, not a prediction for any one car.
UK MOT · make×model
MERCEDES-BENZ S-CLASS
MOT pass rate.
Aggregated DVSA MOT tests for this nameplate in 2023–24. Average mileage is the mean recorded odometer on those tests, in miles. Top defects are the most frequent failure item groups in the derived summary — not a ranked reliability verdict.
Counts, not a score
24,917 passes · 3,806 fails
Snapshot generated 2026-08-24 from the compact derived MOT model summary. Duplicate MOT labels that share a URL slug were canonicalised to the higher-volume row. No per-test or per-VIN records are published.
Is a high MOT pass rate the same as reliability?
No. MOT tests a defined set of roadworthiness items at a point in time. They do not measure durability, crashworthiness, or US complaint volume. Sparse models (under 500 tests) are not published.
Are these UK or US figures?
UK. The rest of ModelYearFacts is US NHTSA and EPA evidence. This hub is Great Britain MOT statistics on the same nameplate, published under the Open Government Licence.
Most common MOT failure groups
01 · Failure groupSuspension2,507 recorded items
02 · Failure groupBrakes2,505 recorded items
03 · Failure groupTyres2,444 recorded items
04 · Failure groupLamps, reflectors and electrical equipment1,569 recorded items
05 · Failure groupNoise, emissions and leaks914 recorded items
Pass rate by vehicle age
Age is years at test. Bands with fewer than 50 tests on this nameplate are omitted. These are extra fields on this hub, not separate URLs.
| Age (years) | Tests | Pass rate | Average mileage |
|---|---|---|---|
| 3 | 86 | 91.9% | 31,659 mi |
| 4 | 269 | 92.9% | 43,921 mi |
| 5 | 2,516 | 92.2% | 66,249 mi |
| 6 | 2,543 | 91.3% | 72,628 mi |
| 7 | 2,632 | 89.4% | 72,686 mi |
| 8 | 3,032 | 88.3% | 74,833 mi |
| 9 | 2,395 | 89.0% | 87,776 mi |
| 10 | 1,763 | 90.0% | 97,538 mi |
| 11 | 1,102 | 85.9% | 109,493 mi |
| 12 | 1,432 | 83.6% | 104,469 mi |
| 13 | 1,074 | 83.4% | 109,298 mi |
| 14 | 995 | 82.5% | 111,006 mi |
| 15 | 1,012 | 79.0% | 113,206 mi |
| 16 | 1,148 | 80.8% | 113,004 mi |
| 17 | 1,486 | 80.2% | 116,727 mi |
| 18 | 1,179 | 83.3% | 109,945 mi |
| 19 | 628 | 77.5% | 124,425 mi |
| 20 | 712 | 83.0% | 124,139 mi |
| 21 | 723 | 80.2% | 123,757 mi |
| 22 | 436 | 78.7% | 111,104 mi |
| 23 | 392 | 76.5% | 102,976 mi |
| 24 | 278 | 78.4% | 103,808 mi |
| 25 | 180 | 75.6% | 100,066 mi |
| 26 | 189 | 80.4% | 111,494 mi |
| 27 | 124 | 85.5% | 106,337 mi |
| 28 | 122 | 83.6% | 106,732 mi |
| 29 | 93 | 81.7% | 109,477 mi |
| 30 | 54 | 90.7% | 100,613 mi |