What is the MERCEDES-BENZ SL MOT pass rate?
In the 2023–24 DVSA MOT file this nameplate passed 86.9% of 23,611 tests (20,355 passes, 3,073 fails). That is a test-outcome rate, not a prediction for any one car.
UK MOT · make×model
MERCEDES-BENZ SL
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
20,355 passes · 3,073 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 groupSuspension2,014 recorded items
02 · Failure groupBrakes1,869 recorded items
03 · Failure groupTyres1,690 recorded items
04 · Failure groupLamps, reflectors and electrical equipment1,670 recorded items
05 · Failure groupNoise, emissions and leaks838 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 |
|---|---|---|---|
| 5 | 365 | 93.7% | 20,095 mi |
| 6 | 441 | 90.9% | 25,390 mi |
| 7 | 708 | 91.0% | 29,967 mi |
| 8 | 842 | 91.9% | 35,254 mi |
| 9 | 921 | 87.7% | 41,060 mi |
| 10 | 1,176 | 89.1% | 47,670 mi |
| 11 | 1,281 | 85.8% | 49,108 mi |
| 12 | 476 | 86.8% | 50,010 mi |
| 13 | 286 | 89.2% | 51,663 mi |
| 14 | 402 | 84.8% | 60,695 mi |
| 15 | 547 | 84.5% | 62,259 mi |
| 16 | 868 | 86.6% | 65,017 mi |
| 17 | 892 | 84.1% | 71,443 mi |
| 18 | 913 | 83.1% | 75,149 mi |
| 19 | 1,273 | 85.0% | 76,288 mi |
| 20 | 2,068 | 85.9% | 76,746 mi |
| 21 | 2,699 | 83.9% | 76,433 mi |
| 22 | 1,077 | 84.9% | 76,399 mi |
| 23 | 311 | 87.5% | 77,822 mi |
| 24 | 553 | 85.2% | 85,023 mi |
| 25 | 609 | 85.9% | 83,148 mi |
| 26 | 770 | 84.8% | 89,442 mi |
| 27 | 744 | 86.7% | 94,229 mi |
| 28 | 630 | 87.6% | 93,831 mi |
| 29 | 582 | 84.9% | 98,626 mi |
| 30 | 439 | 86.6% | 95,211 mi |
| 31 | 177 | 86.4% | 87,660 mi |
| 32 | 131 | 87.0% | 90,049 mi |
| 33 | 115 | 85.2% | 83,961 mi |
| 34 | 73 | 83.6% | 87,143 mi |
| 35 | 182 | 84.6% | 84,069 mi |
| 36 | 154 | 86.4% | 80,990 mi |
| 37 | 123 | 87.0% | 84,672 mi |
| 38 | 156 | 84.0% | 96,250 mi |
| 39 | 202 | 85.2% | 94,341 mi |
| 40 | 144 | 81.3% | 95,769 mi |
| 41 | 80 | 87.5% | 92,659 mi |