MERCEDES-BENZ SLK MOT pass rate
78.9% of 105,495 MERCEDES-BENZ SLK MOT tests pass.
At 78.9%, The SLK passes slightly less often than the average across all MERCEDES-BENZ models (83.5%).
The MERCEDES-BENZ SLK's pass rate of 78.9% is in line with the national average for cars, at 79.2%.
Own this MERCEDES-BENZ SLK?
This is the average across every MERCEDES-BENZ SLK in the dataset. Look up your own registration for its actual MOT history, and a free place to keep its maintenance records.
How to check and keep your MERCEDES-BENZ’s service history →
Pass rate by vehicle age
Pass rate declines noticeably with age, from 85.9% at 6–10 years to 75.5% at 15+ years.
| Vehicle age | Pass rate | Tests | Average mileage |
|---|---|---|---|
| 0–3 years | no tests recorded | 0 | no reading |
| 3–6 years | too few tests (2) | 2 | no reading |
| 6–10 years | 85.9% | 16,542 | 48,179 miles |
| 10–15 years | 80.8% | 35,065 | 62,388 miles |
| 15+ years | 75.5% | 53,886 | 82,196 miles |
Common MOT failure reasons for the MERCEDES-BENZ SLK
The most common reason the MERCEDES-BENZ SLK fails its MOT is suspension — present in 47.9% of failed tests, most often logged as "Fractured or broken".
| Category | Share of failed tests | Example |
|---|---|---|
| Suspension | 47.9% | Fractured or broken |
| Lamps, reflectors and electrical equipment | 39.2% | Not working |
| Brakes | 29.4% | Excessively corroded |
| Tyres | 23.4% | Tread depth below requirements of 1.6mm |
| Visibility | 11.2% | Does not clear the windscreen effectively |
| Noise, emissions and leaks | 10.5% | Inoperative or indicates a malfunction |
| Body, chassis, structure | 5.0% | Has a major leak of exhaust gases |
| Seat belts and supplementary restraint systems | 3.9% | Warning lamp indicates a fault |
| Steering | 3.3% | Ball joint has excessive play |
| Road Wheels | 1.7% | Fixing missing |
Related MERCEDES-BENZ models
- MERCEDES-BENZ C-CLASS — 81.4% pass rate
- MERCEDES-BENZ A-CLASS — 85.3% pass rate
- MERCEDES-BENZ E-CLASS — 83.3% pass rate
- MERCEDES-BENZ GLA — 89.4% pass rate
- MERCEDES-BENZ GLC — 91.1% pass rate
- MERCEDES-BENZ CLA — 87.2% pass rate
Frequently asked questions
- What is the MOT pass rate for the MERCEDES-BENZ SLK?
- 78.9% of MERCEDES-BENZ SLK MOT tests pass, based on 105,495 tests in the DVSA anonymised MOT tests and results dataset.
- What are the most common MOT failures for the MERCEDES-BENZ SLK?
- The most common reason the MERCEDES-BENZ SLK fails its MOT is suspension — present in 47.9% of failed tests, most often logged as "Fractured or broken".
- Does this show the MERCEDES-BENZ SLK's service history?
- No — this is MOT test data, which covers roadworthiness, not servicing. A service history is a separate record of maintenance work, which a specific car only has if its owner has kept it. See the MERCEDES-BENZ service history guide for how to check and keep one.