Mercedes-Benz Clk vs Mercedes-Benz SLK
On MOT-testable defects, the Mercedes-Benz SLK (fail rate 19.4%) performed better than the Mercedes-Benz Clk (25.3%) across comparable years. The biggest divergence was suspension, where the Clk recorded failures more often.
25.3%
Clk fail rate
19.4%
SLK fail rate
5.89pp
Difference
Side by side
| Metric | Mercedes-Benz Clk | Mercedes-Benz SLK |
|---|---|---|
| MOT tests analysed | 204,964 | 354,328 |
| Pass rate | 74.7% | 80.5% |
| Fail rate | 25.3% | 19.4% |
Where they differ
| Category | Clk | SLK |
|---|---|---|
| Suspension | 14.7% | 9.1% |
| Lighting & signalling | 11.2% | 7.0% |
| Brakes | 8.2% | 5.1% |
| Visibility | 4.2% | 2.6% |
| Tyres | 6.1% | 5.1% |
Methodology & source. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.