Mercedes-Benz Clk vs Mercedes-Benz Slk: MOT reliability compared
Updated 05 September 2026.
20.0%
Mercedes-Benz Slk MOT failure rate, 5.4 pts lower than Mercedes-Benz Clk
Mercedes-Benz Slk is the more reliable MOT performer: 20.0% of Mercedes-Benz Slk MOTs fail versus 25.4% for Mercedes-Benz Clk, a 5.4 point gap.
| Metric | Mercedes-Benz Clk | Mercedes-Benz Slk |
|---|---|---|
| MOT failure rate | 25.4% | 20.0% |
| Tests analysed | 1,413,565 | 1,343,757 |
| Most common failure | Suspension (39.6%) | Suspension (28.8%) |
Questions and answers
Which is more reliable, Mercedes-Benz Clk or Mercedes-Benz Slk?
Mercedes-Benz Slk is the more reliable MOT performer: 20.0% of Mercedes-Benz Slk MOTs fail versus 25.4% for Mercedes-Benz Clk, a 5.4 point gap.
What is the MOT failure rate of the Mercedes-Benz Clk?
25.4% of Mercedes-Benz Clk MOT tests result in a failure, from 1,413,565 tests.
What is the MOT failure rate of the Mercedes-Benz Slk?
20.0% of Mercedes-Benz Slk MOT tests result in a failure, from 1,343,757 tests.