Common problems by part
Mercedes-Benz SLK road wheels problems
DVSA MOT tests 2022–2025 · 20,060 MOT tests · Updated
At 10 years, 0.4 in 100 MOT tests of the Mercedes-Benz SLK failed on road wheels, against 0.4 for all class 4 vehicles the same age (all test years; 20,060 MOT tests) [1].
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- Against all class 4 vehicles the same age: about average for all class 4 vehicles the same age (all test years), 75 MOT tests with a fail
- By age: seen at 20 ages from 6 to 25 years, 227,766 MOT tests
- MOT tests at 10 years: 20,060 for the Mercedes-Benz SLK
Figures are for the model as a whole, not for one car.
What the MOT tests show
What we know
0.4 fails per 100 MOT tests at 10 years, against 0.4 for all class 4 vehicles tested at 10 (all test years). That is about average.
Why it matters
A road wheels fail stops the car passing until it is fixed.
What to check
Look for cracked or badly kerbed rims and check that every wheel nut is present; a vibration through the wheel at speed points to a bent rim or balance.
Mercedes-Benz SLK road wheels fails by age
| Age | MOT tests | Fails per 100 | All class 4 vehicles the same age |
|---|---|---|---|
| 6 | 1,253 | 0.3 | 0.2 |
| 7 | 6,178 | 0.1 | 0.3 |
| 8 | 11,010 | 0.3 | 0.3 |
| 9 | 15,740 | 0.3 | 0.4 |
| 10 | 20,060 | 0.4 | 0.4 |
| 11 | 17,549 | 0.4 | 0.4 |
| 12 | 14,761 | 0.4 | 0.5 |
| 13 | 12,711 | 0.5 | 0.5 |
| 14 | 10,401 | 0.5 | 0.6 |
| 15 | 11,496 | 0.4 | 0.6 |
| 16 | 13,133 | 0.4 | 0.6 |
| 17 | 15,710 | 0.4 | 0.6 |
| 18 | 15,597 | 0.5 | 0.5 |
| 19* | 13,649 | 0.5 | 0.5 |
| 20* | 11,760 | 0.4 | 0.4 |
| 21* | 9,253 | 0.3 | 0.4 |
| 22* | 8,197 | 0.4 | 0.4 |
| 23* | 7,658 | 0.4 | 0.3 |
| 24* | 6,664 | 0.4 | 0.3 |
| 25* | 4,986 | 0.4 | 0.3 |
All first-use years of the Mercedes-Benz SLK pooled at each age, against all class 4 vehicles at that age over all 2022–2025 test years. * Only survivors are still tested at this age.
What fails in the road wheels at 10 years
Advisories (not fails)
- Road wheel condition: slightly distorted: 1.6 advisories per 100 MOT tests, all class 4 vehicles 0.8. Road wheel slightly distorted MOT advisory
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- Model risks for this year and fuel
- What similar cars did at their next MOT
- Repairs ahead
- Viewing checklist
By engine and fuel
- 1.8 petrol: 0.2 per 100 at 10 years, about average for petrol class 4 vehicles the same age (all test years; 5,758 MOT tests)
- 2.1 diesel: 0.4 per 100 at 10 years, about average for diesel class 4 vehicles the same age (all test years; 12,495 MOT tests)
How to check on a test drive
Look for cracked or badly kerbed rims and check that every wheel nut is present; a vibration through the wheel at speed points to a bent rim or balance.
The most common advisory here in MOT records: Road wheel condition: slightly distorted.
Check one Mercedes-Benz SLK, not the average
The figures here describe Mercedes-Benz SLK cars as a group. These free tools answer for one car. Each line says what the tool reads.
- Check a Mercedes-Benz SLK's MOT history Every MOT test, fail item, advisory and mileage reading DVSA holds for that registration.
- MOT advisory checker Paste an advisory or defect to read DVSA's wording, its grade and what tends to happen at the next MOT.
Other Mercedes-Benz SLK problems
Road wheels on rival models
- Audi TT road wheels problems: 0.2 per 100 MOT tests at 10 years, against 0.4 for the Mercedes-Benz SLK (24,683 MOT tests)
- Volkswagen Scirocco road wheels problems: 0.7 per 100 MOT tests at 10 years, against 0.4 for the Mercedes-Benz SLK (18,135 MOT tests)
- BMW 6 Series road wheels problems: 1.2 per 100 MOT tests at 10 years, against 0.4 for the Mercedes-Benz SLK (7,674 MOT tests)
Questions people ask
Does the Mercedes-Benz SLK have more road wheels problems than other cars?
0.4 in 100 MOT tests at 10 years, against 0.4 for all class 4 vehicles the same age: about average by our test (all test years; 20,060 MOT tests).
How common are Mercedes-Benz SLK road wheels problems?
0.4 in 100 MOT tests at 10 years failed on road wheels, against 0.4 for all class 4 vehicles the same age (all test years; 20,060 MOT tests).
Sources
- Driver and Vehicle Standards Agency, Anonymised MOT tests and results, 2022 to 2025. DVSA MOT data, Open Government Licence v3.0, 227,766 MOT tests. Accessed 7 Oct 2026.
Parts: against all class 4 vehicles at the same age, all 2022–2025 test years pooled, not adjusted for mileage. Breakdowns and non-MOT faults are not in this data. How we compare