2011 Mercedes-Benz SLK · 9,627 MOT tests
2011 Mercedes-Benz SLK reliability
2011 Mercedes-Benz SLKs fail 20.7% of first MOT tests, 31% fewer MOT fails than the average car its age and mileage, ranking 1 of 20 SLK years (9,627 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Mercedes-Benz SLKs: 25.9%)
- 20.7%
- first-time fail rate (all Mercedes-Benz SLKs: 25.9%)
- fails than cars of the same age and mileage
- 31% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 12
- 55,025
- typical miles at its MOT, aged about 12
- MOT tests, 2022 to 2024
- 9,627
- MOT tests, 2022 to 2024
Year on year
2011 against the years either side
- 2010 cars: 15% fewer MOT fails than the average car its age (the 2011 car does better)
- 2012 cars: 25% fewer MOT fails than the average car its age (the 2011 car does better)
- Strong point: windscreen, wipers and mirrors, 68% fewer fails than comparable cars.
- Plates: a 2011 car carries a 60 plate (January–February 2011), or a 11 plate (March–August 2011), or a 61 plate (September–December 2011).
Common problems
What fails on a 2011 Mercedes-Benz SLK
Fail rate by area
- Suspension9.6%
- Tyres5.5%
- Brakes4.9%
- Lights and electrics4.2%
- Windscreen, wipers and mirrors1.5%
- Exhaust, emissions and leaks1.1%
- Body, chassis and structure0.6%
Average for cars of the same age and mileage
Top failures
Coil spring fractured or broken 3.8%
A broken coil spring can leave the car sitting low or unstable, so it must be replaced before driving.
Rigid brake pipe excessively corroded 1.65%
Badly corroded brake pipes can leak or fail, which can cause a loss of braking, so repair is urgent.
Tyre tread below 1.6mm 1.63%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Suspension ball joint excessively worn 1.36%
A worn ball joint can fail and cause loss of steering control, so it must be replaced promptly.
Tyre ply or cords exposed 1.27%
Exposed ply or cords can let the tyre fail suddenly, so the tyre must be replaced before the car is driven.
Anti-roll bar linkage dust cover unsealed 1.11%
A damaged dust cover lets dirt into the linkage joint, speeding wear and possibly needing a future repair.
Common advisories
Tyre worn close to legal limit (11.7%) · Brake pipes corroded and greasy (8.64%) · Brake disc pitted or scored (6.27%) · Tyre slightly damaged or cracking (5.61%) · Brake pads wearing thin (4.26%) · Wheel bearing slight play (2.46%)
Other years
Every Mercedes-Benz SLK year
The full picture: Mercedes-Benz SLK reliability. Before you pay for any Mercedes-Benz SLK, a Full Check (£9.99) shows finance, stolen and write-off records the MOT can't.
Source: DVSA anonymised MOT results, 2022 to 2024, class 4 normal tests.
Is a 2011 Mercedes-Benz SLK reliable?
2011 Mercedes-Benz SLKs fail 20.7% of first MOT tests, 31% fewer MOT fails than the average car its age and mileage, ranking 1 of 20 SLK years (9,627 DVSA tests, 2022 to 2024).
What fails on a 2011 Mercedes-Benz SLK MOT?
Most often coil spring fractured or broken (3.8% of tests), rigid brake pipe excessively corroded (1.65% of tests), tyre tread below 1.6mm (1.63% of tests).
How many miles should a 2011 Mercedes-Benz SLK have done?
At its MOT aged about 12, a typical 2011 Mercedes-Benz SLK shows 55,025 miles. Much higher or lower is worth asking about.
What plate is a 2011 car?
A car first registered in 2011 carries a 60 plate (January–February 2011), or a 11 plate (March–August 2011), or a 61 plate (September–December 2011).
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