2009 Mercedes-Benz CLK · 10,716 MOT tests
2009 Mercedes-Benz CLK reliability
2009 Mercedes-Benz CLKs fail 37.1% of first MOT tests, 7% fewer MOT fails than the average car its age and mileage, ranking 11 of 12 CLK years (10,716 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Mercedes-Benz CLKs: 36.7%)
- 37.1%
- first-time fail rate (all Mercedes-Benz CLKs: 36.7%)
- fails than cars of the same age and mileage
- 7% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 14
- 90,028
- typical miles at its MOT, aged about 14
- MOT tests, 2022 to 2024
- 10,716
- MOT tests, 2022 to 2024
Year on year
2009 against the years either side
- 2008 cars: 10% fewer MOT fails than the average car its age (the 2009 car does worse)
- 2010 cars: 9% fewer MOT fails than the average car its age (the 2009 car does worse)
- Weak spot: suspension, 21.2% of tests fail here (36% above cars of the same age and mileage).
- Strong point: body, chassis and structure, 60% fewer fails than comparable cars.
- Plates: a 2009 car carries a 58 plate (January–February 2009), or a 09 plate (March–August 2009), or a 59 plate (September–December 2009).
Common problems
What fails on a 2009 Mercedes-Benz CLK
Fail rate by area
- Suspension21.2%
- Brakes10.3%
- Lights and electrics10.3%
- Tyres9%
- Windscreen, wipers and mirrors5.2%
- Exhaust, emissions and leaks3.3%
- Steering2.7%
Average for cars of the same age and mileage
Top failures
Suspension ball joint excessively worn 7.94%
A worn ball joint can fail and cause loss of steering control, so it must be replaced promptly.
Coil spring fractured or broken 7.02%
A broken coil spring can leave the car sitting low or unstable, so it must be replaced before driving.
Tyre tread below 1.6mm 3.08%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Rigid brake pipe excessively corroded 2.45%
Badly corroded brake pipes can leak or fail, which can cause a loss of braking, so repair is urgent.
Parking brake efficiency below minimum 2.28%
The parking brake holds the car less well than required, so it may roll on a slope and needs repair.
Anti-roll bar linkage dust cover unsealed 2.14%
A damaged dust cover lets dirt into the linkage joint, speeding wear and possibly needing a future repair.
Common advisories
Brake pipes corroded and greasy (16.97%) · Tyre worn close to legal limit (14.72%) · Brake disc pitted or scored (8.27%) · Brake pads wearing thin (7.56%) · Suspension arm pin/bush showing wear (6.05%) · Suspension ball joint slight play (5.12%)
Other years
Every Mercedes-Benz CLK year
The full picture: Mercedes-Benz CLK reliability. Before you pay for any Mercedes-Benz CLK, 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 2009 Mercedes-Benz CLK reliable?
2009 Mercedes-Benz CLKs fail 37.1% of first MOT tests, 7% fewer MOT fails than the average car its age and mileage, ranking 11 of 12 CLK years (10,716 DVSA tests, 2022 to 2024).
What fails on a 2009 Mercedes-Benz CLK MOT?
Most often suspension ball joint excessively worn (7.94% of tests), coil spring fractured or broken (7.02% of tests), tyre tread below 1.6mm (3.08% of tests).
How many miles should a 2009 Mercedes-Benz CLK have done?
At its MOT aged about 14, a typical 2009 Mercedes-Benz CLK shows 90,028 miles. Much higher or lower is worth asking about.
What plate is a 2009 car?
A car first registered in 2009 carries a 58 plate (January–February 2009), or a 09 plate (March–August 2009), or a 59 plate (September–December 2009).
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