2008 Mercedes-Benz B-Class · 13,105 MOT tests
2008 Mercedes-Benz B-Class reliability
2008 Mercedes-Benz B-Classs fail 43.6% of first MOT tests, 5% more MOT fails than the average car its age and mileage, ranking 14 of 16 B-Class years (13,105 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Mercedes-Benz B-Classs: 26.5%)
- 43.6%
- first-time fail rate (all Mercedes-Benz B-Classs: 26.5%)
- fails than cars of the same age and mileage
- 5% more
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 15
- 95,020
- typical miles at its MOT, aged about 15
- MOT tests, 2022 to 2024
- 13,105
- MOT tests, 2022 to 2024
Year on year
2008 against the years either side
- 2007 cars: 3% more MOT fails than the average car its age (the 2008 car does worse)
- 2009 cars: 3% more MOT fails than the average car its age (the 2008 car does worse)
- Weak spot: wheels, 1% of tests fail here (69% above cars of the same age and mileage).
- Strong point: steering, 66% fewer fails than comparable cars.
- Plates: a 2008 car carries a 57 plate (January–February 2008), or a 08 plate (March–August 2008), or a 58 plate (September–December 2008).
Common problems
What fails on a 2008 Mercedes-Benz B-Class
Fail rate by area
- Suspension18.4%
- Lights and electrics17.2%
- Brakes15.4%
- Body, chassis and structure10.9%
- Windscreen, wipers and mirrors9.3%
- Tyres6.6%
- Exhaust, emissions and leaks5.4%
Average for cars of the same age and mileage
Top failures
CV joint boot split or insecure 6.88%
A split CV boot lets dirt in and grease out, so the joint wears and may need full replacement.
Coil spring fractured or broken 6.63%
A broken coil spring can leave the car sitting low or unstable, so it must be replaced before driving.
Suspension ball joint excessively worn 5.1%
A worn ball joint can fail and cause loss of steering control, so it must be replaced promptly.
Rigid brake pipe excessively corroded 4.05%
Badly corroded brake pipes can leak or fail, which can cause a loss of braking, so repair is urgent.
Windscreen washer fluid insufficient 3.48%
Washers are not supplying enough liquid, so the windscreen cannot be cleared properly, which is a safety issue.
Parking brake efficiency below minimum 3.12%
The parking brake holds the car less well than required, so it may roll on a slope and needs repair.
Common advisories
Brake pipes corroded and greasy (19.73%) · Tyre worn close to legal limit (14.25%) · Brake disc pitted or scored (11.84%) · Tyre slightly damaged or cracking (9.77%) · Brake pads wearing thin (7.04%) · Coil spring showing some corrosion (5.6%)
Other years
Every Mercedes-Benz B-Class year
The full picture: Mercedes-Benz B-Class reliability. Before you pay for any Mercedes-Benz B-Class, 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 2008 Mercedes-Benz B-Class reliable?
2008 Mercedes-Benz B-Classs fail 43.6% of first MOT tests, 5% more MOT fails than the average car its age and mileage, ranking 14 of 16 B-Class years (13,105 DVSA tests, 2022 to 2024).
What fails on a 2008 Mercedes-Benz B-Class MOT?
Most often cv joint boot split or insecure (6.88% of tests), coil spring fractured or broken (6.63% of tests), suspension ball joint excessively worn (5.1% of tests).
How many miles should a 2008 Mercedes-Benz B-Class have done?
At its MOT aged about 15, a typical 2008 Mercedes-Benz B-Class shows 95,020 miles. Much higher or lower is worth asking about.
What plate is a 2008 car?
A car first registered in 2008 carries a 57 plate (January–February 2008), or a 08 plate (March–August 2008), or a 58 plate (September–December 2008).
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