2019 Mercedes-Benz B-Class · 12,153 MOT tests
2019 Mercedes-Benz B-Class reliability
2019 Mercedes-Benz B-Classs fail 9.8% of first MOT tests, 18% fewer MOT fails than the average car its age and mileage, ranking 2 of 16 B-Class years (12,153 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Mercedes-Benz B-Classs: 26.5%)
- 9.8%
- first-time fail rate (all Mercedes-Benz B-Classs: 26.5%)
- fails than cars of the same age and mileage
- 18% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 4
- 23,882
- typical miles at its MOT, aged about 4
- MOT tests, 2022 to 2024
- 12,153
- MOT tests, 2022 to 2024
Year on year
2019 against the years either side
- 2018 cars: 9% fewer MOT fails than the average car its age (the 2019 car does better)
- 2020 cars: 34% fewer MOT fails than the average car its age (the 2019 car does worse)
- Weak spot: seat belts and airbags, 1.3% of tests fail here (379% above cars of the same age and mileage).
- Strong point: windscreen, wipers and mirrors, 62% fewer fails than comparable cars.
- Plates: a 2019 car carries a 68 plate (January–February 2019), or a 19 plate (March–August 2019), or a 69 plate (September–December 2019).
Common problems
What fails on a 2019 Mercedes-Benz B-Class
Fail rate by area
- Tyres4.7%
- Lights and electrics2%
- Seat belts and airbags1.3%
- Windscreen, wipers and mirrors1.2%
- Brakes0.9%
- Suspension0.4%
- Exhaust, emissions and leaks0.2%
Average for cars of the same age and mileage
Top failures
Tyre cut reaching ply or cords 1.65%
A cut reaching the ply or cords weakens the tyre and can cause a burst, so it must be replaced.
Airbag warning lamp shows fault 0.83%
A lit airbag warning means the airbag system may not deploy in a crash, so it needs diagnosing and repairing.
Tyre tread below 1.6mm 0.81%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Wiper blade not clearing windscreen 0.74%
Wipers that do not clear the windscreen reduce visibility in rain, which is a safety risk, so replace them.
Headlamp aim set too low 0.69%
Headlamps aimed too low light the road poorly and reduce the driver's view ahead, especially at night.
Tyre ply or cords exposed 0.67%
Exposed ply or cords can let the tyre fail suddenly, so the tyre must be replaced before the car is driven.
Common advisories
Tyre worn close to legal limit (9.01%) · Tyre slightly damaged or cracking (5.39%) · Brake pads wearing thin (3.13%) · Tyre has a shallow cut (1.6%) · Tyre worn close to legal limit (1.5%) · Brake disc pitted or scored (1.42%)
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 2019 Mercedes-Benz B-Class reliable?
2019 Mercedes-Benz B-Classs fail 9.8% of first MOT tests, 18% fewer MOT fails than the average car its age and mileage, ranking 2 of 16 B-Class years (12,153 DVSA tests, 2022 to 2024).
What fails on a 2019 Mercedes-Benz B-Class MOT?
Most often tyre cut reaching ply or cords (1.65% of tests), airbag warning lamp shows fault (0.83% of tests), tyre tread below 1.6mm (0.81% of tests).
How many miles should a 2019 Mercedes-Benz B-Class have done?
At its MOT aged about 4, a typical 2019 Mercedes-Benz B-Class shows 23,882 miles. Much higher or lower is worth asking about.
What plate is a 2019 car?
A car first registered in 2019 carries a 68 plate (January–February 2019), or a 19 plate (March–August 2019), or a 69 plate (September–December 2019).
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