2017 Mercedes-Benz B-Class · 19,902 MOT tests
2017 Mercedes-Benz B-Class reliability
2017 Mercedes-Benz B-Classs fail 14.9% of first MOT tests, 10% fewer MOT fails than the average car its age and mileage, ranking 8 of 16 B-Class years (19,902 DVSA tests, 2022 to 2024).
Looking at a 2017 Mercedes-Benz B-Class?
See its own MOT history and mileage, free.
- first-time fail rate (all Mercedes-Benz B-Classs: 26.5%)
- 14.9%
- first-time fail rate (all Mercedes-Benz B-Classs: 26.5%)
- fails than cars of the same age and mileage
- 10% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 6
- 38,520
- typical miles at its MOT, aged about 6
- MOT tests, 2022 to 2024
- 19,902
- MOT tests, 2022 to 2024
Year on year
2017 against the years either side
- 2016 cars: 13% fewer MOT fails than the average car its age (the 2017 car does worse)
- 2018 cars: 9% fewer MOT fails than the average car its age (the 2017 car does better)
- Weak spot: tyres, 6.3% of tests fail here (25% above cars of the same age and mileage).
- Strong point: brakes, 41% fewer fails than comparable cars.
- Plates: a 2017 car carries a 66 plate (January–February 2017), or a 17 plate (March–August 2017), or a 67 plate (September–December 2017).
Common problems
What fails on a 2017 Mercedes-Benz B-Class
Fail rate by area
- Tyres6.3%
- Lights and electrics4%
- Windscreen, wipers and mirrors1.9%
- Brakes1.8%
- Suspension1.8%
- Exhaust, emissions and leaks1.2%
- Wheels0.5%
Average for cars of the same age and mileage
Top failures
Registration plate lamp not working 1.81%
A dark number plate lamp makes the plate hard to read at night, which is illegal and must be fixed.
Tyre cut reaching ply or cords 1.6%
A cut reaching the ply or cords weakens the tyre and can cause a burst, so it must be replaced.
Tyre ply or cords exposed 1.41%
Exposed ply or cords can let the tyre fail suddenly, so the tyre must be replaced before the car is driven.
Coil spring fractured or broken 1.12%
A broken coil spring can leave the car sitting low or unstable, so it must be replaced before driving.
Tyre tread below 1.6mm 1.02%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Tyre bulge from structural failure 0.86%
A bulge means the tyre's structure has failed and it could burst suddenly, so it must be replaced at once.
Common advisories
Tyre worn close to legal limit (10.62%) · Tyre slightly damaged or cracking (9.71%) · Brake pads wearing thin (6.57%) · Brake disc pitted or scored (3.89%) · Brake discs showing some wear (2.56%) · Tyre has a shallow cut (2.42%)
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 2017 Mercedes-Benz B-Class reliable?
2017 Mercedes-Benz B-Classs fail 14.9% of first MOT tests, 10% fewer MOT fails than the average car its age and mileage, ranking 8 of 16 B-Class years (19,902 DVSA tests, 2022 to 2024).
What fails on a 2017 Mercedes-Benz B-Class MOT?
Most often registration plate lamp not working (1.81% of tests), tyre cut reaching ply or cords (1.6% of tests), tyre ply or cords exposed (1.41% of tests).
How many miles should a 2017 Mercedes-Benz B-Class have done?
At its MOT aged about 6, a typical 2017 Mercedes-Benz B-Class shows 38,520 miles. Much higher or lower is worth asking about.
What plate is a 2017 car?
A car first registered in 2017 carries a 66 plate (January–February 2017), or a 17 plate (March–August 2017), or a 67 plate (September–December 2017).
Check a 2017 Mercedes-Benz B-Class free
MOT history, mileage record, ULEZ, tax and recalls on any UK car, in seconds. No sign-up, no card.