2020 Mercedes-Benz A-Class · 72,733 MOT tests
2020 Mercedes-Benz A-Class reliability
2020 Mercedes-Benz A-Classs fail 9.7% of first MOT tests, 24% fewer MOT fails than the average car its age and mileage, ranking 2 of 22 A-Class years (72,733 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Mercedes-Benz A-Classs: 20.6%)
- 9.7%
- first-time fail rate (all Mercedes-Benz A-Classs: 20.6%)
- fails than cars of the same age and mileage
- 24% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 3
- 29,891
- typical miles at its MOT, aged about 3
- MOT tests, 2022 to 2024
- 72,733
- MOT tests, 2022 to 2024
Year on year
2020 against the years either side
- 2019 cars: 11% fewer MOT fails than the average car its age (the 2020 car does better)
- 2021 cars: 32% fewer MOT fails than the average car its age (the 2020 car does worse)
- Strong point: windscreen, wipers and mirrors, 54% fewer fails than comparable cars.
- Plates: a 2020 car carries a 69 plate (January–February 2020), or a 20 plate (March–August 2020), or a 70 plate (September–December 2020).
Common problems
What fails on a 2020 Mercedes-Benz A-Class
Fail rate by area
- Tyres4.5%
- Brakes1.6%
- Windscreen, wipers and mirrors1.5%
- Lights and electrics1.4%
- Suspension0.7%
- Exhaust, emissions and leaks0.5%
- Number plates and VIN0.3%
Average for cars of the same age and mileage
Top failures
Tyre cut reaching ply or cords 1.15%
A cut reaching the ply or cords weakens the tyre and can cause a burst, so it must be replaced.
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.
Brake pads worn below 1.5mm 0.67%
Pads worn below 1.5mm lose stopping power and can damage discs, so replacement is needed before the car is driven.
Tyre ply or cords exposed 0.59%
Exposed ply or cords can let the tyre fail suddenly, so the tyre must be replaced before the car is driven.
Wiper blade not clearing windscreen 0.46%
Wipers that do not clear the windscreen reduce visibility in rain, which is a safety risk, so replace them.
Windscreen washer fluid insufficient 0.33%
Washers are not supplying enough liquid, so the windscreen cannot be cleared properly, which is a safety issue.
Common advisories
Tyre worn close to legal limit (7.61%) · Brake pads wearing thin (3.7%) · Tyre slightly damaged or cracking (3.58%) · Brake disc pitted or scored (1.33%) · Brake discs showing some wear (1.32%) · Tyre worn close to legal limit (1.22%)
Other years
Every Mercedes-Benz A-Class year
The full picture: Mercedes-Benz A-Class reliability. Before you pay for any Mercedes-Benz A-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 2020 Mercedes-Benz A-Class reliable?
2020 Mercedes-Benz A-Classs fail 9.7% of first MOT tests, 24% fewer MOT fails than the average car its age and mileage, ranking 2 of 22 A-Class years (72,733 DVSA tests, 2022 to 2024).
What fails on a 2020 Mercedes-Benz A-Class MOT?
Most often tyre cut reaching ply or cords (1.15% of tests), tyre tread below 1.6mm (1.02% of tests), brake pads worn below 1.5mm (0.67% of tests).
How many miles should a 2020 Mercedes-Benz A-Class have done?
At its MOT aged about 3, a typical 2020 Mercedes-Benz A-Class shows 29,891 miles. Much higher or lower is worth asking about.
What plate is a 2020 car?
A car first registered in 2020 carries a 69 plate (January–February 2020), or a 20 plate (March–August 2020), or a 70 plate (September–December 2020).
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