2021 Mercedes-Benz E-Class · 4,755 MOT tests
2021 Mercedes-Benz E-Class reliability
2021 Mercedes-Benz E-Classs fail 9.7% of first MOT tests, 30% fewer MOT fails than the average car its age and mileage, ranking 4 of 24 E-Class years (4,755 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Mercedes-Benz E-Classs: 21%)
- 9.7%
- first-time fail rate (all Mercedes-Benz E-Classs: 21%)
- fails than cars of the same age and mileage
- 30% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 3
- 34,360
- typical miles at its MOT, aged about 3
- MOT tests, 2022 to 2024
- 4,755
- MOT tests, 2022 to 2024
Year on year
2021 against the years either side
- 2020 cars: 16% fewer MOT fails than the average car its age (the 2021 car does better)
- Weak spot: wheels, 2.3% of tests fail here (1151% above cars of the same age and mileage).
- Plates: a 2021 car carries a 70 plate (January–February 2021), or a 21 plate (March–August 2021), or a 71 plate (September–December 2021).
Common problems
What fails on a 2021 Mercedes-Benz E-Class
Fail rate by area
- Tyres5.6%
- Wheels2.3%
- Lights and electrics0.8%
- Windscreen, wipers and mirrors0.7%
- Brakes0.6%
- Exhaust, emissions and leaks0.3%
- Suspension0.2%
Average for cars of the same age and mileage
Top failures
Road wheel fractured or welded defect 1.14%
A fractured wheel can fail suddenly and cause loss of control, so it must be replaced before driving.
Tyre cut reaching ply or cords 1.09%
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 0.82%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Tyre ply or cords exposed 0.76%
Exposed ply or cords can let the tyre fail suddenly, so the tyre must be replaced before the car is driven.
Tyre bulge from structural failure 0.63%
A bulge means the tyre's structure has failed and it could burst suddenly, so it must be replaced at once.
Tyre tear from structural failure 0.29%
A tear in the tyre's structure means it can fail suddenly, so it must be replaced before the car is driven.
Common advisories
Tyre worn close to legal limit (4.14%) · Brake pads wearing thin (1.68%) · Tyre has a shallow cut (1.16%) · Tyre slightly damaged or cracking (0.84%) · Tyre worn close to legal limit (0.78%) · Brake disc pitted or scored (0.72%)
Other years
Every Mercedes-Benz E-Class year
The full picture: Mercedes-Benz E-Class reliability. Before you pay for any Mercedes-Benz E-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 2021 Mercedes-Benz E-Class reliable?
2021 Mercedes-Benz E-Classs fail 9.7% of first MOT tests, 30% fewer MOT fails than the average car its age and mileage, ranking 4 of 24 E-Class years (4,755 DVSA tests, 2022 to 2024).
What fails on a 2021 Mercedes-Benz E-Class MOT?
Most often road wheel fractured or welded defect (1.14% of tests), tyre cut reaching ply or cords (1.09% of tests), tyre tread below 1.6mm (0.82% of tests).
How many miles should a 2021 Mercedes-Benz E-Class have done?
At its MOT aged about 3, a typical 2021 Mercedes-Benz E-Class shows 34,360 miles. Much higher or lower is worth asking about.
What plate is a 2021 car?
A car first registered in 2021 carries a 70 plate (January–February 2021), or a 21 plate (March–August 2021), or a 71 plate (September–December 2021).
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