2020 Mercedes-Benz GLC · 24,637 MOT tests
2020 Mercedes-Benz GLC reliability
2020 Mercedes-Benz GLCs fail 8.2% of first MOT tests, 38% fewer MOT fails than the average car its age and mileage, ranking 2 of 7 GLC years (24,637 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Mercedes-Benz GLCs: 11.3%)
- 8.2%
- first-time fail rate (all Mercedes-Benz GLCs: 11.3%)
- fails than cars of the same age and mileage
- 38% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 3
- 32,758
- typical miles at its MOT, aged about 3
- MOT tests, 2022 to 2024
- 24,637
- MOT tests, 2022 to 2024
Year on year
2020 against the years either side
- 2019 cars: 33% fewer MOT fails than the average car its age (the 2020 car does better)
- 2021 cars: 46% fewer MOT fails than the average car its age (the 2020 car does worse)
- Strong point: windscreen, wipers and mirrors, 67% 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 GLC
Fail rate by area
- Tyres4.5%
- Windscreen, wipers and mirrors1.1%
- Brakes1.1%
- Lights and electrics0.9%
- Suspension0.7%
- Number plates and VIN0.3%
- Seat belts and airbags0.2%
Average for cars of the same age and mileage
Top failures
Tyre cut reaching ply or cords 1.17%
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 0.75%
Exposed ply or cords can let the tyre fail suddenly, so the tyre must be replaced before the car is driven.
Brake pads worn below 1.5mm 0.39%
Pads worn below 1.5mm lose stopping power and can damage discs, so replacement is needed before the car is driven.
Suspension ball joint excessively worn 0.38%
A worn ball joint can fail and cause loss of steering control, so it must be replaced promptly.
Brake pads worn to wear indicator 0.34%
Pads worn to the indicator are at their limit, reducing braking and needing immediate replacement.
Common advisories
Tyre worn close to legal limit (8.26%) · Brake pads wearing thin (3.59%) · Tyre slightly damaged or cracking (2.07%) · Child seat limits belt inspection (1.72%) · Suspension ball joint slight play (1.41%) · Brake disc pitted or scored (1.36%)
Other years
Every Mercedes-Benz GLC year
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Source: DVSA anonymised MOT results, 2022 to 2024, class 4 normal tests.
Is a 2020 Mercedes-Benz GLC reliable?
2020 Mercedes-Benz GLCs fail 8.2% of first MOT tests, 38% fewer MOT fails than the average car its age and mileage, ranking 2 of 7 GLC years (24,637 DVSA tests, 2022 to 2024).
What fails on a 2020 Mercedes-Benz GLC MOT?
Most often tyre cut reaching ply or cords (1.17% of tests), tyre tread below 1.6mm (0.82% of tests), tyre ply or cords exposed (0.75% of tests).
How many miles should a 2020 Mercedes-Benz GLC have done?
At its MOT aged about 3, a typical 2020 Mercedes-Benz GLC shows 32,758 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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