2020 Mercedes-Benz SLC · 1,148 MOT tests
2020 Mercedes-Benz SLC reliability
2020 Mercedes-Benz SLCs fail 6.8% of first MOT tests, 31% fewer MOT fails than the average car its age and mileage, ranking 1 of 5 SLC years (1,148 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Mercedes-Benz SLCs: 11.8%)
- 6.8%
- first-time fail rate (all Mercedes-Benz SLCs: 11.8%)
- fails than cars of the same age and mileage
- 31% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 3
- 16,030
- typical miles at its MOT, aged about 3
- MOT tests, 2022 to 2024
- 1,148
- MOT tests, 2022 to 2024
Year on year
2020 against the years either side
- 2019 cars: 27% fewer MOT fails than the average car its age (the 2020 car does better)
- Weak spot: tyres, 4.4% of tests fail here (32% above cars of the same age and mileage).
- Strong point: lights and electrics, 55% 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 SLC
Fail rate by area
- Tyres4.4%
- Lights and electrics1%
- Suspension0.4%
- Number plates and VIN0.4%
- Wheels0.3%
- Exhaust, emissions and leaks0.3%
- Windscreen, wipers and mirrors0.2%
Average for cars of the same age and mileage
Top failures
Tyre ply or cords exposed 0.87%
Exposed ply or cords can let the tyre fail suddenly, so the tyre must be replaced before the car is driven.
Tyre cut reaching ply or cords 0.7%
A cut reaching the ply or cords weakens the tyre and can cause a burst, so it must be replaced.
Tyre bulge from structural failure 0.61%
A bulge means the tyre's structure has failed and it could burst suddenly, so it must be replaced at once.
Tyre tread below 1.6mm 0.35%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Number plate does not meet standards 0.35%
The plate does not meet legal specifications, so it must be replaced with a compliant one before the car is driven.
Tyre tear from structural failure 0.26%
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 (4.79%) · Tyre slightly damaged or cracking (3.31%) · Tyre has a shallow cut (1.57%) · Tyre worn close to legal limit (0.96%) · Road wheel slightly distorted (0.61%) · Brake pads wearing thin (0.52%)
Other years
Every Mercedes-Benz SLC year
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Source: DVSA anonymised MOT results, 2022 to 2024, class 4 normal tests.
Is a 2020 Mercedes-Benz SLC reliable?
2020 Mercedes-Benz SLCs fail 6.8% of first MOT tests, 31% fewer MOT fails than the average car its age and mileage, ranking 1 of 5 SLC years (1,148 DVSA tests, 2022 to 2024).
What fails on a 2020 Mercedes-Benz SLC MOT?
Most often tyre ply or cords exposed (0.87% of tests), tyre cut reaching ply or cords (0.7% of tests), tyre bulge from structural failure (0.61% of tests).
How many miles should a 2020 Mercedes-Benz SLC have done?
At its MOT aged about 3, a typical 2020 Mercedes-Benz SLC shows 16,030 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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