2017 Mercedes-Benz SL · 2,852 MOT tests
2017 Mercedes-Benz SL reliability
2017 Mercedes-Benz SLs fail 7.1% of first MOT tests, 50% fewer MOT fails than the average car its age and mileage, ranking 11 of 23 SL years (2,852 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Mercedes-Benz SLs: 15.3%)
- 7.1%
- first-time fail rate (all Mercedes-Benz SLs: 15.3%)
- fails than cars of the same age and mileage
- 50% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 6
- 25,344
- typical miles at its MOT, aged about 6
- MOT tests, 2022 to 2024
- 2,852
- MOT tests, 2022 to 2024
Year on year
2017 against the years either side
- 2016 cars: 44% fewer MOT fails than the average car its age (the 2017 car does better)
- 2018 cars: 39% fewer MOT fails than the average car its age (the 2017 car does better)
- Strong point: lights and electrics, 64% 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 SL
Fail rate by area
- Tyres4.2%
- Lights and electrics1.2%
- Suspension0.8%
- Exhaust, emissions and leaks0.7%
- Windscreen, wipers and mirrors0.4%
- Brakes0.4%
- Wheels0.1%
Average for cars of the same age and mileage
Top failures
Tyre cut reaching ply or cords 0.98%
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 0.98%
A bulge means the tyre's structure has failed and it could burst suddenly, so it must be replaced at once.
Tyre ply or cords exposed 0.88%
Exposed ply or cords can let the tyre fail suddenly, so the tyre must be replaced before the car is driven.
Headlamp aim set too low 0.39%
Headlamps aimed too low light the road poorly and reduce the driver's view ahead, especially at night.
Suspension ball joint excessively worn 0.39%
A worn ball joint can fail and cause loss of steering control, so it must be replaced promptly.
Engine warning light inoperative or lit 0.32%
An engine warning light that is lit or not working can hide faults, so diagnosis is needed before buying.
Common advisories
Tyre worn close to legal limit (6.38%) · Tyre slightly damaged or cracking (4.28%) · Tyre has a shallow cut (1.65%) · Brake pads wearing thin (1.4%) · Nail in tyre, monitor (1.37%) · Suspension ball joint slight play (1.33%)
Other years
Every Mercedes-Benz SL year
The full picture: Mercedes-Benz SL reliability. Before you pay for any Mercedes-Benz SL, 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 SL reliable?
2017 Mercedes-Benz SLs fail 7.1% of first MOT tests, 50% fewer MOT fails than the average car its age and mileage, ranking 11 of 23 SL years (2,852 DVSA tests, 2022 to 2024).
What fails on a 2017 Mercedes-Benz SL MOT?
Most often tyre cut reaching ply or cords (0.98% of tests), tyre bulge from structural failure (0.98% of tests), tyre ply or cords exposed (0.88% of tests).
How many miles should a 2017 Mercedes-Benz SL have done?
At its MOT aged about 6, a typical 2017 Mercedes-Benz SL shows 25,344 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).
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