2017 Mercedes-Benz GLC · 49,714 MOT tests
2017 Mercedes-Benz GLC reliability
2017 Mercedes-Benz GLCs fail 12.7% of first MOT tests, 33% fewer MOT fails than the average car its age and mileage, ranking 5 of 7 GLC years (49,714 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Mercedes-Benz GLCs: 11.3%)
- 12.7%
- first-time fail rate (all Mercedes-Benz GLCs: 11.3%)
- fails than cars of the same age and mileage
- 33% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 6
- 52,183
- typical miles at its MOT, aged about 6
- MOT tests, 2022 to 2024
- 49,714
- MOT tests, 2022 to 2024
Year on year
2017 against the years either side
- 2016 cars: 36% fewer MOT fails than the average car its age (the 2017 car does worse)
- 2018 cars: 28% fewer MOT fails than the average car its age (the 2017 car does better)
- Weak spot: suspension, 4% of tests fail here (16% above cars of the same age and mileage).
- Strong point: lights and electrics, 77% 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 GLC
Fail rate by area
- Tyres4.4%
- Suspension4%
- Brakes1.6%
- Exhaust, emissions and leaks1.4%
- Windscreen, wipers and mirrors1.3%
- Lights and electrics1.2%
- Number plates and VIN0.5%
Average for cars of the same age and mileage
Top failures
Suspension ball joint excessively worn 2.78%
A worn ball joint can fail and cause loss of steering control, so it must be replaced promptly.
Tyre tread below 1.6mm 1.35%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Tyre cut reaching ply or cords 1.07%
A cut reaching the ply or cords weakens the tyre and can cause a burst, so it must be replaced.
Diesel engine warning light faulty 0.85%
A lit or non-working engine warning light can hide faults, so diagnosis is needed before buying.
Tyre ply or cords exposed 0.8%
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 0.72%
Pads worn below 1.5mm lose stopping power and can damage discs, so replacement is needed before the car is driven.
Common advisories
Tyre worn close to legal limit (11.94%) · Brake pads wearing thin (6.07%) · Suspension ball joint slight play (5.26%) · Brake disc pitted or scored (3.23%) · Tyre slightly damaged or cracking (3.01%) · Brake discs showing some wear (2.3%)
Other years
Every Mercedes-Benz GLC year
The full picture: Mercedes-Benz GLC reliability. Before you pay for any Mercedes-Benz GLC, 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 GLC reliable?
2017 Mercedes-Benz GLCs fail 12.7% of first MOT tests, 33% fewer MOT fails than the average car its age and mileage, ranking 5 of 7 GLC years (49,714 DVSA tests, 2022 to 2024).
What fails on a 2017 Mercedes-Benz GLC MOT?
Most often suspension ball joint excessively worn (2.78% of tests), tyre tread below 1.6mm (1.35% of tests), tyre cut reaching ply or cords (1.07% of tests).
How many miles should a 2017 Mercedes-Benz GLC have done?
At its MOT aged about 6, a typical 2017 Mercedes-Benz GLC shows 52,183 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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