2017 Mercedes-Benz GLA · 46,870 MOT tests
2017 Mercedes-Benz GLA reliability
2017 Mercedes-Benz GLAs fail 14.1% of first MOT tests, 21% fewer MOT fails than the average car its age and mileage, ranking 6 of 8 GLA years (46,870 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Mercedes-Benz GLAs: 13.4%)
- 14.1%
- first-time fail rate (all Mercedes-Benz GLAs: 13.4%)
- fails than cars of the same age and mileage
- 21% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 6
- 46,007
- typical miles at its MOT, aged about 6
- MOT tests, 2022 to 2024
- 46,870
- MOT tests, 2022 to 2024
Year on year
2017 against the years either side
- 2016 cars: 23% fewer MOT fails than the average car its age (the 2017 car does worse)
- 2018 cars: 21% fewer MOT fails than the average car its age (the 2017 car does better)
- Weak spot: body, chassis and structure, 2.3% of tests fail here (156% above cars of the same age and mileage).
- Strong point: lights and electrics, 49% 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 GLA
Fail rate by area
- Tyres4.6%
- Windscreen, wipers and mirrors2.4%
- Lights and electrics2.4%
- Brakes2.3%
- Body, chassis and structure2.3%
- Suspension2.2%
- Exhaust, emissions and leaks1.1%
Average for cars of the same age and mileage
Top failures
CV joint boot split or insecure 1.7%
A split CV boot lets dirt in and grease out, so the joint wears and may need full replacement.
Tyre tread below 1.6mm 1.51%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Brake pads worn below 1.5mm 1.16%
Pads worn below 1.5mm lose stopping power and can damage discs, so replacement is needed before the car is driven.
Tyre cut reaching ply or cords 1.03%
A cut reaching the ply or cords weakens the tyre and can cause a burst, so it must be replaced.
Windscreen washer fluid insufficient 0.81%
Washers are not supplying enough liquid, so the windscreen cannot be cleared properly, which is a safety issue.
Wiper blade not clearing windscreen 0.71%
Wipers that do not clear the windscreen reduce visibility in rain, which is a safety risk, so replace them.
Common advisories
Tyre worn close to legal limit (12.57%) · Brake pads wearing thin (6.94%) · Tyre slightly damaged or cracking (6.58%) · Brake disc pitted or scored (4.64%) · Brake discs showing some wear (2.74%) · Child seat limits belt inspection (2.26%)
Other years
Every Mercedes-Benz GLA year
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Source: DVSA anonymised MOT results, 2022 to 2024, class 4 normal tests.
Is a 2017 Mercedes-Benz GLA reliable?
2017 Mercedes-Benz GLAs fail 14.1% of first MOT tests, 21% fewer MOT fails than the average car its age and mileage, ranking 6 of 8 GLA years (46,870 DVSA tests, 2022 to 2024).
What fails on a 2017 Mercedes-Benz GLA MOT?
Most often cv joint boot split or insecure (1.7% of tests), tyre tread below 1.6mm (1.51% of tests), brake pads worn below 1.5mm (1.16% of tests).
How many miles should a 2017 Mercedes-Benz GLA have done?
At its MOT aged about 6, a typical 2017 Mercedes-Benz GLA shows 46,007 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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