2017 MG 3 · 9,892 MOT tests
2017 MG 3 reliability
2017 MG 3s fail 24.9% of first MOT tests, 59% more MOT fails than the average car its age and mileage, ranking 7 of 7 3 years (9,892 DVSA tests, 2022 to 2024).
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- first-time fail rate (all MG 3s: 23.4%)
- 24.9%
- first-time fail rate (all MG 3s: 23.4%)
- fails than cars of the same age and mileage
- 59% more
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 6
- 34,683
- typical miles at its MOT, aged about 6
- MOT tests, 2022 to 2024
- 9,892
- MOT tests, 2022 to 2024
Year on year
2017 against the years either side
- 2016 cars: 43% more MOT fails than the average car its age (the 2017 car does worse)
- 2018 cars: 58% more MOT fails than the average car its age (the 2017 car does worse)
- Weak spot: seat belts and airbags, 1.8% of tests fail here (504% above cars of the same age and mileage).
- 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 MG 3
Fail rate by area
- Tyres8.1%
- Brakes7.7%
- Lights and electrics6%
- Windscreen, wipers and mirrors5.4%
- Suspension4.1%
- Seat belts and airbags1.8%
- Exhaust, emissions and leaks0.9%
Average for cars of the same age and mileage
Top failures
Wiper blade not clearing windscreen 2.61%
Wipers that do not clear the windscreen reduce visibility in rain, which is a safety risk, so replace them.
Tyre tread below 1.6mm 2.02%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Tyre ply or cords exposed 1.96%
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 1.86%
Headlamps aimed too low light the road poorly and reduce the driver's view ahead, especially at night.
Parking brake efficiency below minimum 1.85%
The parking brake holds the car less well than required, so it may roll on a slope and needs repair.
Windscreen washer fluid insufficient 1.78%
Washers are not supplying enough liquid, so the windscreen cannot be cleared properly, which is a safety issue.
Common advisories
Tyre worn close to legal limit (14.48%) · Tyre slightly damaged or cracking (9.34%) · Brake disc pitted or scored (9.16%) · Suspension arm pin/bush showing wear (7.18%) · Brake pads wearing thin (6.83%) · Brake pipes corroded and greasy (2.89%)
Is a 2017 MG 3 reliable?
2017 MG 3s fail 24.9% of first MOT tests, 59% more MOT fails than the average car its age and mileage, ranking 7 of 7 3 years (9,892 DVSA tests, 2022 to 2024).
What fails on a 2017 MG 3 MOT?
Most often wiper blade not clearing windscreen (2.61% of tests), tyre tread below 1.6mm (2.02% of tests), tyre ply or cords exposed (1.96% of tests).
How many miles should a 2017 MG 3 have done?
At its MOT aged about 6, a typical 2017 MG 3 shows 34,683 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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