2015 MG 3 · 8,072 MOT tests
2015 MG 3 reliability
2015 MG 3s fail 28.5% of first MOT tests, 37% more MOT fails than the average car its age and mileage, ranking 2 of 7 3 years (8,072 DVSA tests, 2022 to 2024).
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- first-time fail rate (all MG 3s: 23.4%)
- 28.5%
- first-time fail rate (all MG 3s: 23.4%)
- fails than cars of the same age and mileage
- 37% more
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 8
- 44,878
- typical miles at its MOT, aged about 8
- MOT tests, 2022 to 2024
- 8,072
- MOT tests, 2022 to 2024
Year on year
2015 against the years either side
- 2014 cars: 27% more MOT fails than the average car its age (the 2015 car does worse)
- 2016 cars: 43% more MOT fails than the average car its age (the 2015 car does better)
- Weak spot: seat belts and airbags, 6.2% of tests fail here (1443% above cars of the same age and mileage).
- Plates: a 2015 car carries a 64 plate (January–February 2015), or a 15 plate (March–August 2015), or a 65 plate (September–December 2015).
Common problems
What fails on a 2015 MG 3
Fail rate by area
- Lights and electrics7.7%
- Suspension6.8%
- Tyres6.8%
- Seat belts and airbags6.2%
- Windscreen, wipers and mirrors6.2%
- Brakes6%
- Steering2%
Average for cars of the same age and mileage
Top failures
Airbag warning lamp shows fault 5.28%
A lit airbag warning means the airbag system may not deploy in a crash, so it needs diagnosing and repairing.
Wiper blade not clearing windscreen 2.92%
Wipers that do not clear the windscreen reduce visibility in rain, which is a safety risk, so replace them.
Suspension arm pin/bush excessively worn 2.81%
Worn suspension arm bushes allow the wheel to move unpredictably, affecting steering, handling and tyre wear.
Dipped beam headlamp not working 2.38%
A failed dipped beam makes it hard to see and be seen at night, so the lamp needs fixing before driving.
Tyre pressure monitoring system faulty 1.67%
A faulty tyre pressure monitor cannot warn about low tyre pressure, so check tyres manually and have the fault diagnosed.
Brake pads worn below 1.5mm 1.66%
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 (14.59%) · Suspension arm pin/bush showing wear (13.76%) · Tyre slightly damaged or cracking (9.11%) · Brake disc pitted or scored (8.03%) · Brake pads wearing thin (6.95%) · Brake pipes corroded and greasy (6.53%)
Is a 2015 MG 3 reliable?
2015 MG 3s fail 28.5% of first MOT tests, 37% more MOT fails than the average car its age and mileage, ranking 2 of 7 3 years (8,072 DVSA tests, 2022 to 2024).
What fails on a 2015 MG 3 MOT?
Most often airbag warning lamp shows fault (5.28% of tests), wiper blade not clearing windscreen (2.92% of tests), suspension arm pin/bush excessively worn (2.81% of tests).
How many miles should a 2015 MG 3 have done?
At its MOT aged about 8, a typical 2015 MG 3 shows 44,878 miles. Much higher or lower is worth asking about.
What plate is a 2015 car?
A car first registered in 2015 carries a 64 plate (January–February 2015), or a 15 plate (March–August 2015), or a 65 plate (September–December 2015).
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