2021 MG ZS · 5,922 MOT tests
2021 MG ZS reliability
2021 MG ZSs fail 11.8% of first MOT tests, 3% more MOT fails than the average car its age and mileage, ranking 3 of 7 ZS years (5,922 DVSA tests, 2022 to 2024).
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- first-time fail rate (all MG ZSs: 18.3%)
- 11.8%
- first-time fail rate (all MG ZSs: 18.3%)
- fails than cars of the same age and mileage
- 3% more
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 3
- 24,469
- typical miles at its MOT, aged about 3
- MOT tests, 2022 to 2024
- 5,922
- MOT tests, 2022 to 2024
Year on year
2021 against the years either side
- 2020 cars: 17% more MOT fails than the average car its age (the 2021 car does better)
- Weak spot: brakes, 2.9% of tests fail here (67% above cars of the same age and mileage).
- Strong point: windscreen, wipers and mirrors, 49% fewer fails than comparable cars.
- Plates: a 2021 car carries a 70 plate (January–February 2021), or a 21 plate (March–August 2021), or a 71 plate (September–December 2021).
Common problems
What fails on a 2021 MG ZS
Fail rate by area
- Tyres3.9%
- Lights and electrics3.1%
- Brakes2.9%
- Windscreen, wipers and mirrors1.6%
- Suspension1%
- Seat belts and airbags0.4%
- Exhaust, emissions and leaks0.4%
Average for cars of the same age and mileage
Top failures
Tyre tread below 1.6mm 1.25%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Tyre cut reaching ply or cords 1.03%
A cut reaching the ply or cords weakens the tyre and can cause a burst, so it must be replaced.
Brake pads worn below 1.5mm 0.89%
Pads worn below 1.5mm lose stopping power and can damage discs, so replacement is needed before the car is driven.
Dipped beam headlamp not working 0.73%
A failed dipped beam makes it hard to see and be seen at night, so the lamp needs fixing before driving.
Wiper blade not clearing windscreen 0.59%
Wipers that do not clear the windscreen reduce visibility in rain, which is a safety risk, so replace them.
Headlamp aim set too high 0.44%
Headlamps aimed too high can dazzle other drivers, and adjusting them is usually a quick job.
Common advisories
Brake disc pitted or scored (6.91%) · Tyre worn close to legal limit (6.59%) · Brake pads wearing thin (3.77%) · Tyre slightly damaged or cracking (2.31%) · Child seat limits belt inspection (1.91%) · Nail in tyre, monitor (1.76%)
Is a 2021 MG ZS reliable?
2021 MG ZSs fail 11.8% of first MOT tests, 3% more MOT fails than the average car its age and mileage, ranking 3 of 7 ZS years (5,922 DVSA tests, 2022 to 2024).
What fails on a 2021 MG ZS MOT?
Most often tyre tread below 1.6mm (1.25% of tests), tyre cut reaching ply or cords (1.03% of tests), brake pads worn below 1.5mm (0.89% of tests).
How many miles should a 2021 MG ZS have done?
At its MOT aged about 3, a typical 2021 MG ZS shows 24,469 miles. Much higher or lower is worth asking about.
What plate is a 2021 car?
A car first registered in 2021 carries a 70 plate (January–February 2021), or a 21 plate (March–August 2021), or a 71 plate (September–December 2021).
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