2021 Ford Mustang · 1,235 MOT tests
2021 Ford Mustang reliability
2021 Ford Mustangs fail 9.7% of first MOT tests, 18% fewer MOT fails than the average car its age and mileage, ranking 5 of 10 Mustang years (1,235 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Ford Mustangs: 14.7%)
- 9.7%
- first-time fail rate (all Ford Mustangs: 14.7%)
- fails than cars of the same age and mileage
- 18% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 3
- 26,462
- typical miles at its MOT, aged about 3
- MOT tests, 2022 to 2024
- 1,235
- MOT tests, 2022 to 2024
Year on year
2021 against the years either side
- 2020 cars: 10% more MOT fails than the average car its age (the 2021 car does better)
- Weak spot: number plates and vin, 1% of tests fail here (368% above cars of the same age and mileage).
- Strong point: windscreen, wipers and mirrors, 44% 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 Ford Mustang
Fail rate by area
- Tyres4.9%
- Lights and electrics2.3%
- Windscreen, wipers and mirrors1.8%
- Brakes1.1%
- Number plates and VIN1%
- Exhaust, emissions and leaks0.4%
- Suspension0.3%
Average for cars of the same age and mileage
Top failures
Tyre tread below 1.6mm 1.46%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Tyre ply or cords exposed 1.21%
Exposed ply or cords can let the tyre fail suddenly, so the tyre must be replaced before the car is driven.
Tyre cut reaching ply or cords 0.65%
A cut reaching the ply or cords weakens the tyre and can cause a burst, so it must be replaced.
Headlamp aim set too high 0.57%
Headlamps aimed too high can dazzle other drivers, and adjusting them is usually a quick job.
Wiper blade not clearing windscreen 0.57%
Wipers that do not clear the windscreen reduce visibility in rain, which is a safety risk, so replace them.
Headlamp aim set too low 0.32%
Headlamps aimed too low light the road poorly and reduce the driver's view ahead, especially at night.
Common advisories
Tyre worn close to legal limit (8.1%) · Brake disc pitted or scored (0.81%) · Tyre has a shallow cut (0.81%) · Tyre worn close to legal limit (0.81%) · Nail in tyre, monitor (0.57%) · Shock absorber light oil misting (0.49%)
Other years
Every Ford Mustang year
The full picture: Ford Mustang reliability. Before you pay for any Ford Mustang, 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 2021 Ford Mustang reliable?
2021 Ford Mustangs fail 9.7% of first MOT tests, 18% fewer MOT fails than the average car its age and mileage, ranking 5 of 10 Mustang years (1,235 DVSA tests, 2022 to 2024).
What fails on a 2021 Ford Mustang MOT?
Most often tyre tread below 1.6mm (1.46% of tests), tyre ply or cords exposed (1.21% of tests), tyre cut reaching ply or cords (0.65% of tests).
How many miles should a 2021 Ford Mustang have done?
At its MOT aged about 3, a typical 2021 Ford Mustang shows 26,462 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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