2017 SEAT Mii · 4,865 MOT tests
2017 SEAT Mii reliability
2017 SEAT Miis fail 17.2% of first MOT tests, 15% more MOT fails than the average car its age and mileage, ranking 6 of 8 Mii years (4,865 DVSA tests, 2022 to 2024).
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- first-time fail rate (all SEAT Miis: 21.4%)
- 17.2%
- first-time fail rate (all SEAT Miis: 21.4%)
- fails than cars of the same age and mileage
- 15% more
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 6
- 31,142
- typical miles at its MOT, aged about 6
- MOT tests, 2022 to 2024
- 4,865
- MOT tests, 2022 to 2024
Year on year
2017 against the years either side
- 2016 cars: 21% more MOT fails than the average car its age (the 2017 car does better)
- 2018 cars: 20% more MOT fails than the average car its age (the 2017 car does better)
- Weak spot: windscreen, wipers and mirrors, 5.1% of tests fail here (60% above cars of the same age and mileage).
- Strong point: suspension, 16% 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 SEAT Mii
Fail rate by area
- Lights and electrics5.2%
- Windscreen, wipers and mirrors5.1%
- Tyres3.9%
- Brakes3.4%
- Suspension2%
- Body, chassis and structure1%
- Exhaust, emissions and leaks0.7%
Average for cars of the same age and mileage
Top failures
Wiper blade not clearing windscreen 3.14%
Wipers that do not clear the windscreen reduce visibility in rain, which is a safety risk, so replace them.
Headlamp aim set too low 1.36%
Headlamps aimed too low light the road poorly and reduce the driver's view ahead, especially at night.
Tyre tread below 1.6mm 1.17%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Suspension arm pin/bush excessively worn 1.01%
Worn suspension arm bushes allow the wheel to move unpredictably, affecting steering, handling and tyre wear.
Windscreen washer fluid insufficient 0.82%
Washers are not supplying enough liquid, so the windscreen cannot be cleared properly, which is a safety issue.
Position lamp not working 0.8%
A failed position lamp makes the car harder to see in poor light and is illegal, so it must be repaired.
Common advisories
Tyre slightly damaged or cracking (15.03%) · Tyre worn close to legal limit (9.68%) · Brake disc pitted or scored (4.28%) · Suspension arm pin/bush showing wear (3.35%) · Brake pads wearing thin (3.12%) · Brake discs showing some wear (2.84%)
Is a 2017 SEAT Mii reliable?
2017 SEAT Miis fail 17.2% of first MOT tests, 15% more MOT fails than the average car its age and mileage, ranking 6 of 8 Mii years (4,865 DVSA tests, 2022 to 2024).
What fails on a 2017 SEAT Mii MOT?
Most often wiper blade not clearing windscreen (3.14% of tests), headlamp aim set too low (1.36% of tests), tyre tread below 1.6mm (1.17% of tests).
How many miles should a 2017 SEAT Mii have done?
At its MOT aged about 6, a typical 2017 SEAT Mii shows 31,142 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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