SEAT Mii MOT reliability

SEAT Miis passed their MOT first time 76% of the time across 18,638 tests in 2025. 17,850 are still licensed in Great Britain.

First-time pass rate

76%

MOTs analysed

18,638

Still licensed (GB)

17,850

Body type

Hatchback

Pass rate by year of first registration

Older cars fail more often, so compare a car with others of the same age.

In detail:

First registered

2018 petrol

1,277 MOTs

Passed first time 83%. Typical mileage 35,275 (most between 24,015 and 48,903).

2019: 100% → 2020: 92% → 2021: 89% → 2022: 86% → 2023: 85% → 2024: 85% → 2025: 83%

Most common failures

Pins and bushes: pin or bush excessively worn (1.7%)
Position lamp: not working (1.6%)
Headlamp aim: too low (1.5%)
Wipers: does not clear the windscreen effectively (1.4%)
Brake pads: less than 1.5 mm thick (1.2%)

Where 2018 Miis fail

Lights & electrics

6.4%

Wheels & tyres

3.8%

Brakes

3.4%

Visibility & wipers

3.0%

Suspension & axles

2.9%

Exhaust, emissions & leaks

1.4%

Seat belts & other equipment

0.5%

Body, structure & corrosion

0.2%

Looking at a particular car?

See its own MOT history, mileage and red flags, compared with these figures. Free.

Based on 2025 initial MOT tests in DVSA's anonymised MOT dataset (cars and light vans). Contains public sector information licensed under the Open Government Licence v3.0. Model details: Vehicle data by VehiclesDB.