2021 SEAT Mii Ev MOT Pass Rate
Pass rate for Mii Ev models manufactured in 2021, based on 1,544 real MOT test results.
Data from official DVSA MOT testing records
This page shows all Mii Ev cars tested in 2021. Want to see how cars built in 2021 hold up over time?
View 2021 SEAT Mii Ev vintage page → (87.5% current pass rate)2021 SEAT Mii Ev MOT Analysis
The 2021 SEAT Mii Ev has an MOT pass rate of 87.5% based on 1,544 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 18,933 miles on the odometer. With a 12.5% failure rate, the 2021 Mii Ev is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 2021 SEAT Mii Ev is Tyres, responsible for 11.2% of failures. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs range from £50–200 per tyre. Suspension is the second most common issue at 4.3%. Visibility follows at 2.7%.
Top failures specific to 2021 models only. The overall Mii Ev page may show different rankings.
What Fails Most
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Tyres | 11.2% | 173 |
| 2 | Suspension | 4.3% | 67 |
| 3 | Visibility | 2.7% | 41 |
| 4 | Lamps, Reflectors And Electrical Equipment | 2.6% | 40 |
| 5 | Brakes | 1.7% | 26 |
| 6 | Non-component Advisories | 0.9% | 14 |
| 7 | Identification Of The Vehicle | 0.3% | 5 |
| 8 | Seat Belts And Supplementary Restraint Systems | 0.2% | 3 |
| 9 | Road Wheels | 0.1% | 1 |
| 10 | Steering | 0.1% | 1 |
Failures per 10,000 Miles
avg. 18,933 miFor every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.
View as table
| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Tyres | 5.92 | 11.2% | 173 |
| Suspension | 2.29 | 4.3% | 67 |
| Visibility | 1.40 | 2.7% | 41 |
| Lamps & Electrical | 1.37 | 2.6% | 40 |
| Brakes | 0.89 | 1.7% | 26 |
| Non-component advisories | 0.48 | 0.9% | 14 |
| Identification of the vehicle | 0.17 | 0.3% | 5 |
| Seat Belts | 0.10 | 0.2% | 3 |
| Wheels | 0.03 | 0.1% | 1 |
| Steering | 0.03 | 0.1% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 2021 SEAT Mii Ev has an MOT pass rate of 87.5% based on 1,544 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 18,933 miles on the odometer. With a 12.5% failure rate, the 2021 Mii Ev is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 2021 SEAT Mii Ev, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to tyres: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating. With relatively low average mileage of 18,933 miles, many of these vehicles are still in good mechanical condition.
Tyres — 11.2% of failures
Tyres issues account for 11.2% of MOT failures on 2021 SEAT Mii Ev models. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs: £50–200 per tyre. Pre-MOT check: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating.
Suspension — 4.3% of failures
Suspension issues account for 4.3% of MOT failures on 2021 SEAT Mii Ev models. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. Typical repair costs: £200–500. Pre-MOT check: Look for uneven tyre wear, listen for clunking over bumps, and check if the car pulls to one side. A bouncy ride suggests worn shock absorbers. Visually inspect coil springs for cracks.
Visibility — 2.7% of failures
Visibility issues account for 2.7% of MOT failures on 2021 SEAT Mii Ev models. Visibility failures relate to the windscreen, wipers, washers, mirrors, and view-obstructing damage. Cracks in the windscreen swept area, ineffective wipers, or empty washer bottles are common causes. Typical repair costs: £10–300. Pre-MOT check: Check the windscreen for chips and cracks — damage larger than 10mm in the driver's swept area or 40mm elsewhere will fail. Test washers and wipers. Ensure both door mirrors are intact and adjustable.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.