Water Ingress (Rear)
ModerateBodywork & RustFailing seals around the rear light clusters or blocked drainage holes allow water into the boot or rear footwells.
Est. Repair Cost: £50–£150
Reliability GuideCommon Problems with the
Common Problems with the
2019 SEAT Mii
In a bold move, SEAT discontinued the petrol-powered Mii and relaunched it exclusively as the Mii Electric. It offered a highly affordable entry point into electric vehicle ownership with a practical real-world range.
What changed for 2019
- •Discontinuation of all petrol engines.
- •Relaunch as the fully electric 'Mii Electric' with a 36.8kWh battery.
Common MOT watch-outs
- !Minor software glitches relating to charging or range estimation.
- !Tyre wear, exacerbated by the instant torque of the electric motor.
5
Known Issues
0
Serious
4
Moderate
1
Minor
All Known Issues
Window Regulator Failure
ModerateElectrics & ElectronicsThe cable-type window regulators can snap, letting the glass drop inside the door. More common on the driver's side due to heavier use.
Est. Repair Cost: £80–£200
Clutch Cable Wear
ModerateGearbox & TransmissionThe mechanical clutch cable can stretch or snap on manual models, leaving the clutch pedal disconnected. A known issue on VW Up! platform cars.
Est. Repair Cost: £100–£250
Starter Motor Failure
ModerateEngineThe starter motor can fail intermittently or completely, often preceded by slow cranking or clicking noises. More common on higher-mileage cars.
Est. Repair Cost: £150–£350
Front Suspension Creaking
MinorSuspension & ChassisAnti-roll bar bushes or top mounts wear prematurely, causing noise over speed bumps.
Est. Repair Cost: £80–£200
Buying Tips for 2019 SEAT Mii
- ✓The Mii Electric is a superb used EV; check the charging port for damage and ensure both Type 2 and CCS rapid charging function correctly.
- ✓Verify the 'State of Health' of the battery if possible, though degradation on these models is generally low.