Mg Zs Exclusive Ev: lighting & signalling MOT failures
Lighting & signalling was a recorded failure area in 4.3% of Mg Zs Exclusive Ev MOT tests in this dataset. It is most prominent on 2019, 2020 cars.
Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair cost: £10–£150 (rough UK ballpark, not a quote).
Lighting & signalling failures by year
| Model year | Tests | Fail rate |
|---|---|---|
| 2019 | 2,175 | 7.1% |
| 2020 | 16,265 | 4.2% |
| 2021 | 9,369 | 4.0% |
Methodology & source. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.