Proton Gen/2: lighting & signalling MOT failures
Lighting & signalling was a recorded failure area in 18.4% of Proton Gen/2 MOT tests in this dataset. It is most prominent on 2010, 2011 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 |
|---|---|---|
| 2005 | 393 | 18.6% |
| 2006 | 576 | 16.8% |
| 2007 | 910 | 18.4% |
| 2008 | 817 | 18.2% |
| 2009 | 580 | 17.9% |
| 2010 | 664 | 19.1% |
| 2011 | 463 | 19.2% |
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.