Seat Leon: lighting & signalling MOT failures
Lighting & signalling was a recorded failure area in 5.7% of Seat Leon MOT tests in this dataset. It is most prominent on 2003, 2004 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 |
|---|---|---|
| 2001 | 2,259 | 15.1% |
| 2002 | 4,583 | 15.6% |
| 2003 | 8,878 | 16.6% |
| 2004 | 11,279 | 15.7% |
| 2005 | 13,718 | 15.1% |
| 2006 | 23,713 | 14.1% |
| 2007 | 33,733 | 13.5% |
| 2008 | 34,151 | 12.7% |
| 2009 | 34,495 | 11.3% |
| 2010 | 39,520 | 9.5% |
| 2011 | 43,321 | 9.0% |
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.