Audi A6: lighting & signalling MOT failures
Lighting & signalling was a recorded failure area in 5.8% of Audi A6 MOT tests in this dataset. It is most prominent on 2002, 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 | 1,911 | 15.4% |
| 2002 | 3,860 | 18.0% |
| 2003 | 6,089 | 15.9% |
| 2004 | 8,979 | 16.3% |
| 2005 | 15,073 | 15.9% |
| 2012 | 48,534 | 5.2% |
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.