Suzuki Alto: lighting & signalling MOT failures
Lighting & signalling was recorded as a failure area in 12.8% of Suzuki Alto MOT tests — 38,907 tests out of 303,725. It shows up most on 2004 and 2010 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 | 254 | 15.0% |
| 2003 | 3,628 | 13.8% |
| 2004 | 7,982 | 15.1% |
| 2005 | 9,254 | 14.6% |
| 2006 | 5,614 | 14.6% |
| 2009 | 34,001 | 14.6% |
| 2010 | 28,248 | 15.2% |
| 2011 | 28,197 | 12.3% |
| 2012 | 28,551 | 11.9% |
| 2013 | 70,838 | 11.9% |
| 2014 | 75,661 | 12.1% |
| 2015 | 10,714 | 10.6% |
Methodology & source. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-27. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.