Hyundai i30: lighting & signalling MOT failures
Of the 659,745 Hyundai i30 MOT tests in this dataset, 11.5% recorded at least one lighting & signalling failure. It shows up most on 2010 and 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 |
|---|---|---|
| 2007 | 6,324 | 17.8% |
| 2008 | 18,468 | 17.4% |
| 2009 | 60,919 | 17.6% |
| 2010 | 71,463 | 18.1% |
| 2011 | 60,841 | 19.3% |
| 2012 | 59,776 | 12.4% |
| 2013 | 69,795 | 10.8% |
| 2014 | 63,292 | 8.7% |
| 2015 | 82,980 | 9.3% |
| 2016 | 57,131 | 8.2% |
| 2017 | 38,517 | 3.7% |
| 2018 | 41,113 | 2.4% |
| 2019 | 18,249 | 1.7% |
| 2020 | 5,214 | 1.5% |
| 2021 | 3,988 | 1.5% |
| 2022 | 1,571 | 1.4% |
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.