Fiat Doblo: lighting & signalling MOT failures
Of the 306,060 Fiat Doblo MOT tests in this dataset, 11.7% recorded at least one lighting & signalling failure. It shows up most on 2002 and 2005 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 | 437 | 16.9% |
| 2002 | 1,924 | 20.8% |
| 2003 | 4,159 | 20.8% |
| 2004 | 6,972 | 20.2% |
| 2005 | 8,887 | 20.8% |
| 2006 | 12,906 | 16.5% |
| 2007 | 17,523 | 15.8% |
| 2008 | 15,311 | 14.2% |
| 2009 | 11,158 | 12.1% |
| 2010 | 13,707 | 13.9% |
| 2011 | 14,736 | 14.7% |
| 2012 | 15,430 | 14.0% |
| 2013 | 43,734 | 9.1% |
| 2014 | 39,279 | 12.5% |
| 2015 | 31,436 | 9.6% |
| 2016 | 22,009 | 8.1% |
| 2017 | 15,856 | 6.5% |
| 2018 | 12,196 | 5.6% |
| 2019 | 8,433 | 6.7% |
| 2020 | 4,352 | 6.0% |
| 2021 | 4,711 | 7.5% |
| 2022 | 843 | 4.2% |
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.