Land Rover Discovery: lighting & signalling MOT failures
Of the 925,322 Land Rover Discovery MOT tests in this dataset, 8.8% recorded at least one lighting & signalling failure. It shows up most on 1998 and 2001 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 |
|---|---|---|
| 1990 | 551 | 13.8% |
| 1991 | 689 | 16.0% |
| 1992 | 981 | 13.8% |
| 1993 | 2,245 | 16.4% |
| 1994 | 4,241 | 14.9% |
| 1995 | 5,470 | 16.6% |
| 1996 | 6,295 | 15.3% |
| 1997 | 7,390 | 15.9% |
| 1998 | 8,210 | 16.6% |
| 1999 | 14,647 | 16.4% |
| 2000 | 16,530 | 15.8% |
| 2001 | 25,431 | 16.6% |
| 2002 | 31,388 | 16.1% |
| 2003 | 38,453 | 15.1% |
| 2004 | 43,201 | 14.5% |
| 2005 | 52,604 | 13.3% |
| 2006 | 52,735 | 14.8% |
| 2007 | 45,530 | 13.5% |
| 2008 | 32,966 | 11.6% |
| 2009 | 33,431 | 9.7% |
| 2010 | 40,532 | 6.9% |
| 2011 | 37,440 | 6.8% |
| 2012 | 41,748 | 6.7% |
| 2013 | 38,517 | 6.7% |
| 2014 | 44,301 | 5.0% |
| 2015 | 54,096 | 4.3% |
| 2016 | 56,592 | 5.3% |
| 2017 | 56,268 | 1.6% |
| 2018 | 47,470 | 1.5% |
| 2019 | 35,363 | 1.7% |
| 2020 | 20,728 | 1.6% |
| 2021 | 21,495 | 1.9% |
| 2022 | 7,395 | 2.6% |
| 2023 | 278 | 1.8% |
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.