Lighting defects contribute to 19 million MOT failures
Lighting defects have contributed to more than 19 million MOT failures since 2020, according to new research.
According to a Freedom of Information (FOI) request submitted to the Driver and Vehicle Standards Agency (DVSA) by online used car retailer cinch, more than 3.4 million lighting-related faults are recorded every year.
The data showed by 2021 was the worst year with more than 3.5 million lighting defects contributing to MOT failures, with more than 3.4 million identified in both 2023 and 2024.
Meanwhile, 1,964,738 defects were recorded from January to August this year.
Lights not working was the most common fault between 2020 and 2025, with 7.2 million recorded instances, followed by incorrect projected beam (1,877,732), faulty dipped beam (1,781,560), and inoperative single or multiple lamps (1,500,636).
MOT failures
Ben Welham, motoring expert at cinch, said: “Our research shows that minor lighting faults contribute to millions of MOT failures each year. The good news is that these are usually easy to spot and fix before your MOT, such as replacing a bulb or checking headlight alignment, helping drivers avoid extra costs and stay safe on the road.”
He added:
“MOT tests are rigorous with lighting checks because they’re so important for safety. So, it’s worth giving your lights a check or taking your car into a garage if you’re worried that your lights aren’t up to scratch, whether your MOT is due soon or not.”
