MOT failure · RFR #30878
Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow
Total
965
Models
5
Models most at risk.
Ranked by rate, not raw volume. A Fiesta shows every failure a lot because there are a lot of Fiestas. Rate = share of that model's own MOTs.
Failure match · your reg
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Cost orientation
Hard to predict in isolation — depends what's actually worn.
This defect doesn't map to a clean retail-part swap; ranges vary too widely without seeing the car. Use the estimator to bracket the all-in cost across the items most likely to surface alongside it.
Frequently asked.
- Why does product on the lens or light… fail an MOT?
- Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow. Most commonly flagged on the Mitsubishi Grandis. UK MOT standards require this item to meet minimum safety thresholds — when it falls short, the tester logs it as a Major or Dangerous defect and the car fails outright.
- How much does it cost to fix product on the lens or light…?
- Costs vary depending on the vehicle, region, and severity. Use our MOT cost estimator for typical UK garage rates across the most common failure items.
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