MOT failure · RFR #31934
Smoke opacity levels exceed default limit
Total
83
Models
7
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.
- 01 Peugeot E7 1.73%
- 02 Land Rover Discovery Sport S D 4x2 1.08%
- 03 Land Rover Range Rover Evoque R Dyn D 4x2 0.94%
- 04 Land Rover Range Rover Evoque D 4x2 0.78%
- 05 Land Rover R Rover Evoque R Dyn S D 4x2 0.63%
- 06 Land Rover Range Rover Evoque S D 4x2 0.60%
- 07 Land Rover Range Rover Evoque Hse D Auto 0.29%
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.
Open estimator
Frequently asked.
- Why does smoke opacity levels exceed default limit fail an MOT?
- Smoke opacity levels exceed default limit. Most commonly flagged on the Peugeot E7. The DVSA's 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 smoke opacity levels exceed default limit?
- 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.