MOT failure · RFR #31885
Engine MIL illuminated indicating a malfunction
Total
76,096
Models
284
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 Daewoo Matiz 5.08%
- 02 Daewoo Kalos 4.82%
- 03 Vauxhall Ampera 4.38%
- 04 Dfsk Loadhopper 4.27%
- 05 Mitsubishi Grandis 3.98%
- 06 Fiat Sedici 3.79%
- 07 Chrysler Sebring 3.77%
- 08 Mercedes Benz Vaneo 3.62%
- 09 Mazda RX 8 3.60%
- 10 Suzuki Carry 3.54%
- 11 Lexus Rx350 3.09%
- 12 Chevrolet Tacuma 3.08%
- 13 Lexus Rx300 3.06%
- 14 Honda Stream 3.02%
- 15 Vauxhall Astra Business Edition Nav T 2.93%
- 16 Perodua Kelisa 2.86%
- 17 Lexus Ls430 2.80%
- 18 Suzuki Liana 2.78%
- 19 Volkswagen Beetle 2.75%
- 20 Saab 9 5 2.63%
- 21 Rover Streetwise 2.58%
- 22 Vauxhall Unclassified 2.51%
- 23 Volkswagen Lupo 2.50%
- 24 Alfa Romeo 156 2.49%
- 25 Hyundai Amica 2.47%
- 26 Vauxhall Zafira 2.44%
- 27 Lexus Gs300 2.44%
- 28 Audi A2 2.41%
- 29 Subaru Legacy 2.40%
- 30 Jeep Compass Limited Cvt 2.40%
Top 30 by rate. 254 more models also logged this defect.
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 engine mil illuminated indicating a malfunction fail an MOT?
- Engine MIL illuminated indicating a malfunction. Most commonly flagged on the Daewoo Matiz. 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 engine mil illuminated indicating a malfunction?
- 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.