MOT failure · RFR #31938
Engine MIL illuminated indicating a malfunction
Total
50,524
Models
291
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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- 01 Isuzu Trucks Grafter N35.120 4.41%
- 02 Isuzu Trucks Grafter N35.150 3.07%
- 03 Mercedes Benz Vito 110 Pure Cdi 2.92%
- 04 Volkswagen Crafter Cr35 Startline Tdi 2.71%
- 05 Mercedes Benz Vito 110 Progressive Cdi 2.60%
- 06 Mitsubishi Fuso Canter 2.31%
- 07 Volkswagen Crafter 2.31%
- 08 Maxus Deliver 9 2.29%
- 09 Man Tge 3.140 2.28%
- 10 Ldv V80 2.16%
- 11 Land Rover Discovery Sport S D 4x2 2.12%
- 12 Renault Master Ll35 Business Dci 2.09%
- 13 Nissan Nv400 Acenta Dci 2.04%
- 14 Fiat Talento 2.01%
- 15 Land Rover Range Rover Evoque D 4x2 2.00%
- 16 Fiat Ducato 35 Maxi Multijet II 1.94%
- 17 Mercedes Benz Vito 114 Progressive Cdi 1.93%
- 18 Nissan Nv400 1.91%
- 19 Land Rover Range Rover Evoque R Dyn D 4x2 1.84%
- 20 Volkswagen Crafter Cr35 Trendline Tdi 1.77%
- 21 SEAT Exeo 1.69%
- 22 Renault Master Lm35 Business Dci 1.65%
- 23 Citroen Relay 35 L3h2 Eprise Bhdi S/s 1.63%
- 24 Nissan Nv400 Tekna Dci 1.61%
- 25 Mercedes Benz Sprinter 1.60%
- 26 Nissan Nv300 1.60%
- 27 Mercedes Benz Citan 109 Pure Cdi 1.56%
- 28 Great Wall Steed 1.55%
- 29 Ford Transit 350 Trend Ecoblue 1.55%
- 30 Vauxhall Movano 1.50%
Top 30 by rate. 261 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.
Frequently asked.
- Why does engine mil illuminated indicating a malfunction fail an MOT?
- Engine MIL illuminated indicating a malfunction. Most commonly flagged on the Isuzu Trucks Grafter N35.120. 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 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.
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