MOT failure · RFR #31873
Emissions levels exceed the manufacturer's specified limits
Total
11,789
Models
56
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 MG Mgf 3.24%
- 02 Rover 214 3.05%
- 03 Rover 216 2.83%
- 04 Peugeot 106 2.79%
- 05 Mazda RX 8 2.41%
- 06 Audi Cabriolet 2.34%
- 07 Toyota Carina 2.32%
- 08 Citroen Saxo 2.14%
- 09 Alfa Romeo Gtv 2.04%
- 10 Honda Prelude 2.01%
- 11 Skoda Felicia 1.99%
- 12 Toyota Mr2 1.88%
- 13 Mazda Eunos 1.88%
- 14 Audi Coupe 1.69%
- 15 Toyota Celica 1.68%
- 16 Vauxhall Calibra 1.65%
- 17 Vauxhall Cavalier 1.62%
- 18 Fiat Coupe 1.56%
- 19 Nissan 350 Z 1.51%
- 20 BMW Z3 1.42%
- 21 Subaru Impreza 1.39%
- 22 Rover Mini 1.32%
- 23 Mini Mini 1.30%
- 24 Lotus Elise 1.12%
- 25 Caterham Unclassified 1.10%
- 26 MG TF 1.06%
- 27 Tvr Cerbera 1.02%
- 28 Porsche 968 0.99%
- 29 Nissan 370 Z 0.98%
- 30 Volkswagen Corrado 0.96%
Top 30 by rate. 26 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 emissions levels exceed the manufacturer's specified… fail an MOT?
- Emissions levels exceed the manufacturer's specified limits. Most commonly flagged on the MG Mgf. 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 emissions levels exceed the manufacturer's specified…?
- 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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