MOT failure · RFR #31877
Emissions levels exceed default limits
Total
908
Models
25
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 1.61%
- 02 Audi Cabriolet 1.40%
- 03 Tvr Cerbera 1.10%
- 04 Caterham Unclassified 0.98%
- 05 Lotus Elise 0.82%
- 06 Subaru Impreza 0.78%
- 07 Mazda RX 7 0.74%
- 08 Ferrari F355 0.67%
- 09 Tvr Chimaera 0.66%
- 10 Tvr Griffith 500 0.61%
- 11 Toyota Supra 0.58%
- 12 Lotus Esprit 0.58%
- 13 Subaru Wrx 0.54%
- 14 BMW 135 0.47%
- 15 Nissan 370 Z 0.47%
- 16 Abarth 124 Spider Multiair Auto 0.39%
- 17 BMW M5 0.32%
- 18 Ford Fiesta ST Performance ED Turbo 0.32%
- 19 Lotus Exige 0.30%
- 20 Tvr Tuscan 0.27%
- 21 Nissan GT R 0.26%
- 22 Ferrari 488 Pista S A 0.20%
- 23 BMW 340i 0.16%
- 24 Ford Puma ST Line 0.14%
- 25 Toyota Supra Pro Auto 0.11%
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 default limits fail an MOT?
- Emissions levels exceed default 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 default limits?
- 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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