MOT failure · RFR #30479
Brakes imbalance across an axle such that the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle.
Total
65
Models
17
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 MG B 0.95%
- 02 Vauxhall Corsa Sri Nav S/s 0.30%
- 03 Vauxhall Corsa Sri VX Line Nav Black 0.30%
- 04 Hyundai Ioniq First Edition Hev S A 0.27%
- 05 Ford Transit Custom 290 Sport Eblue 0.27%
- 06 Peugeot 208 Allure EV 0.23%
- 07 Renault Clio S Edition Tce 0.21%
- 08 Volkswagen Id3 Business 0.21%
- 09 Tesla Model X Perform Ludicrous Awd 0.19%
- 10 Volkswagen T Roc Sel Tsi Evo S A 0.19%
- 11 Fiat 500x Sport 0.19%
- 12 Volvo Xc60 R Design B4 Awd Auto 0.19%
- 13 Rolls Royce Wraith 0.18%
- 14 Mazda 2 GT Sport Nav Mhev 0.17%
- 15 Volvo Xc60 Edition T4 Auto 0.13%
- 16 Ford Fiesta Trend Turbo Mhev 0.13%
- 17 Renault Captur S Edition Tce 0.12%
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 brakes imbalance across an axle such… fail an MOT?
- Brakes imbalance across an axle such that the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle. Most commonly flagged on the MG B. 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 brakes imbalance across an axle such…?
- 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.