MOT failure · RFR #30494
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
5
Models
3
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
Does this failure affect your car?
Enter your reg and we'll check whether your model appears on the affected list — and where it ranks.
Want full MOT history, pass rate, and advisories? Use the reg checker →
Reg saved only in this browser; we never log it server-side. The lookup runs once against the official records each time you submit.
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 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 Citroen C3 Aircross Shine + P Tech S/s. 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 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.
Real examples from owners.
Owner reports sourced from honestjohn.co.uk that mention keywords from this failure. Matched, not summarised.
Click Mechanic · affiliate
Book a mobile mechanic
Affiliate links — small commission, no extra cost to you.
Mobile mechanic · UK-wide
Book a mechanic at your door.
Fixed-price quotes upfront. No garage needed. Click Mechanic sends a vetted local mechanic to you — home, work, or roadside.