MOT cost .

MOT failure · RFR #30016

Parking brake efficiency less than 50% of the required value

Total

24,042

Models

95

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.

  1. 01 Chrysler Jeep 300 5.56%
  2. 02 Dodge Nitro 5.43%
  3. 03 Nissan Cabstar 5.41%
  4. 04 Chrysler 300 C 5.41%
  5. 05 Iveco Daily 35s11 Mwb 5.20%
  6. 06 Chrysler 300 4.86%
  7. 07 Jeep Cherokee Crd Sport Auto 4.67%
  8. 08 Iveco Daily 35c12 Mwb 4.57%
  9. 09 Nissan Interstar 4.54%
  10. 10 London Taxis Int TX II 4.08%
  11. 11 Iveco Daily 35s12 Lwb 3.93%
  12. 12 Iveco Daily 35c15 Mwb 3.82%
  13. 13 Chrysler Jeep Grand Voyager 3.70%
  14. 14 Chrysler Grand Voyager 3.37%
  15. 15 Citroen Relay 3.28%
  16. 16 Mercedes Benz Sprinter 315 Progressive Cdi 3.03%
  17. 17 Chrysler Voyager 2.94%
  18. 18 Ssangyong Musso 2.87%
  19. 19 Volkswagen LT 2.80%
  20. 20 Nissan Primastar 2.71%
  21. 21 Bentley Brooklands 2.64%
  22. 22 Mercedes Benz Sprinter 2.61%
  23. 23 Iveco Daily 2.54%
  24. 24 Volkswagen Crafter 2.33%
  25. 25 Rolls Royce Silver Spirit 2.32%
  26. 26 Jeep Cherokee Limited Auto 2.31%
  27. 27 Bentley Turbo 2.28%
  28. 28 Renault Master 2.28%
  29. 29 Toyota Mr2 2.25%
  30. 30 Hyundai Iload 2.21%

Top 30 by rate. 65 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.

Open estimator

Frequently asked.

Why does parking brake efficiency less than 50%… fail an MOT?
Parking brake efficiency less than 50% of the required value. Most commonly flagged on the Chrysler Jeep 300. 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 parking brake efficiency less than 50%…?
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.