mechanics.tradeRbt (sp): efficiency below requirements
This was recorded 405,626 times on cars and light vans in 2025, which makes it number 25 on the list of things that stop a car passing.
405,626recorded in 2025
25on the national list
2.0%of the top forty defects
What the tester is looking at
Parking brake efficiency below minimum requirement
How serious it counts as
The tester records this as a major defect. What the categories mean.
All forty defects, from 42,728,066 MOT tests in 2025.