MOT defects: Parking (secondary brake performance) (Plate brake tester)

Brakes

5 defects: 2 dangerous, 3 major. 2 can be given as an advisory instead.

Certificate wording	Severity	As an advisory	Inspection manual
Parking (secondary brake performance) on a single line braking system imbalanced across an axle more than 50%	dangerous	None	Brakes imbalance across an axle such that the braking effort from any wheel is less than 50% of the maximum effort recorded from the other wheel on a steered axle
Parking (secondary brake performance) on a single line braking system has no recorded effort at a wheel	dangerous	None	Braking effort not recording at any wheel
Parking (secondary brake performance) on a single line braking system imbalanced across an axle	major	(secondary) brake imbalance requirements only just met. It would appear that the braking system requires adjustment or repair.	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.
Parking (secondary brake performance) on a single line braking system has inadequate effort at a wheel	major	None	Braking effort inadequate at any wheel
Parking (secondary brake performance) on a single line braking system grabbing severely	major	(secondary) brake grabbing slightly	A brake on any wheel grabbing severely

Pre-2018 names for this part

Dabers ANPR shows the full MOT history, defects included, for the car in any photo. How it works

Contains public sector information from the DVSA licensed under the Open Government Licence v3.0.