MOT defects: Service brake efficiency (Plate brake tester)

Brakes

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

Certificate wording	Severity	As an advisory	Inspection manual
Service brake efficiency (Trikes, quads and pre-68 vehicles) imbalanced more than 50% across an axle	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
Service brake efficiency (Trikes, quads and pre-68 vehicles) efficiency less than 50% of the required value	dangerous	None	Service brake efficiency less than 50% of the required value
Service brake efficiency (Trikes, quads and pre-68 vehicles) imbalanced across an axle	major	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.
Service brake efficiency (Trikes, quads and pre-68 vehicles) efficiency below requirements	major	efficiency only just met. It would appear that the braking system requires adjustment or repair.	Service brake efficiency below minimum requirement

Other parts in Brakes

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.