MOT defects: Service brake imbalance (Service brake performance)

Brakes

2 defects: 1 dangerous, 1 major. 1 can be given as an advisory instead.

Certificate wording	Severity	As an advisory	Inspection manual
Service brake imbalance across an axle by 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
Service brake imbalance across an axle	major	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.

Pre-2018 names for this part

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