Offside Front Service brake lagging in operation

[nick9one1]

Hi,

I have a Volvo V40 D2 that failed on 'Offside Front Service brake lagging in operation'. But apparently passed the brake balance test?
It have new pads a week before going in.

I can't quite understand how it passed the brake balance test but is lagging. Surely if its underperforming it would fail on balance?

Any suggestions?

[Dave Brand]

Something's tight in the caliper, which means that it needs a certain amount of force to fully apply the brake, but once the pads are in contact with the disc the full force is applied.

Needs the caliper removed & reassembled making sure that everything's moving freely; probably the new pads too tight a fit.

[E-bmw]

Dave Brand said:

Something's tight in the caliper, which means that it needs a certain amount of force to fully apply the brake, but once the pads are in contact with the disc the full force is applied.

Needs the caliper removed & reassembled making sure that everything's moving freely; probably the new pads too tight a fit.

^^^^ Wot 'e said.

Just something a bit stiff, although I would also expect the report to say it was dragging a bit, but not beyond reasonable possibilities.

Could also be a small amount of air in that caliper.