It could be either one, or it could be the footbrake valve. You should get the brake system checked with the gauges to see what is happening.
If the flag drops, then you should not drive the vehicle as you do not have any reserve braking capacity.
Which RM do you have ?
Daphne Robson Jun 7th 2016, 14:25
When the brake pedal is depressed the flag flickers. This has gone on for a long time but it hasn't cleared itself.
Also, there is an intermittent knocking under the front right hand passengers seat which we are concerned about. Does this mean changing an accumulator and if so which one?
