I'm not sure if I have a problem or if it is all in my head.
I recently changed the front brake pads then the brake fluid, bleeding the system at each wheel whilst using a pressure bleeder at 20 psi.
My brakes feel good and they stop the car. When the engine is off the brake pedal is solid. When the engine is on I can push the brake pedal to the floor but only if I put considerable force on the brake pedal for around ten seconds. Is this normal?
I suspect it is not normal and could be worn seals in the master cylinder. Also having read the Audi workshop manuals I understand that brake bleeding pressure should be no more than 1 bar (~15 psi) or the hydraulic control unit will not be fully bled. So perhaps there is air in there after all.
Please could someone tell me if I have a problem?
I recently changed the front brake pads then the brake fluid, bleeding the system at each wheel whilst using a pressure bleeder at 20 psi.
My brakes feel good and they stop the car. When the engine is off the brake pedal is solid. When the engine is on I can push the brake pedal to the floor but only if I put considerable force on the brake pedal for around ten seconds. Is this normal?
I suspect it is not normal and could be worn seals in the master cylinder. Also having read the Audi workshop manuals I understand that brake bleeding pressure should be no more than 1 bar (~15 psi) or the hydraulic control unit will not be fully bled. So perhaps there is air in there after all.
Please could someone tell me if I have a problem?