did you bleed the master cylinder?have bleed the system 3 times ,new pads ,rotors ,stainless steel lines and m5 calipers ,car stops but long pedal ,thanks for any suggestions
Not at all, not necessary, you will find the M5, 535 & 735 all use the same 23mm Master Cylinder.thanks ,some have said i might need a bigger master cylinder [7 series ] to go allong with the bigger calipers ?
Could be the caliper pistons were sticking/binding in the caliper bores when they were extend to the limits of the warn pads.We had a similar problem on the E38 750iL last year and we bled the system 2 or 3 times and still didn't feel right.
It had done 36,000kms since new and I said to the boys I bet it still has the original brake pads , IT DID.
We changed to new pads all round and the pedal felt firm and normal.
Go figure out why but it worked.