KEVOZS8

I have recently changed the front rotors with the brake pads . I got the rotors from the stealer and the pads are Textar (4 pad each side with the spring model ) the first two days everything was ok and the third day the juddering began this is not the first time I get this when changing the pads ( eventually the noise goes away by time) but I have been told it was from the rotors last time so I changed them and the problem was not solved .When the pads and rotors are cold in the morning everything is quiet and calm after 10 15 minutes of driving the orchestra began to play . should I check the calipers ? what should I do ?

triston1211

If the juddering is happening when braking it might be the lower arms are on the way out and need replacing had the problem on mine, also did you service the calipers? because they are metal and rust easily so the pads might be stuck on the disc.

KEVOZS8

Thank you for your reply the juddering is coming when doing from stand still to 25-30 mph then it will go away on the highways without braking( the juddering on braking is from the brake pads ) my problem is when accelerating from 0 to 30 mph .the problem is when they are cold everything is normal . how can I service the calipers ?is there any specific way to do them ?

triston1211

Take the brake caliper off remove the pads and clean the caliper pistons with copper grease clean the seals with the pistons. where the pads sit they should slide as the pad wears down if there is rust there you use a wire brush and file. Check the disc to make sure its not worn or warpped, put back together you might want to check the balance on the wheel to make sure its not thrown a weight off.

audinutt

What model car is it? if it has the hp2 (8 pads on the front) I had to order akebono pads to get rid of brake noise.

-Richard

KEVOZS8

Its an 1998 S8 with 8 pads in the front . u had a problem after warming up for 10 15 minutes without applying the brake ?

audinutt

yes, same issue and got worse until it sounded like a bus or garbage truck.
changed to the akebonos and the noise never returned.