In Reply to: A little story re: brakes. posted by Nico/BZZZEE on November 06, 2000 at 17:40:33:
I'm curious whether this rotor replacement policy you mention is actually documented in a TSB or not. Admittedly, its a little late for me to do anything about it, but I would love to shove the TSB under my service manager's nose the next time I go in for scheduled service. HMS gave me exceptional customer service and sold me the cryo-rotors at-cost. In the end, I'm happy knowing that I now have rotors installed that will take a licking and keep on ticking.
My wife's 323i developed a 'rotor shimy' at about 4500mi. The dealer replaced them w/o question. She noticed that the new brakes didn't grab as quickly as the originals. I went and asked the service manager about this. He said that BMW put softer rotors and pads than they should have for the US market. It seems Europeans don't mind the shimy if they get great braking - or so he said. BMW knows that the rotor/pad set up is prone to do this and advised the use a different set up when replacing them hence the difference in the brake feel.
This problem is also present in the Z3s. I do not think that the new pads made a whole bunch of difference in whether your rotors would have warped or not based on this knowledge. If your happy then so be it but I think you bought an unneccessary set of rotors. Especially if they upgraded your rotors to a different part number than the OEM rotor. Maybe worth checking.