Brake failure at Mosport International Raceway June 6 & 7 2009

[FrenchBoy]

Originally Posted by syncros

Here's the result of the dealer investigation: Front rotors are warped by 0.006" while BMW replaces any rotor with more then 0.003" deviation. Rotors in order and covered by the extended maintenance plan. At the same time, they have order 2 seals for the differential. (both side leaking).

Do you any good recommendations to make sure that it won't happend again with the new rotors?

Thanks,

Good to hear BMW will pick that up. I am assuming you put the stock pads back on and kept quiet about using other pads.

[syncros]

Yes.
I've tracking various cars for about 5 years now and never had brake issues so I do a full cool down lap at the end of each session, don't but the handbrake and taught I did a good bed-in. I will have to make sure next time that I do a better job at bedding the pads in.

[von_zoom]

A key to good brake management is the cool down process after a session on the track. The last lap, cool down, is exactly for that purpose, so stay off the brakes. Additional driving after entering the paddock area, around the paddock or surrounding road is also good. Important to keep off the brake pedal, including when you come to a stop where you are pitting. Kill the motor and use the transmission to come to a full stop.
vz

[sayemthree]

Originally Posted by von_zoom

It is my 5 series - sorry, I should have made that plain. I have not tracked my E92 to any degree - yet. I was merely attempting to relate to the shimmie problem. I might add that I also tightened all the adjustment capabilities to my 525 shocks/suspension. I don't know if the shock set up on the E9X needs to be wrenched after track sessions, or if that can contribute to a shimmie situation.
vz

WRONG FORUM!!!!!!!!!!!!