Originally Posted by
A42.0T
Hi All, I'm driving a 2016 A7 and I've put about 17k miles on it. About 1000 miles ago, I started to notice some wobble while braking. It has become much worse since. I suspect the rotors are warped and need to be replaced. I'm a bit frustrated to have this problem at such a low mileage. Have you guys done aftermarket rotors and pads with good success? If I'm going to spend the money to fix this, I'd rather buy something that is going to last better than the oem setup. Links to pads/rotors would be great. What should I expect to pay for installation? Last, is this worth fighting with Audi about to see if they will cover this? Thank you.
I would push Audi to fix but I am not 100% sure they will since they might claim it is not a manufacturing error.
In my experience the term (warped rotor) is a bit of a misnomer. The rotor isn't actually being "warped" instead what is happening is a small amount of pad material is transferred to the rotor and bonds with the metal. This deposit causes an uneaten surface, which causes the vibration or what people call a "warped rotor."
The best way to avoid the issue is a proper brake-in process. Here is a quote from StopTech's website that has some good info on warped rotors:
http://www.stoptech.com/technical-su...nd-other-myths
"There is only one way to prevent this sort of thing - following proper break in procedures for both pad and disc and use the correct pad for your driving style and conditions. All high performance after market discs and pads should come with both installation and break in instructions. The procedures are very similar between manufacturers. With respect to the pads, the bonding resins must be burned off relatively slowly to avoid both fade and uneven deposits. The procedure is several stops of increasing severity with a brief cooling period between them. After the last stop, the system should be allowed to cool to ambient temperature. Typically, a series of ten increasingly hard stops from 60mph to 5 mph with normal acceleration in between should get the job done for a high performance street pad. During pad or disc break-in, do not come to a complete stop, so plan where and when you do this procedure with care and concern for yourself and the safety of others. If you come to a complete stop before the break-in process is completed there is the chance for non-uniform pad material transfer or pad imprinting to take place and the results will be what the whole process is trying to avoid. Game over."
Sent from my iPad using Tapatalk
Reply With Quote
Bookmarks