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      12-30-2009, 06:31 PM   #311
aka Mike
FoShizzle's Avatar

Drives: AW E92 335is
Join Date: Jun 2008
Location: LA/Ventura, CA

iTrader: (11)

Originally Posted by BlindGoldfish View Post
FYI, I was talking with my dealer about what might void the warranty, and they said anything aftermarket could possibly if it is found to have caused the problem. He gave an example of a 2009 335i with a full exhaust system that threw some code eventually and they couldn't do the warranty work because of it.
It is quite common for a dealer to refuse to do warranty work on a modified car if the modification may be related to the problem. There are many members who have been told by their dealer that work cannot be performed on their car unless it is returned to stock. Once returned to stock warranty work can proceed. (I'm talking about exhausts)

To completely deny/void a warranty claim based on an exhaust flapper, BMW would need to prove that an open exhaust flapper specifically caused damage. What is more, (assuming you plug it back in when you goto the dealer) they would have to prove that YOU unplugged it and absolutely rule out a bad connection.

Voiding warranty based on tuner codes is a totally different story.