Quote:
Originally Posted by never
To void the warranty, BMW has to prove that the aftermarket part caused the issue. The consumer doesn't have to prove that it did not cause the problem.
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To an extent ... I beleive if they "suspect" the mod to be the cause they can refuse to service the warranty, but if you then remove the mod, and reinstate the system to factory, and the fault still occurs, then they are obliged to service under warranty.
And then if they can demonstrate that in removing the factory part, you damaged anything, all bets are off again.
Now, I have to admit my experience is based on warranty issues with IT, but there is some amount of protection for vendors in that regards, but there are also other "user servicable" components that they can not prevent you touching.