Quote:
Originally Posted by singularity
I think installing any aftermarket part automatically voids the BMW warranty, even if no damage or any other issue is witnessed. Correct me if I'm wrong.
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I don't think that is correct. At least not in the USA.
A section of the Magnuson Moss warranty act specifically states that a Dealer must show that the offending part caused the issue to prove it is out of warranty, hence you cannot have a BMW dealer telling you they can't replace your fuel pump because you have aftermarket springs on the car.