In Reply to: Potential Warranty Issue posted by Ian on October 20, 1999 at 10:01:19:
: I'm considering buying a [BMW] OEM CD changer for my E46 and installing it myself. However a friend of mine said that last year when he looked in to the same for his AUDI A4, the dealer explained that installation by a party other than the dealer could potentially void the manufacturer's warranty on the car's electrical system. Has anyone heard of similar concerns from BMW owners and/or dealers?
The only way any Manufacturer can get out of honoring a warranty claim is if they can prove that the problem was caused by something somebody did or a non OEM part you added. If its an aftermarket part then maybe that manufacturer is responsible, if its labor then whomever did the labor may be responsible. If you install a BMW changer yourself and have a problem later on BMW has to honor the claim or prove that it was caused by something you did wrong. Of course they can always refuse but this is the way it is intended to work. Gotten into this situation alot with aftermarket High Perf- parts and manufacturer has to pay unless they prove the failure was caused by the parts I added. Of course they only know what the dealer tells them so it helps to have a good relationship with them.