Quote:
Originally Posted by nilo
I heard rumors about losing your warranty if you decide to chiptune your BMW. Is it true? The first thing they do in the garage is hook up your car to a computer. So I can imagine they see when something's going on.
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Of course it is true...anything that you do in your car and it is not authorised by BMW, voids the warranty. Now, if the tuning is a reflash of the ECU, it shows on the Car diagnostics. If the tuning, is a tuning box, then you can just remove it before you go to the dealer and then nothing shows up.