Quote:
Originally Posted by v.ru
My biggest concern - with regards to getting an X5 35d and chipping it - is what I've read on some forums - that BMW now installs firmware on all turbo cars, that detects tunes and flashes a "red flag" whenever you bring it in to the dealer. Dealer reports to BMW, BMW cancels warranty on items related to the tune. You're screwed. Is this something that has been proven yet? AFAIK from 5series forums, this is not necessarily true - not yet, anyway. But some people on e90post seem to think it is as true as Obama is an American Citizen... too harsh for a newB? Ask Calton and Kerry about me  |
Not precisely true.
There are 'flags' that will show up if the software is changed. These can be cleared.
There are, however, operating parameters that are captured by the DME that CANNOT be cleared. If they examine the DME and find operating conditions outside the stock ranges they can infer the car had been modded and reset.
Truth.
You blow up an engine on a turbo car, the DME is getting sent to BMWNA for analysis.
If a dealer discovers this (and there are rumors of cash bonuses for techs that discover this in other models.) BMW will not 'cancel' the warranty. You will always have a warranty. BMW **will** have an indication the DME had been altered...they may or may not cover a claim, depending on if they can say the power change caused the failure. Your window regulator breaks, it will still be covered.
Quote:
Originally Posted by bimmerlex
OP, all the "red flags" can be cleared with BT cable/software. Get the tune, get the BT cable and modify it all you want.
You might wanna check with Terry from Burgertuning. He has X5D, and already made a JB chip for it.
Zhelayu udachi.
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This is partially true. You can clear these flags. You CANNOT clear the operating memory. Terry knows it, and really never answers the question "Can BMWNA detect the mod if the DME is sent to them?"
At a dealer level you might get away with it.
So in the end it is all 'what is your risk tolerance?'