Quote:
Originally Posted by rory breaker
Do BMW performance shops routinely perform this service? Would love to have someone who knows how to do this just activate the things I want from a list. Does this void the warranty? If a dealer can see these changes (can they?) they could easily point to an ECU change you made as the cause for any malfunction, really.
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No BMW entity, be it a Dealer or a BMW performance shop (unless perhaps they are independant) will code your car.
If you code something obvious, it will be noticeable to your Dealer. However, it does not void your warranty in and of itself. Now if somehow you brick a module, and they can pin that on your coding, then you are likely on the hook for that module. If you are worried about it though, you can just reset the car before you take it to the dealer.