Quote:
Originally Posted by chmura
My buddy took his BM3 stage 1 for the annual bmw oil change two weeks ago. He didn’t flash back to stock. I would not think it’s necessary to change back to stock unless you have a warrant claim.
He made it clear to the SA not to perform any DME updates. Everything was good during vehicle pickup.
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I doubt if it's really necessary when just going in for an oil change. However it only takes 2 minutes to flash back to stock and re-lock. The whole process of flashing stock and clearing all hidden fault codes is less than 10 minutes. Going back to your exact tune setup is easy as well.