Quote:
Originally Posted by Pyro1992
i´ve coded tcm_msa_memory to wert01 in dme but the memory always turn "off" after turn off ignition. also it dont remember...Any Idea? I-Step is 21-03-520....Ive completly disabled MSA but with 2 engine errors this is stupid :/
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Any I-Step newer than July 2019 and your DMEs are locked. BMW decided to many warranty claims for kids that don't know what their doing and blow up engine parts.
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BTW, does your 540i have 1 or 2 DME's