Master key cannot start engine
Hello all, I am new to BMW, bought a used 2001 E46 two weeks ago, its a 325xi.
Had just serviced and replaced d MAF, it runs fine, but I think it could be better.
I currently have issue with d master key not starting d car, only d spare key. The remote sensors work on d master key. It's there anything I need do to make d master key start d car?
The color code on d master key is blue.
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