Quote:
Originally Posted by bmwjpn
Directly to the battery. I used to work in car audio so I am 100% positive on the wiring as per BimmerTech less than detailed instructions.
Wonder if it's a coding issue?
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Shouldn't be a coding issue for that. Where did you attach the earth lead?
I use this point just on the wheel arch as a secure earth point:
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Current car: 2017 BMW G30 520d M-Sport, BMW F46 218d Grand Tourer
Previous cars: 1989 BMW E30 316i, 1998 BMW E36 323i Coupe M Sport, 2009 BMW E87 116d, 2013 BMW F31 320d M-Sport