PrimetimeOriginial
New member
My friend helped me add the CCS charging to my 2018 M3 with a DIY kit. Everything seems to be working like the CCS, Supercharging, regular charging but I have a weird error in the service menu: "CP_a077_invalidMacAddress". Haven't seen anyone else mention this with a DIY CCS upgrade. My friend said this is the first time he's seen this. Anyone else out there with the DIY CCS setup? Is this error normal, or a sign of big trouble?