Z3 Phantom Battery Drain
My car has decided it is no longer going to hold a charge over night.
Things I have checked:
Battery - it has been tested, but I suspect water in the casing + freezing temperatures
CEL's - All have been delt with - P0505 and P0455
Sound system - The entire system is ran through a bank and isolator switch
Any ideas past that that could be the culprit?