2006 BMW 330 Ci Convertible with 74K miles
My 2006 BMW 330 Ci Convertible with 74K miles was and is running perfectly. Went to go somewhere and when I started it the cluster gauges, roof controls and AC Cooling stopped working. The fuses in the glove box are good, the battery is 5 years old but tested good, the alternator and starter tested good. No codes or signals came though. We tried bypassing the battery using a jump box and that did not work. We tried a hard re-boot by disconnecting the battery cables, binding them together with electrical tape and leaving them over night and that did not work. Do you know if a common ground or something that these have in common that could be the problem? Any suggestions?