Repairing a BMW Z4, jumpstarted the car plenty of times, everything always worked. Jumpstarted it yesterday and the windows don't work, radio and sat nav screen,roof and indicator on the dash doesn't work. Had it plugged in and it said open circuit, wouldn't communicate. The heated seats DO work. None of the fuses were blown as well, including the main one in the boot and every fuse under the dash.
Any suggestions? Replaced the battery still not fixed it.
Any suggestions? Replaced the battery still not fixed it.