First had the dimmer reset on my instrument cluster. Next couple starts my clock reset. Then I got a battery discharge warning. Then a battery low warning. Then the car died when the dealership tried to start it to test the battery. Replaced my battery. $360. I gave them the SIB about the cable, but figured if I had a cable issue it would have died a long time ago. Car's been running great since. Three other M3s were there for the same thing.
'13 35i M-Sport X3 | JB4 Stage 1 | BMS Intake | H&R Springs | Gloss black grill | CF Wrap and Coded by me | Recaro Child Seats
'15 M3 DCT AW/SO | JB Stage 1 | RKP Diffuser | P3 | M Perf Spoiler | iND Exterior Trim | Recaro Child Seat