One problem related to battery has been reported for the 2002 BMW 325. The most recently reported issues are listed below.
When vehicle had only 33 miles every single dummy light came on the car jumped forward and died out. It had been to several dealerships in different states , and they said it was always something different. While going 65 mph all the lights came on and vehicle stopped. The last time this happened the battery was replaced, and it happened again, and vehicle almost hit someone.