1990 BMW 535i Q&A

1990 BMW 535i Question: dead baterie

batterie completly dead can not open doors with the key called aaa cant open doors with there tools ether please help do i have to break a window to open the car to change the baterie? -
Answer 1
If you can get the car on a lift or get under the car somehow, the battery can be back fed from the starter circuit, it's not easy, but doable. Better if a mechanic do it. Zee -
Answer 2
you have to turn the key more to the left.. their is a manual switch that engages.... problem solved if your battery is dead -
Answer 3
Even with a dead battery you should be able to use your actual key to insert and unlock the door or trunk to get to the battery. -