5-Series (E12,E28, E34, E39, E60)Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)
hey! does anyone know how to open the damn doors on a 528i when the batteries (car and remote) are dead? and yeah, i know it can be open by the key, but it aint working too.. this is stressing me out. so anyone plz help! thx! BW!
Originally posted by j_kevin_ca@May 16 2005, 05:20 PM hey! does anyone know how to open the damn doors on a 528i when the batteries (car and remote) are dead? and yeah, i know it can be open by the key, but it aint working too.. this is stressing me out. so anyone plz help! thx! BW!
Welcome to the forum and this is a tough one but think loud with me and feel free to try it at your OWN RISK:
A. Get yourself a second car or better yet another battery
B. A good quality jumper cable.
C. A friend!
1. Now connect the negative (from car or battery) on your engine (yes go under the car cannot open the hood right? yes!
2. Your alternator is located on the left side (driver's side) if the rubber covers are still intacts take it out and jump it with the Positive end from the cable.
Then have this friend (above) UNLOCK the car...don't let him start it you still under it....
Note: I assume it can be done using the starter if it has an easier access
Another trick from Mike S:
My wife has a 1991 525i. She had a dead battery, and the doors were locked. I did not know about the factory E34 unlock procedure. What I did was open the trunk lid, and take off the trunk light cover and light on the right side. With a voltmeter, I was able to sense enough voltage to tell what polarity each leg of the light was. I then carefully jumper clipped a 12VDC NiCad pack to the light socket, and was able to open the locks with the key (in the drivers door). The front right door in that car is a little screwy, so the normal procedure wouldn't have worked anyway.
I thought I would share this as I told it to a BMW mechanic friend of mine, and he said that in thirty years he had never heard that one.
Another trick from Eric:
My battery was to low to open the doors but it had just a little bit left for the alarm. the solution for me was:
First the thing you need:
- a second car or battery
- starting cable (i do not know if it is the correct english word)
- a extra hand
Place the minus on the engine (crawl under the car). On the driver side is the alternator, take the rubber seeling of and place the plus on it. (same can be done with the starter)
Let the second person open the door.
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