Looks like you have several problems, 1 is the battery power and the other the locking.
Have you checked both fusible links?
http://twrite.org/shogunnew/files/E3...s_compiled.pdf
http://www.ow.no/index.php?option=co...&g2_itemId=140
also check in front of passenger rear seat if the battery ground cable has good contact, it is under a plastic cap
http://www.ow.no/gallery2/main.php?g...serialNumber=2
same with ground cable of the engine to chassis in engine bay.
Try to resync the doorlocks:
Unlocking procedure:
1. Insert the master key into the front right door.
2. Pull up the door handle.
3. Turn the key counterclockwise to emergency unlock position 1.
4. Open the door.
5. Close doors and turn the right front door lock to the synchronize position 5.
http://www.bmwe34.net/E34main/Trouble/Locked.htm
Deadlocked Driver's Door
there are 2 motors inside each of the four door lock actuators. One motor locks and unlocks the door, and the second motor sets and releases the deadlock.
You want to operate the deadlock motors, to release them. Open the 3 doors (for safety!) and lift the rear seat. Remove the RM module from its sockets.
Locate pins 1 and 14 on the BLK socket connector (X258), and insert a finishing nail into each of these 2 contacts. Pin locations in X258 are shown on pg 8500-05 of the ETM.
Now use a 12V booster pack and briefly (1 second) connect NEG to pin 14 and POS to pin 1. You will hear the deadlock motor operate in the drivers door, releasing the deadlock. Now you can open the drivers door as normal.
Wiring shown on pg 5126-02 and 03. Again, leave the 3 doors open while you are doing this, for safety!
To prevent any future deadlocking, cut off pin 14 of the RM.
https://www.bimmerforums.com/forum/s...light=deadlock