If you can't pull up the inside locks then it is probably deadlocked and there is no way you can fix that except by reconnecting the battery.
From Bentley manual 515-2
"To manually unlock passenger door, place the ignition key in the door lock cylinder and lift the door handle while turning the key fully in the clockwise direction"
I guess in USA that means the RHS door?
If that works you may have to synchronize the locking system after fixing the battery problem.
There are other threads where people have connected battery to starter motor leads and other places to get the doors ope. You still need a key though.
My daily is a Mitsubishi HSGR (but I wouldn't mind an e34 525i)
Last edited by Penngwyne; 05-12-2011 at 11:23 AM.
Reason: extra bits