Bmw boot wont open

SOURCE: I cannot open the doors

This is a common fault on the series 3 usually down to the General Module 5 or GMV relays breaking down. Item is situated behind glove box reasonably easy to replace. Cost from BMW about £240.00 Can be found through breakers about £60.00. Keys will have to be recoded. See www.bmwgm5.com for more info.
bmmonks

SOURCE: Locked out

Connect jumper cables to the starter connection which should be visible under the car, hot to the bolted battery cable connection, negative to any ground. Connect the other end to a battery after you have crawled out from under the car.  Also consider; my BMW had the battery in the trunk, which should open with a key.

SOURCE: 2003 bmw 325i keys does not unlock and the door

insert the key into the drivers side or passender side front door, twist the key and pull open on the handle at the same time and the door will open. It might take a few times to get it, but this does work, source BMW AG Munich.

SOURCE: 2002 BMW 325 - key locked in trunk

There are several suggestions out there on how to retrieve BMW keys from the trunk. Many of the ways I tried failed, and it takes 2 to 3 days to get a new key made up. In the coupe there is the center piece in the back seat that folds down. Then on the back wall there is material that will fold down that is held up with Velcro. Behind that you will find a rubber insulation that is mostly cut and looks like a door, but not all the way. Carefully cut the rubber to remove the piece. Now you will find a metal wall, but there is a large piece that is tack welded on. I got turned around and kicked it with the bottom of my foot and got 3 sides loose. Then a softball bat knocked the final side loose. Pull that out and trash it, the final barrier is the insulation that is held in place with plastic clips that can just be pushed down. After that you can a pretty large hole to work through and get the keys. Just put everything back in place other than the metal plate and you will never know anything was done.

SOURCE: 2006 BMW 323i Passnger Door lock will not lock / unlock w/ remote

Replace fuse 57 (15 amp) then disconnect battery and wait 30 to 45 minutes before reconnecting the battery.

My 2006 BMW 325I had the same problem with the door locks not responding. I checked all related fuses and found #57 (15 amp) was the only related fuse blown. I put in a new fuse and it still would not work. I then disconnected the battery for a while then once I reconnected the battery everything worked fine.

I believe I blew the fuse while repeatedly pushing the unlock button rapidly while walking across the parking lock to the car. I suggest only pushing the unlock button only once or twice.