Key doesn't lock all doors?

[elbasha]

I have this weird lock setup where:

If I lock the car from the driver side only that door and the one behind it gets locked, the passenger and the one behind it do not work.

If I lock it from the passenger side all of them lock except the one behind the passenger.

I don't really care about the one behind the passenger, but is there any way I could and see what the problem is and how to fix it where the driver door will lock the passenger and unlock the passenger when I use the key there?

[Paul in NZ]

Front passengers door actuator

[elbasha]

If you don't mind, could you just let me know more info on how the door actuator works and are there any instructions on how to install it?

One thing though, if the actuator is not working, how come if you open the passenger door the driver's door and the one behinds it open? shouldn't open alone?

I checked online and the door actuator for the back are the same from left to right, same with the front. I am thinking of switching them up to test them and see if they work before I actually purchase them.

[525i winter driver]

If you don't mind, could you just let me know more info on how the door actuator works and are there any instructions on how to install it?

One thing though, if the actuator is not working, how come if you open the passenger door the driver's door and the one behinds it open? shouldn't open alone?

I checked online and the door actuator for the back are the same from left to right, same with the front. I am thinking of switching them up to test them and see if they work before I actually purchase them.

if the actuator works when you unlock from the ps can't you assume the actuator is ok?

it sounds like the signal isn't reaching your ps actuator when you unlock from the ds and the rear door is a seperate issue. i would check the plugs and wires leading to both front actuators and the handles before replacing the actuator itself... i had a similar issue when i replaced my front doors. i don't know which was what but after i cleaned a few plugs everything worked great.

[elbasha]

How would I check the wires and plugs?

[gale]

Sean & Johan's page has alot of info. It's for an e32 but the doors are very similar for e34's.

http://bmwe32.masscom.net/

go to "body & interior" and "doorpanel removal" and "doorlock mechanism"

Bruno might also have more info at:

http://www.bmwe34.net/Wiki/tiki-index.php

[shogun]

How would I check the wires and plugs?

online wiring diagrams and a digital multimter.

[Washburn]

Isn't there a lock sync procedure you should try first?
I tried mine per the manual, but the key detents are not what they say they should be, adn I'm confused. Latest lock sync procedure?

[Ferret]

Isn't there a lock sync procedure you should try first?
I tried mine per the manual, but the key detents are not what they say they should be, adn I'm confused. Latest lock sync procedure?

I was thinking something similar, before you go taking actuators out, why not try resetting the lock mechanism?

Get everything open and unlocked, including the boot and disconnect your battery for 15 minutes. With the battery disconnected turn your ignition key to start, take the key out and reconnect your battery etc.

Key in the drivers door and lock/unlock everything slowly a few times?

It sounds like something interesting is going on with this one, like something's gone out of synch as all your motors are working, just out of time!

[elbasha]

I will try that Ferret, I am guessing the "boot" is the trunk?

[Ferret]

I will try that Ferret, I am guessing the "boot" is the trunk?

Yeah sorry, :P 'boot' is a uk term for 'trunk' :D

[elbasha]

nvm.

[elbasha]

I hope someone can help me

All the doors lock when you lock them from the passenger side.
All the doors except the passenger door locks when you lock from the driver side.

Same with unlock.

[Bo525i]

Passenger door actuator!

I had the same with my drivers door.. Lock the car from driver door: all locked, lock the car from the passenger door: all locked except driversdoor!

So the opposite of your door, I changed the actuator and now it works perfectly! ;)

[elbasha]

I guess I have to open up that panel again, thanks for the information. It was really weird, my rear passenger door would never lock or unlock with any of the other doors, today I noticed it locks and unlocks.

[Paul in NZ]

I guess I have to open up that panel again, thanks for the information. It was really weird, my rear passenger door would never lock or unlock with any of the other doors, today I noticed it locks and unlocks.

check the wires on the lh "trunk" hinge under the plastic sheath.The insulation can break(and the wires) leading to shorts.Because the trunk is also part of the locking circuits ,a short there can affect the whole shootin match.