I have 1991 bmw 535 central locking not working, how to open the doors?

check and manually move linkage to unlock ---use a long screwdriver to move lock mechanism or if unlocked move latch to release

Check the central locking relay

i cnt set my central locking to open 1 door and second time 3 doors open

Hello Alan,

I would suspect the fuel flap actuator has failed. Open the trunk. In the right rear corner is the access cover. Open it and you'll see some insulation matting near the top. Behind it is a fuse/relay carrier, I believe either fuse 55 or 56 is blown. If so the fuel flap actuator needs replaced. The fuse also controls the central locking system.

Locks need to be resync'd. Lock doors at drivers side, go around to pass side unlock & relic 2-3 times. If you can't do from pass door then try trunk lock. If sync doesn't take, then one of your actuators are bad and I'd have BMW look at it or a good BMW specialty shop.

hi

there is a motor placed inside the doors for the operation of the central lockin system. when you open the door by key this motos is activated and all door locks are released. your problem may because of this motor is failed.

cause of the failure
1.the wire going to the motor may be chopped off.
2.the junction box connecting the wires may be damaged.
3.fuse may be blown out.
4.motor itsef damaged.

so please check weather power is coming to the motor using multi meter. if the power is not coming to it then the problem is with the wires. if the power is coming to it then problem is with the motor.

i suggest you to take to BMW because you need to remove the door pannel its better if they do it.


please vote me if my answer was useful to you.

Providing central locking works when you insert key in lock,try programming keys
Enter car make sure all doors/windows are shut
Switch ignition on and off,remove key
PRESS AND HOLD UNLOCK BUTTON ON KEY
Press lock button on key 3 times whithin 10 seconds and release unlock
Central locking will lock/unlock rapidly to confirm reset
If your key is the type with bmw logo in the middle battery replacement is not possible,as it charges as you drive

Electrical problem. Have it checked from the fuse area right to the doors.

you can take the fuse out from under ther bonnet and open and close the doors manually(boot may not open though), the fault is with one of the locking mechenisms in any door