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gouba

e30 central locking

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Im having an issue with my central locking. Basically it's stopped working. The symptoms are

* alarm can no long control central locking

*i have to open each door manually, unlocking the drivers door doesnt unlock the passenger door (and vice versa)

*Fuel cap is locked and cannot be opened, i have had to manually open this by sliding the mechanism back so I can put petrol in my car.

*initially when it stopped there was a noise coming from the central locking relay but then it stopped.

I pulled out the central locking relay and the thermal fuse hasn't gone. In addition I took the cover off and tried the door again and there was no movement from the soleniods.

I have checked the fuse and it's not blown.

Any suggestions as to what it could be? Is there anything obvious I have missed before I try replacing the relay?

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Check and try another central locking control unit, its behind/underneath the RHS front speaker

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I replaced the central locking relay, with no luck.

Anyone got any other suggestions before pay for an auto electrician? :(

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This happened on mine, a pin or something had come out of the drivers door lock and was lying in the bottom of the door, reattached and it worked again.

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Try cleaning the contacts in the white door plug that goes between the door and the body, will be under a rubber boot, they get corroded easily

Edited by Brams

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I've just been reading and heard that wiring corrosion is a huge issue. I'll have a look and see if that fixes it.

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I've just been reading and heard that wiring corrosion is a huge issue. I'll have a look and see if that fixes it.

After stuffing one of these plugs i can recommend the following if it is coroded stuck; there is a white? centre tab on these plugs, grab that gently with some pliers, with the other hand release the two side tabs and pull it out. I have seen some threads saying to push the plug through the opening and then disconnect. Thats good for mangling the plug.

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After stuffing one of these plugs i can recommend the following if it is coroded stuck; there is a white? centre tab on these plugs, grab that gently with some pliers, with the other hand release the two side tabs and pull it out. I have seen some threads saying to push the plug through the opening and then disconnect. Thats good for mangling the plug.

Turns out it was corrosion and a coating on the pins. $30 and some crc contact cleaner and now it's working fine. I wish i'd check that in the first place.

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