Central Locking question - doors won't stay locked

[hepkat63]

Hi all,
I have an issue that is really stumping me and hope someone on the forum can help point me in the right direction.

I took off my outer door handles and now the central locking does not work as it should.

When I either use the key, press the fob (or sitting in the car) press the central locking button - the doors lock, then immediately unlock.

To back track - this is what I did:

Took passenger outer door handle off and disassembled it. Cleaned it all up, reassembled it - however, when I put back the microsensor, I heard the doors 'click' trying to lock. I then took the microsensor off and saw I had the barrel upside down.
I then put the barrel the right way up (so that the notch points up) and reassembled.

So, to try and fault find this - i figured that the microsensor switch must be defective (although both doors worked perfectly previously), I pulled the handle off again, pulled off the microsensor, unplugged it from the door and used an ohm meter to check it.

It has three connections - two female, one male. when I used the ohm meter on one side and used my thumb to actuate the microswitch in one direction, the ohm meter registered, the other way it did not. I left the positive on the male connector and moved the negative to the other female connector and again, using my thumb, actuated the microsensor and again, it registered - this time in the other direction, but not the first direction. This i think is expected behaviour.

I have even hooked up Tore's OBD tester to see if there were any faults, however there was none.

I checked that the interior lights come on and go off (thanks Tore) as this is apparently a known issue too.

so, now I am stuck

[D911SC]

It might be something as simple as the connecting rod being obstructed.

I had the same symptom in my 964. Ended up being the passenger (left) door. Removed the trim, ensured that obstructions were clear, cleaned and applied white grease.

All fixed.

[hepkat63]

thanks for that.

I ended up going the whole hog and pulling out all my window frame so I could get to the lock - completely removed it, cleaned it up and put everything back together and it started working !!