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door lock module "microswitch"
- Thread starter ScottHmk4
- Start date
There are numerous threads on here showing that there are common problems with VAG door locks, most seem to be the microswitches or dry joints inside the lock module. Most can be fixed with a little effort.
If you do get a new lock, as far as I know the key barrel can be kept and the electronics are elsewhere, so there is no recoding to be done. But since putting a new lock in is nearly as much effort as repairing the existing one, you should at least take a look at the first.
If you do get a new lock, as far as I know the key barrel can be kept and the electronics are elsewhere, so there is no recoding to be done. But since putting a new lock in is nearly as much effort as repairing the existing one, you should at least take a look at the first.
They don`t need to be coded or anything... as said the problem is usually dry joints/cracked solder on the circuit board or the plastic button that operates the microswitch wears away - this is what happened to mine. You can see the little white button under the cam in this pic:
I got a replacement module off a lower mileage car (£20) and fitted it to mine, but although the microswitch worked the module did`nt actually lock! so in the end I took the plastic button off the new one and fitted it to my original module.
It`s a pain of a job as you need to take the door card off, and the metal inner door before you can remove the module.
But even if you don`t have a replacement you can probably fix it because the button wears away at an angle - and turning it 180 degrees will allow it to operate for a while.
I tried it on the advice of people here but almost a whole can and a few days later... nothing! I think maybe the fault symptoms have been blurred in that myth.
If it is the switch that`s faulty then WD40 won`t get into it as it`s sealed. It may cure a mechanical locking problem for a short term but not a sensor problem.
I mean, try it by all means if you want.
That might have worked on older cars, but modern locks are more electronics than mechanics. If the key didn't turn or something similar then yes, go for it. But it sounds like yours is the electrics.
this happened to mine ages ago, i got really paranoid with it and could never leave the keys in the ignition or anything and have the door closed if i wasnt in it,
i bought a new unit from david at sere for about £90 then got it fitted at a local garage for £20
seat wanted over £200 to do the job lol......
i bought a new unit from david at sere for about £90 then got it fitted at a local garage for £20
seat wanted over £200 to do the job lol......
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