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I'm not surprised: I've got a British car, so my driver door (which is the one that had the problem all along) is your passenger door (which just started having the problem) :)
I still didn't get time to take my lock out, but hopefully soon. In the meantime, I can still use the key in the driver's door, so it's not all that bad for me.
Since you are an expert, you're welcome to do the 2000 miles return trip to fix mine :p
 

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Update 2: The passenger was fixed yesterday in the same manner. The microswitch on the passenger side was soaked in the same type of stiff grease, rinsed and lubricated with WD40. It now works, but the drivers door is not working any more, even in room temp.
Can some grease have moved down from parts inside the locking unit onto the microswitch again, or are we facing some kind of multiple error ?

Any tips from experts will be greatly appreciated ! [scratch]
 

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There's a lot of talk about WD40. Anyone tried another lubricant to get the job done?

I work for Jig-A-Loo and am interested if anyone has tried the product and I'm free to answer any questions about it. It's a sillicone based lubricant and water-repellent. It can be used like WD40, but since it contains on grease, oil or wax, it's much safer and won't cause build up.

If anyone is interested, we are letting people try it out for free (to see for themselves if they want to make the switch). Head to http://www.jigaloo.com/us/e_tryonefree.php for the downloable rebate form.

Thanks,
Tom with Jig-A-Loo
 

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Central Locking

@Exsodius
Can the red dot (to apply the WD40) be accessed without taking the latch lock mechenism out of the door?


Problem solved!

My central lock has worked fine for a month now. Even when its raining or are cold.

What i found after cleaning the lock mechanism was that it has a microswitch like in your PC mouse buttoms. In picture you see the black switch with the red dot on it. This red dot is a water proof rubber seal for the switch pin. This red seal made the switch pin hang when it was cold. In my case it was full of grease. I measured the switch with a multimeter. When pin is pushed inside the doors are locked, when the pin is out the doors are open. So what happend was that when unlocking the car the switch stayed closed. And the other doors sent a negative signal that was telling the driverdoor that they were unlocked. Then you had two negative signals making a short circuit. And then all doors stopped working. So i believe many focuses have this problem. And have probaly changed the whole unit with a new one. But that is expensive.....

Tip: Clean and spray microswitch with WD-40 if you have this problem.
 

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After one year, I eventually moved to a place with a driveway!
So I got around to take my door apart, found and sprayed clean the microswitch, and my central locking is working again! [woot]
So thanks to everyone around for the great tips [clap]
 

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Im afraid not, same sympthoms in my 5 year newer Mondeo this winter, below -10.
It even lock itself with the motor running ! Spooky !
 

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Discussion Starter #29
In english:

This problem will come back unless you keep spraying som wd-40 on the microswitch. I have made it simple to do. Just have the lowest screw on the door unscrewed all the the time. You know the 3 torx screws at the door lock. Now i can spray wd-40 in that hole whenever i want. It works very good, i can even hear a click from the central lock while spraying. And then it suddenly works again. It would have been nice if i could find a spray that is better than the wd-40 so i wouldn't need to spray it once a month.



In norwegian:

Problemet kommer tilbake så lenge du ikke smører mikrobryteren. Jeg har gjort det så enkelt nå at jeg har den nederste skruen av de 3 skruene på låsen i døren utskrudd hele tiden. Så nå er det bare ett hull der som jeg kan spraye inn wd-40 når jeg vil. Det fungerer så bra at jeg til og med hører mens jeg sprayer ett klikk fra sentrallåsen nå den plutselig virker igjen. Det er bare litt wd-40 som skal til. Hvis jeg hadde funnet en spray som var bedre hadde jeg sikkert ikke trengt og gjort det 1 gang i mnd.
 

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Yep, my fixed central locking stopped working few months ago again. I'll have to try your tip exsodius, although IIRC, the bottom screw hole is nowhere near to the switch, so I guess that you need a WD-40 flood for anything to happen :( Still worth trying since I don't fancy taking the door apart again.
 

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Discussion Starter #31
Yep, my fixed central locking stopped working few months ago again. I'll have to try your tip exsodius, although IIRC, the bottom screw hole is nowhere near to the switch, so I guess that you need a WD-40 flood for anything to happen :( Still worth trying since I don't fancy taking the door apart again.
Yes i know the hole is nowhere near the switch. But when i had my the central lock in my hands last time i thought of this. So i studied these holes an where the wd-40 would go when aplied from the outside :) So the microswitch is about two inches below this hole. If you use the plastic tube on the wd-40 and insert it in the hole and spray right in the hole while moving the tube a little in circles you should be ok.
 

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Exsodius, your last fix is just incredible ! Thanks a lot !

I did what you described on the front doors, and nothing happened. Then I gave the rear doors a real spray, and while I sprayed the locks started to kick !
Now everything works fine for the first time in 5 years ! Fantastic [cheers]
 

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Another fix here! I was getting intermittent locking/unlocking of my central locking, tried loads of things and now tried blasting down that hole where the bottom screw goes and bad a bing its working every time!!

Cheers for the tip!
 

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my remote central locking isnt working... well actually it will lock the passengers side dor but it immediately unlocks again, so wont lock.

If i put the key in the drivers door it will lock and unlock.
if i put the key in the passenger door it locks then straigh away bounces unlocked again.

is the idea of spraying wd-40 likey to work for me to or do i have a different fault??
 

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This sounds like a similar syncronising problem as discussed by us in the thread. Try spraying as described. It might lube the micro switch, and give correct locking state from all locks.
 

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This sounds like a similar syncronising problem as discussed by us in the thread. Try spraying as described. It might lube the micro switch, and give correct locking state from all locks.
hi this fix with wd40 in screw 3 what year focus is it does it apply to an 06??

if so how do i know which is the correct torx nut?

ty
 

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Discussion Starter #37
hi this fix with wd40 in screw 3 what year focus is it does it apply to an 06??

if so how do i know which is the correct torx nut?

ty
Mine is a 2001 and it is the lowest hole on that model. Don't know if it is the same with 06. But ask "Bønna" he made this work on a newer mondeo too.
 

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Mine is a 2001 and it is the lowest hole on that model. Don't know if it is the same with 06. But ask "Bønna" he made this work on a newer mondeo too.
Thanks for the reply i will wait until he comes on and hope he replies thanks for the info too
 

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When using the key my central locking is working fine. But, when using the remote fob it does not. I've tried to reprogram the key but after the chime sound (which indicates that the programming mode is ON) nothing happens when I press/hold one of the fob switches. I have also tried replacing the battery and the micro switches in the fob but still the same. Then I've tried to program another fob (borrowed from my uncle, same car, same fob type) but still the same.

Any idea how to solve this issue? Central locking module is 98AG 15k600 DB, CL, RF. How to ceck if the module is OK?

My car is focus 1.8tddi 1999.

Thanks!
 

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I noticed the central locking problem driving my girlfriends 1999 Focus for the first time - when the doors unlocked a mile down the road!

Removing the screw and spraying WD40 into the hole for 20 seconds seems to have done the trick, thanks exsodius!
 
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