307 5dr central locking problem

My 51 plate 307 ,has a intermitant problem with the central locking,locks
fine,everytime,but when i unlock now and again the driver door wont
unlock(all others fine),locking again then unlocking used to cure this but
its getting worse,although when i use the key to unlock manually its
ok...does anyone out there know the probable cause...thanks in advance.

 

Worn door lock solenoid or accuator?? This is the motorised part which
moves your lock either way to lock it or unlock it. It works ok when
you you use the key because you're already giving the solenoid a push
to move as you turn the key.
I would take it in to your PUG dealer and ask them to replace this
part.
Sometimes a weak or dying battery can also show these signs of wear.
Because you have 5 solenoids triggerring all at once, this will cause
quite a strain on any battery.
Dan.

 

Yes, that is absolutely right. The battery condition may be an issue.
Unlocking my 307 doors recently killed my 307 battery - which after 4
1/2 years, was due to be replaced soon, anyway.

Ed.

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http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=190008318523&sspagename=ADME:L:RTQ:UK:1&rd=1

 

BobbyTin has got it all sorted.
I would replace the battery and the solenoid at the same time. For
that price, its not much to lose.

Dan

 

The part is on order,...which battery do u mean?the key fob?Also i was
under the impression that the solenoid was built into the lock
unit.Where abouts is it located as ,under the instructions for removing
the lock mecanism(wrong spelling i know) in the haynes manual,it doesnt
seem to mention a solenoid.

 

It must be all in the one unit,solenoid and all, remember the ebay link
you were sent? You need to replace that.
As far as replacing the battery, I meant the car battery, not the
keyfob.

 

Sorted!! Part came today and fitted it in about an hour,easier than i
expected,everything working now..just thort id let u know and thanks
for your help...martyn.

 

Hi guys,

Sorry to be a pain, I have this exact same problem, my drivers door unlocks intermittently when I press the key fob, it always unlocks with the key. I had a new battery approx. a year ago so having read this thread I'm sure it is the solenoid. from reading the forum I feel confident that I could replace the part myself. That said, I'm not sure what the part looks like or what I need to buy, the eBay link earlier in the forum has expired, would someone be kind enough to post a more recent link so I can see the troublesome part and order a replacement.

Many thanks in advance