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Model specific boards => Golf mk3 => Topic started by: mikey P on 16 April 2007, 19:25

Title: Faulty central locking pump problem
Post by: mikey P on 16 April 2007, 19:25

We have not had our mk3 golf GTI long and it has developed a strange fault when you unlock the car from a key as normal the doors unlock fine but then there is a continual noise from a small box under the driver side rear light, unfortunately the problem has got worse and has now totally flattened the battery.  :cry:
Once I have jump started the car can I just unplug this box/ does it control anything else is it likely to be simple to mend, is it a common problem?

Title: Re: Faulty central locking pump problem
Post by: Len on 17 April 2007, 08:58

That is the air pump that operates the central locking.
If you cant be arsed to renew it then it wont affect anything else.

Title: Re: Faulty central locking pump problem
Post by: mikey P on 17 April 2007, 20:00

Thanks for reply the problem seams to be that when the doors are unlocked the pump keeps running (and makes a lot of noise) as the pump keeps running longer than it should, what is likely to be a fault? The pump or maybe what ever sends the electrical power to the pump, a relay, or something else?
I would like to repair it if not too costly.

thanks again Mike

Title: Re: Faulty central locking pump problem
Post by: Len on 17 April 2007, 20:44

Does sound like a relay dont it! Not sure if there is one but I'll check and come back to ya. Unless one of the other bright sparks around here beats me to it! :grin:

Title: Re: Faulty central locking pump problem
Post by: boneybradley on 17 April 2007, 20:50

Here's your relay location's

(http://i88.photobucket.com/albums/k165/boneybradley/000544430201.png)
(http://i88.photobucket.com/albums/k165/boneybradley/000544430201-1.png)

and it say's there is a unlocking control unit behing the center console

Title: Re: Faulty central locking pump problem
Post by: Overseer on 18 April 2007, 12:04

err if the pump keeps running theres a leak in the pneumatic hoses.

it'll keep the pumpo running and it'll burn itself out.. had this happen with my old Polo.. cost me 125 for a new pump :(

.. in my case the leak was caused by a broken petrol cap lock (the spikey thingy)

Title: Re: Faulty central locking pump problem
Post by: monkeyalan on 18 April 2007, 12:50

^ what he said, it's a vacuum leak somewhere.  :smiley:

good luck finding it.

Title: Re: Faulty central locking pump problem
Post by: Len on 18 April 2007, 13:17

Place that gets a lot of wear would be the door gaiters. Worth a look there.