The buzzer looks like a relay in the fuse box,but if the drivers door does not operate the light find the activation switch on the door frame

 

The switch isn't in the door frames of MK4s. It's in the lock module itself as it's an electronic lock. Sounds like a faulty lock module to me that's causing both problems. Very common problem.
Here you go:

http://forums.vwvortex.com/showthread.php?1542461

 

Brilliant thanks Baz!!!

 

could be the lock but some Mk4's have a diode in the woring loom in the door behind the card, it is taped into the loom is about 2 inches long and is about half way along the loom usually blue in colour, they are available seperately and will give this fault if it is faulty, however as i said they dont all have them fitted but it is worth a look first as they are a lot cheaper than a door latch assembly

 

Hey my partner has a mk 4 golf gt tdi and seems to just have the problem with the buzzer not warning her that she's left her lights on unfortunatly she had to find this out the hard way by finding her battery flat after leaving her side lights on... does anyone know what this problem could be? thanks

 

See the comment and link above your post.

 

Hey looked and read that thread that you pointed out but i do think that this does not seem to be my partners problem... she does not have any problem with the door locks its self. The problem being that when her side/headlights are on and the engine is switched off and drivers door is open she does not get a warning sound. thanks

 

could also possibly be the "S" contact switch which is part of the ignition switch, the buzzer will only sound if the key is recognised as out of the ignition when the door is open

 

Has the car ever done this or has it just been happening recently? Do you have another golf or Bora owned by a friend that you can try their headlight switch in?

 

hi sorry aboutt he delay reply its never worked since ive owned it my sister has a golf the same and hers works ok? is it easy to swap the switch? anybody done it or know how to do it? cheers

 

Get someone with vag com to check the soft coding on the CCM. The chime can be coded in and out as far as I know. If it's not activated in the software it'll never work.