Rear door won't open from the outside.....

As above, the rear passenger side door on my 2004 Mk5 won't open from outside, after the the doors have locked/un-locked. Once you open the door from inside, it then opens fine from the outside! That is until you lock/unlock the doors again..........

I did tighten the cable that goes from the handle to the lock mechanism, to take out a bit of slack in the cable, but this hasn't made any difference.

So I'm assuming it's something to do with the central locking but not sure where to start.

probably the lock itself is abit stuck or the c/locking solenoid
try cleaning them both up see if that works

Thanks. Where do I find the central locking solenoid - that's NOT located within the door lock, is it?

Also, someone else has told me it may be the 'door module' - what's meant by this ie is it the same as the cental locking solenoid, and is it true if you fit a new one, it has to be coded in (to the CCM presumebly)?

You have to remove the door skin to get access to the lock unit so whilst it is out fit a new one. One very big causation, keep the door skin screws in the correct order.

FIXED! Replaced the door lock unit and all is now fine.