Owners Forums for Ford and Volkswagen MPVs / SUVs

I don't think there is an all in one procedure/ writeup on how to do it as yet, I have started to write one but not finished it....... 
There have been a few informative threads though, such as this one, and also this.

Basically the front bumper needs to come off (removal of that is covered here), and then the condenser is unbolted from either the radiator or intercooler depending on what engine is fitted- 90/115ps TDI's have a different setup to 130/150ps versions. The hard part will be getting the condenser out of the front panel, if you don't want to remove the whole front panel and intercooler/ radiator pack etc then you'll need to use a dremel or similar to elongate the access holes (if the front panel has them- later Mk2's usually do) for the condenser mounting bolts in the front panel, this will then allow you to remove the condenser from the front- if you don't do this then the 'wings' that protrude from the condenser (visible in the image of the condenser removed from the vehicle in the thread that I linked above) that the mounting bolts secure through won't clear the front panel and it won't come out.

My Galaxy ran for several months with no condenser and the pipes blanked off so don't worry about it!

Why does it need replacing anyway? Leaking, poor system performance?

Have you checked for any fractured pipes as well? There seem to be a couple points in the front pipework prone to fracturing- near the compressor, also worth taking a read here and here as well.

Yes they are alloy and prone to fracture by the compressor,while degassed have a check round