DIY Air Conditioning
The first thing to do is to buy the required parts. You will need new o-rings at a minimum.
A rebuilt compressor can be found at an online saab parts store or on ebay. Buyer beware on these.
My rebuilt compressor failed right away because the rebuild was not done to specs. I ended up buying a new compressor in addition to buying the rebuild!
I bought most of the components from eeuroparts.com
and from the saab site. Eeuroparts does not sell the solid a/c line that goes from the
receiver/drier to the condensor, but this line is the first one that breaks when trying to replace the o-rings!
The O-rings can be a little confusing when you buy them from eeuroparts, so here is a breakdown of what part numbers go where. Some of the hoses
come with o-rings already installed, while others do not. The same thing is true for the rebuilt compressor. Before buying all of the o-rings you
should see which ones you really need after buying the hoses.
Do not settle for regular rubber o-rings. The AC ones are made to withstand the freon gas and oil.
Regular rubber ones will deteriorate quickly and cause lots of leaks!
The hoses are straightforward, there are three to buy.
Part #: 9482365 is the main hose that connects to the compressor and has two ends on it.
One end goes to the evaporator and the other end goes to the condensor.
Part #: 9482035 is the hard line hose which goes to the receiver/drier to the condensor.
Part #: 9482027 is the hose which goes from the evaporator to the receiver/drier.
I also decided to replace the expansion valve and receiver/drier as they were cheap.
I chose not to replace the evaporator since the seals can be replaced and it is the most expensive part of the system.