AB> I've managed without air conditioning in my car since autumn but my wife
AB> and I have a baby on the way so I'll need to get it fixed before next
AB> summer. I've been told that it's not just lack of Freon. Besides the
AB> compressor, what other things are there to go wrong? The car is a 2005
AB> Toyota Matrix (Corolla hatchback).

If it is low on Freon, there is a leak somewhere in the system.  Depends on
how big of a leak.  

I would buy a can or two of the A/C charge with leak/fix in it.  Give that
a shot and see if you are good.

There are many parts of the A/C that can leak or be issues.  I had a leak
in the accumulator, which isn't more than $100 or so for the part - but
getting to it was a good deal of labor.  

- Mark

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