I'm looking into buying a '95 850 Turbo Sedan. The only problem with the vehicle is that the AC doesn't blow cold air. I have been reading around a little bit and found this on the 850 Series info, "Evaporator for the AC System cracks. Replacement requires complete dash tear down. New at dealer is approx. $1000-$1500." Could this be the source of the problem or does the system need to be recharged?<p>Thanks.