I have a low opinion of pep boys, they busted an intank fuel pump on a 740 once and wanted it to be spareparts warranty, they busted it putting it in ( a hammer isn't always the best tool to use).. As for the compressor, I have seen a few go south on s80's. There is a recall on the electric fans on the s80's (99's) for sure. Its called recall 110, have the service dept. run the vin# on the volvo warranty system. they need the last six of the VIN# and the model type on your car is (184). Not all service guys do this, parts guys will sometimes do this if they have the time.