It seems air conditioning problems are unfortunately fairly common in Volkswagen Passats. Many owners find themselves in the repair shops of the dealers during hot summer months trying to get the problem fixed. Save some time and money by trying to diagnose the problem yourself before making a trip to the dealer.
Tools Used: Tools, Screwdriver, Replacement fuse
Troubleshoot Air Conditioning
Listen for the blower fan to make sure it is working. With the engine on, turn on the air and adjust the pressure. The normal accompanying sound indicates the blower fan is working properly.
Remove the blower fan in a VW Passat by unscrewing the footwell panel on the passenger side, removing it, unscrewing the blower fan and then unplugging the electricity to it. There is only one small cable running to the blower fan which transmits the electricity.