Part Type: HVAC Blend Door Actuator. HVAC Air Door Actuator. 2006 Volkswagen Passat Excludes cars with option code 9AK (CFC free A/C system); for Cabin Air Recirculation;. 2007 Volkswagen Passat Excludes cars with option code 9AK (CFC free A/C system); for Cabin Air Recirculation;.