A/C and heating system components, engine compartment
WARNING: This page does not describe the selected car, but rather 27 other vehicles, including the 2002 Volkswagen Cabrio, 2001 Volkswagen Cabrio, 2000 Volkswagen Cabrio, 1999 Volkswagen Jetta, and 1999 Volkswagen Golf. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Parts marked with an asterisk (*) can be serviced only after the A/C refrigerant system has been discharged by a certified technician using EPA-approved refrigerant recovery and recycling equipment, refer to A/C REFRIGERANT SYSTEM (R-134A), SAFETY MEASURES .
The following list pertains to Fig 1.
- Dust and pollen filter
- Where applicable
- Plenum cover
- Removing/installing, refer to Heating and ventilation system, component list
- Evaporator water drain valve
- Located behind bulkhead insulation
- Removing/installing, refer to Removing and installing evaporator water drain valve
- Heater core connections and vacuum hose guide
- Fresh air/recirculating flap two-way valve -N63-
- Valve open when voltage applied
- Vacuum hose layout, refer to VACUUM HOSE LAYOUT
- Coolant Fan Control (FC) control module -J293-
- With fuse -S88- (1993 m.y.)
- With fuses -S107- and -S108- (1994 m.y.)
Connector terminal identification:
- Vacuum reservoir
- Insert vacuum hose 30 mm (1.2 in.) into reservoir
- Removing/installing, refer to Removing and installing vacuum reservoir
- Vacuum hose
- Vacuum hose layout, refer to VACUUM HOSE LAYOUT
- A/C thermal switch -F163- and third speed coolant Fan Control (FC) thermal switch -F165-
- A/C thermal switch -F163- only on vehicles with engine codes AAA, AAZ, ABA, ACC
- F163 switches A/C clutch -N25- off at high engine coolant temperature; OFF (switch open) above 119 °C (246 °F); ON (switch closed) below 112 °C (234 °F)
- Third speed coolant fan control thermal switch -F165- only on vehicles with 3-speed coolant fan motor
- F165 switches radiator coolant fan to 3rd speed as engine coolant temperature increases; 3rd speed ON (switch closed) above 112 °C (234 °F); OFF (switch open) below 108 °C (226 °F)
- Removing and installing (engine code AAA), refer to Removing and installing A/C thermal switch -F163- and third speed coolant Fan Control (FC) thermal switch -F165- (2.8 liter VR6 engine code AAA)
- Removing and installing (engine code ABA), refer to Removing and installing A/C cut-out thermal switch -F163- (2.0 liter engine code ABA)
- Condenser*
- Pressure relief valve*
- Checking, refer to Checking:
- A/C clutch -N25-*
- Ambient temperature switch -F38-
- Switches A/C clutch -N25- OFF when outside temperature is too low
- Switch opens (compressor OFF): below 2 °C (36 °F)
- Switch closes (compressor ON): above 7 °C (45 °F)
- Installation location (07.95), refer to Installation location of ambient temperature switch -F38- (up to 07.95)
- Installation location (08.95), refer to Installation location of ambient temperature switch -F38- (08.95 and up)
- A/C pressure switch -F129-
- Checking, refer to Functions
- 8 N.m (71 in. lb)
- Always replace O-ring seal (note Part No.)
- Receiver drier*
- Sight glass*
- Not applicable to all vehicles
- High and low-pressure service valves*
- Expansion valve*
- Insulator, installing and checking, refer to Installing and checking expansion valve insulator