Components In Engine Compartment, Servicing

Heating & A/C Components In Engine Compartment, Servicing


CAUTION!
Before beginning repairs on the electrical system:
- Obtain the anti-theft radio security code.
- Switch the ignition off
- Disconnect the battery Ground (GND) strap.
- After reconnecting battery, re-code and check operation of anti-theft radio. Also check operation of clock and power windows according to Repair Manual and/or Owner's Manual.


NOTE: System components identified with an *must only be serviced or replaced after discharging refrigerant system. Use Kent Moore ACR4 or equivalent.







1 - Air intake duct
2 - Vacuum reservoir
- Where applicable
- Insert vacuum hose: 30 mm (13/16 in) into reservoir
3 - Heater core and vacuum hose guide at bulkhead
4 - Engine Coolant Two-way Vacuum Valve -N147-
5 - Evaporator drain pipe
6 - Relays Locations and wiring
7 - Individual fuses for coolant fan -S42- (2x)
8 - Coolant Fan Control (FC) series resistance -N39-
9 - Evaporator water drain valve
- Water leak at housing may result if valve blocked.
10 - Coolant valve
Function:
- Engine Off: Vacuum supply to coolant valve is controlled by engine coolant two-way vacuum valve -N147-. Valve allows coolant to circulate from engine to radiator when after run coolant Pump operates.
11 - Condenser*
12 - Pressure relief valve*
- Protects refrigerant circuit against over pressure
13 - A/C Pressure switch -F129-
- Removing and installing:
- Tightening torque 8 Nm
- Replace 0 ring (note Part No.).
14 - A/C Cut-out Thermal Switch -F163- and Third Speed Coolant Fan Control (FC) Thermal Switch -F165-
- In engine compartment, front
Function:
- -F165-switches-on coolant fan 3rd speed (on at 112 °C / 234 °F, off at 108 °C / 226 °F).
- -F163- switches off N25- at excessive coolant temperatures (off at 119 °C / 246 °F, on at 112 °C / 234 °F).
15 - A/C Clutch -N25-*
16 - Receiver drier*
17 - Service valves*
18 - Expansion valve*
- Opening at bulkhead must be sealed to prevent water ingress