Golf L4-1781cc 1.8L SOHC (RV) (1990)
Heater Core Case: Service and Repair
With A/C
Heater Case Removal and Installation
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Drain the cooling system.
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Disconnect the negative (-) terminal from the battery.
CAUTION: Automotive refrigerant containing CFC's is hazardous to the earth's atmosphere. To protect our environment, use an Underwriter's
Laboratory (UL) approved refrigerant recovery/recycling unit such as Kent-Moore ACR3, or equivalent, whenever discharging an A/C system.
NOTE: Characters in ( ) denote applicable points in the image.
(1) Evaporator
(2) Expansion valve
(3) Sight glass
(4) Receiver/drier replace if system is contaminated or system has been open for several hours
(5) Pressure relief valve
(6) Condenser
(7) High pressure switch