Volkswagen Front Wheel Drive 1974-1989 Repair Guide
REMOVAL & INSTALLATION
Properly discharge the air conditioning system using recovery/recycling equipment.
Disconnect the negative battery cable.
Unscrew the desired line from its adjoining component. If the lines are connected with flare nuts, use a back-up wrench when disassembling. Cover the exposed ends of the lines to minimize contamination.
Remove the lines and discard the O-rings.
Coat the O-rings with refrigerant oil and connect the refrigerant lines. Use a back-up wrench to tighten the fittings.
Evacuate and recharge the air conditioning system.