Attention! The air conditioning system is constantly under high pressure. Never disconnect refrigeration lines or remove any system components without first discharging the system. The discharge of the air conditioning system must be carried out by an experienced specialist in a car service workshop. Always wear safety goggles when disconnecting refrigerant lines!
Note. The A/C compressor is not among the components subject to refurbishment and, in case of failure, must be replaced in tandem with the receiver-drier.
1. Discharge the air conditioning system in a specialized workshop.
2. Disconnect the negative cable from the battery.
Attention! If the stereo system installed in the car is equipped with a security code, before disconnecting the battery, make sure that you have the correct combination to activate the audio system!
3. Set the parking brake and chock the rear wheels. Jack up the front of the car and place it on jack stands.
4. Remove the drive belt (see chapter Current service).
5. Remove the steering pump (see chapter Suspension and steering).
6. If equipped, remove the speed control actuator (tempostat).
7. Disconnect the refrigeration lines from the compressor (see accompanying illustration). Seal open ends of tubing and fittings immediately to prevent dirt from entering the system.
8. Disconnect the electrical wiring from the compressor clutch.
9. Screw off the compressor (see accompanying illustration) from the support bracket and remove it from the vehicle.
10. The clutch must be transferred to the new compressor.
11. The calculation of the amount of refrigerant required to fill the volume of a new compressor is as follows:
- a) Drain the refrigerant oil from the compressor removed from the car into a measuring container through the suction fitting;
- b) Subtract the measurement result from the value of 120 ml;
- c) The amount of refrigerant obtained as a result of subtraction should be poured into a new compressor.
12. The rest of the installation is carried out in the reverse order of dismantling.
13. Have the system charged in a specialized workshop.