Replacing air-conditioning compressor
WARNING: This page is about a different car, the 2016 Porsche Macan and 2015 Porsche Macan. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Fill level too low
- Risk of damage to components.
→ Do not start the engine.
→ Do not tow the vehicle.
NOTE:
Too much or too little refrigerant oil in air conditioning circuit
- Reduced cooling output
- Lack of lubrication and failure of the air conditioning compressor
→ If a new air conditioning compressor or a component in the circuit is replaced, the oil quantity must be checked and adjusted.
Information
All connection points must be completely dirt-free.
The air-conditioning compressor must be dry (washing the vehicle) and the air-conditioning compressor and lines must be free of moisture.
The connection points must be closed after they have been opened. Use the original transport caps. A clean measuring cylinder with a capacity of approx. 300 ml is required.
Information
- If the air-conditioning compressor is blocked or seized up, then additional steps must be carried out to ensure that the air-conditioning system is working. See portion on Work steps for blocked or seized up air-conditioning compressor
Information
- New air-conditioning compressors are pressurized and filled with the total oil quantity required for the refrigerant circuit!
- The remaining oil quantity in the individual components must therefore be taken into account!
- Refrigerant oil from the compressor or refrigerant oil removed by suction from a previously run air-conditioning system may no longer be used (special-category waste)!
- Carefully open the cap on the high-pressure side and relieve the pressure from the air-conditioning compressor -A- .
- Open the oil filler screw -B-
on the air-conditioning compressor.
- Empty approx. 40 cm3 of refrigerant oil out of the air-conditioning compressor and into a measuring glass. The remaining quantity of oil (approx. 60 cm3) remains in the air-conditioning compressor.
- Always replace the sealing ring for the oil filler screw.
- Use fastening screws from the new air-conditioning compressor. Replace O-rings and coat new O-rings with refrigerant oil.