Refrigerant Circuit Repairs
WARNING: This page is about a different car, the 2007 Volkswagen Touareg, 2006 Volkswagen Touareg, 2005 Volkswagen Touareg, and 2004 Volkswagen Touareg. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
There is a danger of ice-up.
Refrigerant leaks out if refrigerant circuit is not discharged.
Refrigerant must be extracted before opening the refrigerant circuit. If the refrigerant circuit is not opened within 10 minutes after extracting it, pressure may build up in the circuit again. The refrigerant must be extracted again.
NOTE:
- Flush the refrigerant circuit with R134a refrigerant under the following conditions:
- In the event of dirt or other contamination in the refrigerant circuit.
- If vacuum reading is not maintained on evacuating a leak-free refrigerant circuit pressure build-up due to moisture in refrigerant circuit.
- If refrigerant circuit has been left open for longer than normal. For an example following an accident.
- If pressure and temperature measurements in the refrigerant circuit indicate the likelihood of moisture
- In the event of doubt about the amount of refrigerant oil in the circuit.
- The A/C compressor had to be replaced on account of internal damage like noise or no output.
The procedure for flushing with R134a refrigerant is described in Refrigerant Circuit and Components in General InformationGeneral, Technical Data .
Information for repairing vehicles with air conditioning and working with refrigerant can be found in General, Technical Data .
Information for special tools and equipment when repairing vehicles with air conditioning can be found in Special Tools .