Refrigerant Oil Properties

WARNING: This page is about a different car, the 2014 Volkswagen Touareg, 2013 Volkswagen Touareg, 2012 Volkswagen Touareg, and 2011 Volkswagen Touareg. However, it is still accessible from the selected car via links, so may be relevant.

The most important properties are the high degree of solubility with refrigerant, good lubrication, no acid content and very minimal water content. For these reasons, only certain oils may be used. A list of approved refrigerant oils and capacities can be found in the vehicle-specific Service Information. Refer to MAINTENANCE (FLUID CAPACITY TABLES), DIAGNOSIS (2011) / MAINTENANCE (FLUID CAPACITY TABLES), DIAGNOSIS (2012) / MAINTENANCE (FLUID CAPACITY TABLES), DIAGNOSIS (2013) / MAINTENANCE (FLUID CAPACITY TABLES), DIAGNOSIS (2014) .

PAG oils, which are appropriate for refrigerant R134a, are highly hygroscopic and do not mix with other oils. Opened containers should therefore be closed again immediately to prevent ingress of moisture. Moisture and acids promote aging of refrigerant oil, causing it to become dark and viscous as well as corrosive towards metals.

NOTE:

Only use oils approved for the A/C compressor in refrigerant circuits with refrigerant R134a. Refer to MAINTENANCE (FLUID CAPACITY TABLES), DIAGNOSIS (2011) / MAINTENANCE (FLUID CAPACITY TABLES), DIAGNOSIS (2012) / MAINTENANCE (FLUID CAPACITY TABLES), DIAGNOSIS (2013) / MAINTENANCE (FLUID CAPACITY TABLES), DIAGNOSIS (2014) .

Used oil disposal: Volkswagen InfoNet; Operations; Handbooks & Dealer Literature; Service Handbook; 15. Environment Protection; follow the link "Environment Protection in Market- and Service Operations" under general information; 4. Waste Management; 6. Methods of Disposal; g. Disposing of Refrigerant Oil