A/C Compressor made by Sanden for 2005-2006 MkV Jetta TDI and 2009+ Jetta TDI, Golf TDI and Sportwagen TDI as well as the 2012-2014 NMS Passat and 2012+ Beetle TDI, the OEM supplier.
Refrigerant oil is installed in Sanden compressors at the factory. Check the compressor label for the type and amount of oil.