If the previous compressor had an internal failure, then replacing should include replacing the filter/dryer and the expansion valve. A clog in either can result in destruction of the new one. Also the system should be cleaned out. The rebuild will usually have a tag indication if there is any lubricant in it and what type. There different R134a lubricants used. The total quantity required is determined by the vehicle. You will need to look that up. R134a systems are best filled by volume. Do not rely solely on pressure gauge reading to determine charge capacity. Dennis -----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Jim Felder Sent: Friday, November 19, 2010 9:58 PM To: vanagon@GERRY.VANAGON.COM Subject: Friday question--AC compressor installation This weekend I will putting a rebuilt AC compressor in my Jetta Eco-Diesel. Do I need to put lubricant into the compressor before I put the refrigerant in, and if so, how much? Thanks, Jim |
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