Posted By RichC on June 14, 2013
Any advice or thoughts would be appreciated (video/audio below). I’ve installed a new AC system (compressor, r/d & expansion valve) in my 1982 Mercedes Benz 300D Turbodiesel after a thorough cleaning and proper charge, but occasionally there is a clatter-rattle when at idle. The AC seems to be cooling just fine and I think the correct amount of PAG oil is in the system. It does seem that after it has been running for a while the noise goes away? What is it and is there a fix?