Simon_CSK Posted December 20, 2021 Share Posted December 20, 2021 The air suspension pumps on D3/4 and Sports have three hose attachments. One 4mm one 10mm and one about 12mm. My thinking is the 4mm is the high pressure feed for the system, the 10mm is the air supply from the air dryer and the 12mm is the exhaust. am I correct or talking out of the back of my neck? (As usual before someone else says it) Quote Link to comment Share on other sites More sharing options...
bishbosh Posted December 20, 2021 Share Posted December 20, 2021 Don't know if it the same configuration as an L322, but the exhaust on an L322 is a conical brass filter screwed directly to the compressor itself. No pipework involved. Quote Link to comment Share on other sites More sharing options...
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