Search the ‘tubes for this. I believe you’ll have to remove the expansion valve to fully flush the system.
There are AC flush chemicals that you can use which will flash or dry out without contaminating the system. I’ve only done it once, when I completely rebuilt the AC system in my former 350SDL. It was messy, but I wanted it done as I seem to recall the compressor grenaded and I wanted to be sure everything was out of the system, especially since I had invested in a rather pricey double-pass condenser. -D > On May 21, 2022, at 10:03 AM, Floyd Thursby via Mercedes > <mercedes@okiebenz.com> wrote: > > I am putting the S550 back together, have all the parts. I reckon I should > flush the AC system before hooking the lines to the "new" condenser. I > vaguely recall someone doing that with gasoline or some other solvent. How > would this work? Run some gasoline/whatever into the lines where they > connect to the condenser then blow that through the input line with > compressed air? Lather rinse repeat? Then the same with the condenser? > Then close it up and put the vacuum pump on? I have a single-stage HF pump > that works well enough but will that be enough to pull it down enough? > > Then put in the oil and 134. Is there a list somewhere of how much the > system should take? WIS? Or maybe I can find it searching the intertubes. > > -- > --FT > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
