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PSE line vacuum test

261 Views 2 Replies 2 Participants Last post by  RadoBenz77
Anyone find a good post on testing the PSE lines with a vacuum pump ? I’ve found a lot of posts but none showing the hows. Not sure if I have a bad replaced unit as it’s dated 2000 and I have a 2005 . Motor pump works fine , blade fins are fine . Pressure about 40 psi coming from the pump itself .
Thinking I’ve got bad internals on the unit or blown lines to the PSE features .
Thanks !
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2000 S430, 2000 S500, 2003 S600 TT, 2005 E320 CDI, 2006 S500 4Matic, and 2006 S350
7,724 Posts
I use a smoke tester on each of the lines, specifically this one, since it's so affordable.

Economy Series
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