Peter - Funny you mention temperature sensor - I have one loose in the intake area for which I cannot find the correct location. Windshield was recently replaced, but whoever replaced the windshield prior to me screwed up all the rain gutters and seals at the bottom of the windshield (as well as doing other damage which turned a $300 replacement into a $800 replacement due to required rust remediation). Last night I finally had time to install the new seals/gutters (Thanks Rusty!) and noticed this sensor again. I really need to dig into the manual and figure out where it's supposed to go, right now it's simply placed on top if the intake filter.
Applying 12v makes the monovalve go to the full hot position, right? I also remember reading that the insert can leak, and pulling it out for a visual inspection should reveal the problem if present. -Max -----Original Message----- From: mercedes-boun...@okiebenz.com [mailto:mercedes-boun...@okiebenz.com] On Behalf Of Peter Frederick Sent: Wednesday, September 29, 2010 10:36 AM To: Mercedes Discussion List Subject: Re: [MBZ] AC diagnosis - cause of AC fade-out? That or a bad temp sensor, or loose connection. Verify that the cabin temp suction fan is working, and that the monovalve is holding. My Mom's TE is doing this, I plan to re-solder the PBCU connectors soon to see if I can fix it, everything else is good. Peter -----Original Message----- >From: "Dillon, Meade M CIV SPAWARSYSCEN-ATLANTIC, > 53310" <meade.m.dil...@navy.mil> >Sent: Sep 29, 2010 6:50 AM >To: Mercedes Discussion List <mercedes@okiebenz.com> >Subject: [MBZ] AC diagnosis - cause of AC fade-out? > >On my '95 E300, the AC starts out strong, but after about 20 minutes it >is noticeably weaker and eventually it fades completely away (goes from >very cold to cold to sort-of-cold to ambient). AC compressor clutch is >staying engaged. > >Could this be a leaking monovalve insert? Next time I can play, I'll >see if the refrigerant lines are still cold. > >Very respectfully, >/s/ >Max Dillon >'87 300TD 329k miles >'95 E300 275k miles (On the Road!) >'73 Balboa 20 >Charleston SC > > > >_______________________________________ >http://www.okiebenz.com >For new and used parts go to www.okiebenz.com To search list archives >http://www.okiebenz.com/archive/ > >To Unsubscribe or change delivery options go to: >http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
