Yup. If the foam bypass tube has deteriorated (broken down to dust and now missing) between the air box and the thermistor in the dash, a piece of 1/2" black foam pipe insulation will replace it perfectly and you'll even have enough left over to use in another 20 years.
The easiest way to see is by taking out the glove box and looking up at the bottom of the dash pad. You can also use the "tissue test", which entails the use of a small square of tissue that you place over the grille that covers the thermistor in the dash while the system is running. There should be a very tiny bit of resistance when you remove the tissue caused by the air being drawn in through the grille. This works especially well in 124 chassis cars that have the little "helper" blower at the base of the passenger side A pillar. The 124 grille is on the ceiling in the cluster of stuff containing the map lights and sunroof switches. Dan On Aug 11, 2012, at 9:58 PM, WILTON wrote: > A $2 repair? > > Wilton > > ----- Original Message ----- From: "Max Dillon" <meadedil...@bellsouth.net> > To: "Mercedes Discussion List" <mercedes@okiebenz.com> > Sent: Saturday, August 11, 2012 9:55 PM > Subject: Re: [MBZ] 1985 300CD Klima relay - where is it? > > >> Classic symptoms of a deteriorated foam tube under the dash, which can be >> replaced with similar tube from hardware store. >> -- >> Max Dillon >> Charleston SC >> '95 E300 >> '87 300TD >> >> andrew strasfogel <astrasfo...@gmail.com> wrote: >> >> SWMBO's 1985 300CD AC has started to behave erratically, blowing hot >> air one minute and cold the next. I checked the monovalve (perfect) >> and swapped in another ACC push button module. Nothing changed. >> What's odd is that the ACC seems to be "hunting" wile operating, >> clicking the compressor on and off and cycling hot and cold air. >> Could this be the klima relay? The par number is 001-545-74-05. I >> have two 1985 turbodiesels so could swap one out to test but I looked >> under the hood and didn't see it. Where is it located? >> >> _____________________________________________ >> >> 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://mail.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://mail.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://mail.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://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
