Re: [MBZ] 85 300D monovalve

You sure you didn't blow the wiring to yours? With the ACC set to OFF, there should be 12V on the plug to the monovalve. It should be strong enough to light a lamp, etc. -- Jim ___ http://www.okiebenz.com To search list archives

Re: [MBZ] 85 300D monovalve

Hi Andrew, I finally installed the solenoid you sent me. Unfortunately it is non functional. After installing and seeing no change in in my heating issue, I took it back out and tried to activate using 12 volts from my battery to the connector posts on the solenoid and there was no response.

Re: [MBZ] 85 300D monovalve

> Michael wrote: > The latest symptoms are good heat at belowq 2000 RPM’s but then > heat would cut out completely at any thing over 2000. Classic symptoms of damaged diaphragm in the monovalve. ___ http://www.okiebenz.com To search list archives

Re: [MBZ] 85 300D monovalve

That's pretty heinous. Could there have been galvanic action driven by the botched wiring to the solenoid? -- Jim ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to:

Re: [MBZ] 85 300D monovalve

I wondered about the fluid as well. I’ll have it tested tomorrow. It is the right color but I don’t remember if I have ever changed it in this car. The odd thing is that I did not see this build up 2 weeks earlier when I had the part out to check for holes in the diaphragm. Michael E.

Re: [MBZ] 85 300D monovalve

Cooper sulfate. Corrosion from copper or brass. Do you have good Go5 in the radiator at the proper ratio? Michael Esh via Mercedes February 1, 2018 at 5:04 PM I just replaced the damaged mono valve on the car. The one I just took out has a blue/green crusty