Brian, attaching the two photos re: the Klima question.

Attached Thumbnails

   

#1 is the Klima.

What is the question?

Brian, the compressor clutch on my ‘87 300 SDL is not kicking in so I’m trying to trouble shoot it, thus my questions regarding the test procedure you outlined under this thread for baraboom.

1. Does the top of the Klima just lift off or are there release clips?

2. Am I safe on my “87 300 SDL to follow the same test instructions you provided to baraboom re his W124?

thanks
Bill

1. The Klima is a self-contained group of relays with pins on the bottom. It just unplugs.......but, you'll need a good grip.

2. Yes, the procedure is the same. Report back with results and take care to understand if you are measuring voltage or continuity.

Thanks Brian. I will report back.

BTW I also should have asked if you can identify for future info two other parts that were shown in photos #1 & #2? In #1 what is red topped relay alongside of Klima and in #2 what is that part that arrow is pointing at?

Thanks
Bill

The red topped relay is the overvoltage protection relay.

I'm not sure of what #2 is pointing at...........

Since we getting much needed rain here in FL it will probably be tomorrow before I can continue to diagnose my no clutch engagement problem in my ‘87 300 SDL. However I do have a question relative to proper AC clutch operation.

Understand the clutch on the Mercedes is suppose to constantly engage/disengage (suppose to hear clicking) based on various factors/demands and when disengaged, that front, outermost ring stops spinning? I also have an ’86 in which the air doesn’t work either but unlike the ‘87, when I start the engine, without having the air control turned on, that outer clutch ring rotates (it’s always spinning). If I then turn on the air, there is no change, the outer ring still spins, without any clicking, and I don’t get any cool air.

Will appreciate comments.
Bill