It cooling off when you're at speed , you need a new Monovalve .
I you hunt around , you can find just the center part that goes bad , about $50.00 IIRC .
W-126's in junkyards are loaded with them brandy new , look for the metal button on top to be cleaner than anything else under the hood .
No need to drain coolant , just carefully remove the four screws and lift the guts out , look in side the valve body , if any crud or whiteish residue wipe it clean with a clean rag , when you're installing the new guts , pay close attention to the alignment of the barrel shaped part to the cover - it has a locating tit .
-Nate
Bogy wrote:
>
> Hey all:
>
> Anyone know where I can find a wiring diagram for my 81 wagon? It's not the Klima/monovalve type. The floor deflectors aren't working and it cools off when the engine is revving. I have lot's of spare parts from parts cars. But no information.
>
> TIA,
> Bogy.
>
[diesel_mercedes] Re: Klima II HVAC Fun (?)
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