I can ALMOST feel the cold air after an extensive rebuild of my old R4 system. No power at the compressor with the pressure switch jumped so into the Klima box I went! I could smell the stink as I scraped off the silicone. Yup, she's cooked! 1985 300CD


Does anyone happen to know what this diode was so I can try replacing it and fixing the burnt tracer on the back???
I put better photos of this thing on benzworld in the W123 section on the AC clutch diode thread. That site is better for photos.

Many thanks!