Did your Klima relay work prior to this project? If so, send the signal through the OE compressor wire to the Klima and bridge the pins of the OE evaporator temp sensor.

Sixto
87 300D

I have no idea if it worked or not... I have never experienced a seized compressor. Anyway, I don't have use for the KLIMA relay anymore 'coz the compressor they installed doesn't have a speed sensor... its a 17c instead of a 15c... had to use a slightly longer belt.

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85 190E 2.3(SOLD)
86 230E (-->300D) sold
87 300D (-->300TD) sold
68 250S w/ a 615 and manual tranny (RIP)
87 300TD (SOLD)
95 S280 "The KRAKEN" (Turbo 2.9 602 transplant) traded
86 190E 2.3... current project