I'm in the process of ripping out all the automatic climate control parts in my 1980 W116 300SD and converting to a manual system. I was getting ready to pull out the ambient air sensor, which is mounted on the firewall, when I had an interesting thought--can I use this sensor connected to a thermometer that mounts in the instrument panel of a W124/W126, which I would install in the blank space in the panel just above the steering column?


I know people have made W124/W126 thermometers fit in their W116/W123 instrument panels, but instead of using the bumper-mounted sensors, I wonder if the sensor on the firewall would work if I wired it to the thermometer.

My reason for asking is the sensor and wiring are already there, so it would be nice to utilize it if the sensor will communicate with the thermometer I wish to install in my instrument panel. Afterall, it's entertaining to see how hot the outside temperature is in Arizona.

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1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Highly Optioned, 350,000+ Miles