AC Temp Switch

No, this is for under the hood up by the radiator on some models, mine does not have this.
 
I would think it is for a 74 with the radiator temp sensor for aux fan, it's a relay and has off/on 100/105C on it. Funny that Real OEM lists for All coupes and e3.
 
It shares the temp gauge sensor at the t-stat housing.
 
But the temp sensor in the lower right of the 74 radiator simply closes the circuit when hot and activates the aux fan.
 
I think mine has it, and once it even came on when idling on a hot day.
 
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