Blower and Aux. Fan always on

[demos70]

1981 316 with AirCondition. The blower's always running on lowest speed, and the aux. fan is always on.
I checked diagrams there's a "cooling control" and a "cooling relay" where are these in the car ?

[demos70]

Ok it was the temperature switch (1367652). Ancient design...someone had tampered with the copper contact, bent it so it'd always be closed giving 12v from GN/BR wire to SW/WS black/white wire.
In ETM diagram it's called "Cooling Control".
The Black/White wire fed the relay (Cooling Relay in diagram) which made it to always click as soon as KL15 was on.
Everything's fine now. Off to charge with freon. Hope things go smooth, don't wanna waste more time or $ on this car.