Could use some help identifying Aux Fan switches/sensors

[IdahoMauleMan]

Hi Guys,

My aux fan doesn't come on and I'd like to go through the usual battery of tests.

I'm especially dense this morning, because I can't seem to find the pressure switch from the A/C circuit. And while I'm posting here, I thought I'd ask for ID on the coolant sensor as well.

Pictures are attached below. Downward looking on the front left, right and a close up of the sensors at the top of the radiator hose.

Would appreciate any help!

[rowdie]

Looks like a 107, 560SL. AC switches are on the receiver/drier. There is also a resistor mounted in the same area. That is a coolant sensor attached to the thermostat housing. Did you check the manual? Model 107

[IdahoMauleMan]

Originally Posted by rowdie

Looks like a 107, 560SL. AC switches are on the receiver/drier. There is also a resistor mounted in the same area. That is a coolant sensor attached to the thermostat housing. Did you check the manual? Model 107

Thanks Rowdie. I'll page through this and report back after I give it a whirl.

[IdahoMauleMan]

Originally Posted by rowdie

Looks like a 107, 560SL. AC switches are on the receiver/drier. There is also a resistor mounted in the same area. That is a coolant sensor attached to the thermostat housing. Did you check the manual? Model 107

Hi Rowdie,

I still can't find the thing. It is indeed a 1986 560SL. Can you help me identify where, exactly the switch is located?