1993 190E, 2.3. Started running hotter than normal, only the aux fan was working. I replaced the mag. fan clutch, still no main fan. I think I have found the temp sensor that controls this fan on the internet but I don't know where it resides on the engine. There are three temp sensor/switch looking suspects on top of the thermostat housing. Is it one of these?

Where exactly is the tempsensor/mag. fan clutch swith on this car?

Thanks a bunch from a new member.

Paul A.