I bought a 156 few weeks ago and on the second day noticed that the cooling fans (radiator) don't kick in at all. I read many guides of how to test the system but still haven't figured what's the deal. Here is what i've been noticing.
- Fans don't kick in at any temperature (eventually shoots coolant out and boils), neither the low-speed or high-speed.
- Fan motor actually works when tested (either giving it 12V or engaging it's relay)
- Taking temp sensor off does nothing (should kick in the fan?)
- Uniting fan resistor's leads does nothing
- temp sensor and resistor was replaced
- All relays and fuses have been tested
One mystery fact is that the car has console from A/C-car, but has no climate control. I found one plug loose one the engine bay, next to radiator, which i'm suspecting to be some sort of connector to ac. Weird thing is that there are no traces of the car ever having ac, no mounting marks, no pipes, no air con radiator or compressors, nothing. just the console and fuses.
Question is, if there has been climate control, does removing it disable the cooling fan in some sort of way? Also fun fact is that my console thermometer shows 132 celcius, but the engine isn't boiling yet (sensor is new, so the dial must be broken).
I made a temporary solution and grounded the relay to battery so that the fan runs full speed all the time.