Post by
EdBwoy »
https://forums.nicoclub.com/edbwoy-u213758.html
Tue Aug 11, 2015 9:59 pm
I have to read the manual to verify this, but yes the temperature sensor could throw a code if it is not in contact with a liquid.
I am not certain how the 06 m45 notifies you of an overheat condition, but my 03 had the gauge all the way to max then it also notifies you on the screen. Has your car overheated to that level or how are you noticing this?
Now that you've noticed the overheating with coolant consumption, it makes it easier to diagnose. Any leaks onto the ground/around hose clamps/onto the engine lower cover? Is the coolant reservoir either way below min or above max? White, sweet smelling smoke from the tailpipe?