Hi everyone - I was wondering if any of you can shed some light on my situation.

Yesterday, I was driving my g37s for about 30 minutes with normal driving and some fast acceleration here and there (:P). When I got home in the evening I noticed my feet feeling quite hot. I opened the engine up and the engine seemed really hot so I left it to cool down. An hour later it still felt hot to the touch (so hot I couldn't even put my finger on the metal). the car was driving perfectly all day as well.

The temperature gage was right in the middle as well. I also did not turn on the air conditioning at all that day (kept windows open). As well, yesterday and today have been extremely hot in Toronto. Feeling like 40 degrees Celsius or about 100 fahrenheit.

I took the car out this morning to somewhere up the street and within 1 minute the temperature creeped up again to about the middle. Car was driving and sounded perfectly fine. When I got home, I opened the hood and the engine felt pretty hot again (I only drove it today for 5 minutes). My only confusion though is why the fans didn't come on to cool the engine. Or do they not come on when the gage is half between hot and cold. Do they come on when I turn the air conditioning on?

It might also be worth mentioning that this past sunday I lightly cleaned my engine bay. Carefully with a cloth and degreaser nothing else. I also, for the first time, turned off the VDC yesterday when driving my car (I was curious to see what it would drive like).

I'm not exactly the biggest car tech person so any help to ease my worries would be fine. I have a feeling I'm just being paranoid, but I just want to know why that fan didn't turn on. It seemed hot enough for the fan to go on, but who knows...

Thank you!!

MOVED TO G37S Thread.

 

If your temp gauge is not indicating the car is overheating I wouldnt worry about it. If I am not mistaken the fans will not come on if the car is off.

The engine does seem to retain heat. I can park at 6pm and go back into my garage at 11pm and have the sensation of a space heater towards the front grill.

 

Check the coolant level in the reservoir when the car is both cold and hot. It should fluctuate some and be within the lines. If it's not at the cold mark when cold, add enough to bring it up to level.

The car does warm up pretty fast, especially when ambient temperature is 70F+.

Sounds like normal operation to me.