I drove 30miles yesterday, and when arriving at the top of a multi story car park, my temp gauge was maxed out, and the engine was showing white smoke. Upon pulling over and checking the bonnet, I could see coolant overflowing from the overflow pipe in the bottle.
I let the car cool down for an hour and topped up the coolant. I checked the fans, and neither were working. I turned the AC on, and no fans came on (I thought a fan should come on at all times with AC?). I took it to the nearest Kwik Fit (ssshhhhh) who thought my AC may have been empty and causing the fans not to kick in, so they regassed it for me, still no AC, but they didn't charge me.
I've done the 10button door switch test (wipers/lights/fans) and they either don't spin at all, or one each randomly.
Today I've taken the car out, and as the temp increased again (at standstill after 20miles) the fans didn't kick in.
The symptoms:
1. No AC (but full with no leaks)
2. No fans
3. Overheating
The possibilities are (from my research online):
1. Thermostat (but would this cause the fans and AC not to spin?)
2. Fans, fan motors, fan clutch?
3. Head gasket (Kwik Fit checked for this, no sign of it, so highly doubtful)
4. Radiator
5. Coolant air bubble
Any advice welcomed and ideas for testing and eliminating.
Also, I'd like to say thanks to a fellow 350z owner who did stop and check I was ok.
A picture of mine for the rubber neckers