hi i have a question about my car cx3 today while i was driving the temperature light came on and went off and after a while it went off again and all the way i was driving it didn't come on again ok what could be happening

 

Welcome to the forum.

Do a diagnostic scan ASAP and see which DTC are in pending and permanent files.
You can check your reservoir as well but defiantly the ECU.


BTW you are using the color font (color font) that may be very hard for some members to see and read .

 

I have check and I have P111A error

 

Well you have the service bulletin?

Check the coolant reservoir

But here what you can do. Check the coolant reservoir then proceed to properly clear the DTC CODE ONLY not the permanent file using only a scanner. Then go back into the ECU and check the I/M monitors. Make a current note of any DTC and permeant DTC these are 2 separate areas. Make note of which I/M monitors are not in green or state of readiness. Then start engine and tun the AC on MAX and verify that the fans are on. If fans are on turn off the AC and take a short drive and recheck all the area's again and make note of any additions or changes.

If everything is normal and the fans work, then you either had an anomalous event or the engine needs to cycle at least 1-3 times before another ECU check is needed.

If you don't want to do or can't do any of this then either go to Mazda or an ASE employed independent service shop and have them at least diagnosis your problem.

I would at least not to take any long trips before you have verified that this was an anomalous event.

 

I took the car to the mechanic, he said it was the thermostat, I paid 600 euros, I'm not so sure that's it, the ecu wouldn't have indicated an error

 

the following strange thing happens when you turn on the hot air, the right side blows hot, in the center a little hot, and in the driver's seat almost cold, the air conditioner is only closed by the engine air

 

Try in the future to not use a light colored font please for a general question or response. I could read it well on my cell had to boot up the computer and log on the forum to read and respond to you. LOL

Your mechanic should understand that had your cooling system have an overheating issue it would have via the coolant temperature sensor sent that information to the ECU which would have changed some operating perimeters of the engine to protect the engine as well should have generate the check engine light and a DTC(s) # to review a possible cause to check which may have been a failing or failed thermostat.

 

Sorry but I am back in the shop and on my cell phone cant read you other response... it to light a font used!!!!