Temp reading on 2012 Mustang radio reads 50 degrees - ALWAYS. How can I fix this?

I take help from online websites that have this service like helping in repair some like reliable-store have instant help.. others are a bit slow which I do n't prefer... rest is up to u.. U can try

How pathetic what do you expect in 50C wonder it didnt cook itself to death running a engine in 50 degrees celtigrade ambiante air temperature

may be faulty temp sensor ,,,,, or dust gathering on it giving false reading ,,,, you need to get a diagnostic reading to check internal temp readings and see if they are too low for the real temp of your area

A thermostat should only allow flow after reaching its desired temp, 195, however, if this is just idling and you have a brand new aluminum 4 core radiator then it may really not be reaching temp and reading low because of no load and a great radiator. I assume top of the intake manifold is where your temp sender is? Did you use a laser infra red temp reader and point it at the block in several spots? You may see175, 185, etc all over the side of the eng. The neck of the thermostat housing should be the closest to 195 but the lower hose might read 140 / 150. Alum radiators work awesome so when that thermostat does open it's a rush of cooler coolant. What is it doing when you drive steadily @ 40 - 50 mph? If the gauge reads say 140 and just fluctuates slightly from that then I would say yes, replace the thermostat. If your gauge shows it now reaching temperature then it's just that your radiator is doing a helluva job when it idles. BTW, electric fans? On a switch or temp sender? Or mechanical fan always pulling air even at idle?
Hope this helps

Ambient air temp sensor could be the cause. Normally located in front grille area.

That is why the A/C clutch is not coming on.If the temp is below 50 degrees the auto control will not allow the compressor to kick in to protect the compressor.You have to check the codes for the body control module.It should show a code for the outside temp sensor.You could have a bad sensor or wiring.If you disconnect it it should show -40 degrees.check wiring and connections.Hope this helps.Good luck.

On the 05 Mustang instrument clusters this is a common problem, it's caused by failing stepper motors on the cluster's circuit board. It can be fixed though, check out this page for more on how to get it repaired - 05 mustang instrument cluster repair

Mine is doing the same thing. Did you find a solution

You will find the ambient temperature sensor behind the grille and in front of the condensor. The grille will have to be removed to replace the sensor.

The needle on the dash gage can be pulled off and slipped back onto the stem of the gage. First get an accurate temp gage to be sure what the engine temp is operating at. Then remove the face of the dash gages and remove the needle and place it back onto the stem to reflect the current correct engine temp and you should be good.