Because Mercedes have really lousy electronics. I had a friend with the same vehicle and the thing was always in the shop because the electronics in it kept malfunctioning. The service techs said that the "Non-Essential" Electronics (radios, temp, gps, alarm, etc) in them are terrible and malfunction all the time.
I doubt if it can be reset. Probably a sensor fault if it is reading incorrectly.
my outside temp diplay is inop
Generally speaking the outside air temperature sensor it only used for the dashboard display. There may well be a temp sensor for the fuel-injection system, but it is generally not the same one as used by the display. So while there is a fault if it is reading incorrectly, the fault is no more serious than if the clock was giving the wrong time.
marioliberatore777@hotmail.com
REPLACE THE OUTSIDE SENSOR.THE OUTSIDE TEMP. SHOULD SHOW ALL THE TIME,INSIDE ONLY WHEN INSIDE CONTROLE IS MOVED..........
Behind the front lisc plate.
Temperature display is standard on all models. Most probably, your temp sensor is faulty
The outside temperature sensor on a 2003 Altima is located just behind the front bumper. it is on the passenger side of the vehicle in the undercarriage.
The temperature sensor is usually located on the front windshield of the car, in front of the rearview mirror
The outside temperature sensor is indicating a temperature where the formation of ice on the road is possible.The outside temperature sensor is indicating a temperature where the formation of ice on the road is possible.
The outside air temperature sensor is on the front of the car, near the nearside foglight on the plastic grill. It looks like the end of a Hilti nail.
The outside temperature sensor is on the driver's side next to the fog light (or where the foglight would be). It looks like a black pencil tip sticking out of a little hole in the black plastic.