Owner of a 94 E420: Since I have owned it (about a month), the inside temperature gauge was quite accurate to the outside air temp. If it was 92 outside it was 92 on the gauge, pretty accurate. However, today it is 80 degrees outside and it is registering 103 degrees probably from the engine heat where the sensor is located. So does anyone know if it is related to a fuse or a bad sensor or where it located to, etc....?Any advice would be appreciated.

 

Was it when you were sitting still or while driving ?