Hi, I recently bought a c class I was hoping someone can tell me about how to fix or what i should do about the temperature reading fluxuating. The temperature reading will go from -5 degrees to 185 degrees when the car is running, and usually stay at 185 degrees. =/ I heard from a friend it is not plugged in. (possibly to the thermometer) If anyknow knows where this is or how I could fix it please let me know Thanks.. newbie needs help.