2008 Mercedes C-Class Owner's Manual - Page 151

Controls in detail Instrument cluster The outside temperature sensor is located in the front bumper area. Due to its location, the sensor can be affected by road or engine heat during idling or slow driving. Therefore, the accuracy of the displayed temperature can only be verified by comparison to a thermometer placed next to the sensor, not by comparison to external displays (e.g. bank signs, etc.). When moving the vehicle into colder ambient temperatures (e.g. when leaving your garage), you will notice a delay before the lower temperature is displayed. A delay also occurs when ambient temperatures rise. This prevents inaccurate temperature indications caused by heat radiated from the engine during idling or slow driving. Fuel gauge The fuel gauge is on the left-hand side of the instrument cluster ( page 26). Once the fuel level has fallen below the reserve mark, the yellow fuel tank reserve warning lamp 4 for the fuel reserve comes on ( page 380). 150