2005 Mercedes C-Class Owner's Manual - Page 403

Technical terms Instrument cluster The displays and indicator/warning lamps in the driver's field of vision, including the tachometer, speedometer, engine temperature display and fuel gauge. Kickdown Depressing the accelerator past the point of resistance shifts the transmission down to the lowest possible gear. This very quickly accelerates the vehicle and should not be used for normal acceleration needs. Lock button Button on the door which indicates whether the door is locked or unlocked. Pushing the lock button down on an individual door from inside will lock that door. Maintenance System (U.S. vehicles) Maintenance service indicator in the multifunction display that informs the driver when the next vehicle maintenance service is due. The Maintenance System in your vehicle tracks distance driven and the time elapsed since your last maintenance service, and calls for the next maintenance service accordingly. Memory function* Used to store three individual seat, steering wheel and mirror positions for each SmartKey. MON (Motor Octane Number) The Motor Octane Number for gasoline as determined by a standardized method. It is an indication of a gasoline's ability to resist undesired detonation (knocking). The average of both the MON (Motor Octane Number) and ->RON (Research Octane Number) is posted at the pump, also known as ANTI-KNOCK INDEX. Multifunction display Display field in the instrument cluster used to present information provided by the control system. Multifunction steering wheel Steering wheel with buttons for operating the control system. Overspeed range Engine speeds within the red marking of the tachometer dial. Avoid this engine speed range, as it may result in serious engine damage that is not covered by the Mercedes-Benz Limited Warranty. Poly-V-belt drive Drives engine-components (alternator, AC compressor, etc.) from the engine. 401