2006 Mercedes S-Class Owner's Manual - Page 449

Technical terms Program mode selector switch Used to switch the automatic transmission between standard operation S and comfort operation C. S55 AMG and S65 AMG with steering wheel gearshift control and manual shift program: in addition to S and C (see above), you can use M for manual operation. PSI (Pounds per square inch) ( page 324) Recommended tire inflation pressure ( page 324) REST (Residual engine heat utilization) Feature that uses the engine heat stored in the coolant to heat the vehicle interior for a short time after the engine has been turned off. Restraint systems Seat belts, belt tensioners, air bags and child restraint systems. As independent systems, their protective functions complement one another. Rim ( page 324) RON (Research Octane Number) The Research 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. Shift lock When the vehicle is parked, this lock prevents the transmission selector lever from being inadvertently moved out of position P without the SmartKey turned and the brake pedal depressed. Sidewall ( page 324) SRS (Supplemental Restraint System) Seat belts, emergency tensioning device and air bags. Though independent systems, they are closely interfaced to provide effective occupant protection. Tele Aid System (Telematic Alarm Identification on Demand) The Tele Aid system consists of three types of response: automatic and manual emergency, Roadside Assistance and information. Tele Aid is initially activated by completing a subscriber agreement and placing an acquaintance call. The Tele Aid system is operational provided that the vehicle's battery is charged, properly connected, not damaged and cellular and GPS coverage is available. 448