2011 Mercedes S-Class Owner's Manual - Page 308

306 Automatic transmission Problem The engine is not running smoothly and is misfiring. Possible causes/consequences and M Solutions There is a malfunction in the engine electronics or a mechanical component of the engine management system. X Only depress the accelerator pedal slightly. X Have the cause rectified immediately at a qualified specialist workshop. Otherwise, non-combusted fuel may get into the catalytic converter and damage it. The coolant level is too low. The coolant is too hot and the engine is no longer being cooled sufficiently. X Stop as soon as possible and allow the engine and the coolant to cool down. X Check the coolant level (Y page 450). Observe the warning notes as you do so and add coolant if necessary. Driving and parking The coolant temperature gauge shows a value above 248 ‡(120 †). Automatic transmission Important safety notes G Warning It is dangerous to shift AUTOTRONIC out of parking position P or neutral position N if the engine speed is higher than idle speed. If your foot is not firmly on the brake pedal, the vehicle could accelerate quickly forward or in reverse. You could lose control of the vehicle and hit someone or something. Only shift into gear when the engine is idling normally and when your right foot is firmly on the brake pedal. G Warning! HYBRID vehicles: It is imperative that you read the HYBRID Supplemental Operating Instructions included in your vehicle literature portfolio. You may otherwise not receive all necessary safety information and warning for the operation of your vehicle. DIRECT SELECT lever Overview of transmission positions The DIRECT SELECT lever is on the right of the steering column. G Warning! Keep in mind that turning off the engine alone only will shift AUTOTRONIC into neutral position N automatically. Always shift AUTOTRONIC into park position P before turning off the engine. Otherwise the vehicle could roll away which could result in an accident and/or serious personal injury. P Park position with parking lock R Reverse