2009 Mercedes SL-Class Owner's Manual - Page 114

Controls in detail Driving and parking i Once the vehicle is in motion, the automatic central locking system engages and the locking knobs in the doors move down. The automatic door lock feature can be deactivated (Y page 140). Automatic transmission G Warning! It is dangerous to shift the automatic transmission out of park 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. ! Only shift the automatic transmission into reverse gear R or park position P when the vehicle is stopped. Otherwise the automatic transmission could be damaged. X i Shifting the automatic transmission out of park position P is only possible with the brake pedal depressed. Only depressing the brake pedal releases the gear selector lever lock. X X X X Problems while driving The engine runs erratically and misfires RAn ignition cable may be damaged. Wait for the gear selection process to complete before setting the vehicle in motion. Release the brake pedal. If engaged, release the parking brake. Carefully depress the accelerator pedal. X X RThe engine electronics may not be operating properly. catalytic converter and damaged it. RUnburned gasoline may have entered the Give very little gas. Have the problem checked at an authorized Mercedes-Benz Center as soon as possible. After a cold start, the automatic transmission shifts at a higher engine revolution. This allows the catalytic converter to reach its operating temperature earlier. For more information on driving, see "Driving instructions" (Y page 236). The coolant temperature is above 248‡ (120†) The coolant is too hot and is no longer cooling the engine. X Stop the vehicle in a safe location as soon as possible. X X X Turn off the engine immediately. Allow the engine and coolant to cool off. Check the coolant level and add coolant if necessary (Y page 207). Depress the brake pedal. The gear selector lever lock is released. Shift the automatic transmission into drive position D or reverse gear R. X 112