2009 Mercedes S-Class Owner's Manual - Page 139

Controls in detail Automatic transmission X Briefly press the gear selector lever to the left in the D- direction. Briefly pull left gearshift control 1 (Y page 134). The automatic transmission shifts into the next lower gear. Deactivating manual shift program X X or X Press the program mode selector switch repeatedly until C or S appears in the multifunction display. or X i For maximum acceleration, press and hold the gear selector lever to the left in the D- direction or pull and hold the left gearshift control. Depending on the engine speed the automatic transmission selects the optimal gear for maximum acceleration. i When you brake or stop, the automatic transmission shifts down into a gear from which you can easily accelerate or take off. Kickdown Using the kickdown when driving in manual program mode M is not possible. Restart the engine. The automatic transmission will go to automatic program mode (C or S). Manual program mode M is not stored. Shift the automatic transmission into drive position D (for second gear) or reverse gear R. X Have the automatic transmission checked at an authorized Mercedes-Benz Center as soon as possible. Emergency operation (limp-home mode) If vehicle acceleration becomes less responsive or sluggish or the automatic transmission no longer shifts, the automatic transmission is most likely operating in limphome (emergency operation) mode. In this mode only second gear and reverse gear R can be selected. X Stop the vehicle in a safe location. X Shift the automatic transmission into park position P. X Turn off the engine. X Wait at least 10 seconds before restarting. X Restart the engine. Z 137