2006 Mercedes SLK-Class Owner's Manual - Page 171

Controls in detail Automatic transmission* The current gear selector lever position and the selected program mode (M/C/S) are indicated in the multifunction display ( page 158). Activating manual shift program Press program mode selector switch 1 repeatedly until the M for manual program mode M appears in the multifunction display. The transmission switches to the manual program mode M. Automatic shifting is switched off. The gear range is not limited. You can change the gears manually when the gear selector lever is in position D. You can upshift or downshift through the gears in succession. Upshifting ! In the manual program mode M, the transmission will not upshift, even if the engine has reached its overrevving range. Shift up to the next gear before the engine has reached its overrevving range. Make absolutely certain that the engine speed does not reach the red marking on the tachometer ( page 24). Otherwise the engine could be damaged which is not covered by the Mercedes-Benz Limited Warranty. i For information on automatic program modes C or S, see "Automatic shift program" ( page 163), "Gear selector lever one-touch gearshifting" ( page 164), and "Steering wheel gearshift control one-touch gearshifting" ( page 165). i The manual program mode M will not be stored. When the engine is turned off with the manual program mode M selected, the transmission will go to the automatic program mode (C or S) when the engine is restarted. 170