2011 Mercedes R-Class Owner's Manual - Page 161

Automatic transmission Driving situations = 5 You can use the engine's braking effect. To use the braking effect of the engine on downhill gradients and for driving: Ron Rin 159 Selecting the ideal shift range X steep mountain roads mountainous terrain Rin arduous conditions 4 To use the braking effect of the engine on extremely steep downhill gradients and on long downhill stretches Restricting the shift range X Pull the left-hand steering wheel paddle shifter. The shift range is restricted. i In order to prevent the engine from overrevving, the automatic transmission does not shift down when the engine speed is too high. i If the maximum engine speed for the shift range is reached and you continue to accelerate, the automatic transmission shifts up in order to prevent the engine from overrevving, even if the shift range is restricted. Derestricting the shift range X Pull the right-hand steering wheel paddle shifter. The shift range is derestricted. Clearing the shift range restriction X Pull and hold the right-hand steering wheel paddle shifter until D is shown again in the multifunction display. The automatic transmission shifts from the current shift range directly to D. Z Driving and parking Pull the left-hand steering wheel paddle shifter and hold it in position. The automatic transmission shifts to the gear which allows ideal acceleration and deceleration. To do this, the automatic transmission shifts down one or more gears.