The automatic transmission is controlled electronically.
The transmission upshifts or downshifts automatically depending on which drive program is selected. The power is transferred by a torque converter.
When a moderate driving style is used, the transmission selects the most economical driving mode. It will then change up early and delay the downshifts to give better fuel economy.
The transmission switches to a sporty mode after a kick-down or when the driver uses a sporty driving style characterized by quick accelerator pedal movements, heavy acceleration, frequent changes in speed and traveling at the maximum speed.
If desired, the driver can also select the gears manually (tiptronic mode).
Selector lever positions
Fig. 134 Display in the instrument cluster: selector lever in
position P
The selector lever position engaged appears next to the selector lever as well as in the instrument cluster display.
P - Park
In this selector lever position the transmission is mechanically locked. Engage P only when the vehicle is completely stopped.
To shift in or out of position P, you must first press and hold the brake pedal and then press the release button in the selector lever handle while moving the selector lever to or from P. You can shift out of this position only with the ignition on.
R - Reverse
Select R only when the vehicle is at a full stop and the engine is running at idle speed.
Before you move the selector lever to R, press both the button in the hand le of the selector lever and the brake pedal at the same time.
When the ignition is on, the backup lights illuminate when the selector lever is moved into R.
N - Neutral
The transmission is in neutral in this position.
Shift to this position for standing with the brakes applied. The vehicle can also roll when the engine is stopped.
When the vehicle is stationary or at speeds below 1 mph (2 km/h), you must always apply the footbrake before and while moving the lever out of N.
D/S - Normal position for driving forward
In the D/S position, the transmission can be operated either in the normal mode D or in the sport mode S. To select the sport mode S, pull the selector lever back briefly. Pulling the lever back again will select the normal mode D. The instrument cluster display shows the selected driving mode.
In the normal mode D, the transmission automatically selects the suitable gear ratio. It depends on engine load, vehicle speed and driving style.
Select the sport mode S for sporty driving. The vehicle makes full use of the engine's power.
Shifting may become noticeable when accelerating.
Hybrid drive: electric driving is not possible.
When the vehicle is stationary or at speeds below 1 mph (2 km/h), you must always apply the foot brake before and while moving the lever to D/S out of N.
WARNING
Read and follow all WARNINGS.
Note
Coasting downhill with the transmission in N and the engine not running will result in damage to the automatic transmission and possibly the catalytic converter.
Tips