If you shift down on slippery road surfaces to increase the engine braking effect, the drive wheels may lose traction.
When the automatic transmission is shifted to position 
, you can manually shift it with the steering wheel gearshift paddle. If permitted, the automatic transmission shifts to the next gear up or down depending on the steering wheel gearshift paddle being pulled.
temporary setting
permanent setting
The gears shift automatically when manual gearshifting is deactivated.
Temporary setting:
or 
. Manual gearshifting is activated for a short time. The current gear is displayed in the multifunction display.
How long the manual gearshifting stays activated is dependant on the driving style.
. . and hold it in place. The transmission position appears in the multifunction display.
Permanent setting:
More.