Locking and unlocking centrally
The SmartKey centrally locks/unlocks:
- the doors
- the trunk lid/tailgate
- the fuel filler flap


When unlocking, the turn signals flash once.
When locking, they flash three times
When it is dark, the surround lighting also comes on if it is activated in the on-board computer.
If you activate the acoustic locking confirmation function, you will hear the following, depending on the date of production of the vehicle:
- an acoustic signal when locking
or
- one acoustic signal when unlocking and
three when locking.
The audible signal can be activated and deactivated using the on-board computer.
•► To unlock centrally: press the % button.
If you do not open the vehicle within approximately 40 seconds of unlocking:
- the vehicle is locked again.
- the theft deterrent locking system is armed
again.
•► To lock centrally: press the & button.
See also:
Adjusting the rear seat head restraint angle
Adjust the head restraints so that they are as close as possible to your head.
You can only adjust the two outer head restraints.
X Pull or push the top of the head restraint until it is in the de ...
Time/date
This submenu is only available on vehicles with Audio 20. To set the time and
the date for vehicles with COMAND, see the separate operating instructions.
In the Time/date submenu, you can set the t ...
Trailer towing
- Drive in the middle of the engine speed
range on uphill gradients.
- Depending on the uphill or downhill
gradient, shift down into shift range 3 or
2, even if cruise control or
DISTRONIC PL ...
