SmartKey functions
■ 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.
The SmartKey centrally locks/unlocks: • the doors • the tailgate • the fuel filler flap
When unlocking, the turn signals flash once.
When locking, they flash three times.
You can also set an audible signal to confirm that the vehicle has been locked. The audible signal can be activated and deactivated using the on-board computer .
When it is dark, the surround lighting also comes on if it is activated in the on-board computer .
See also:
Refueling
Fuel filler flap
Example: G 550 fuel filler cap
1 To open the fuel filler flap
2 Tire pressure table
3 Fuel type
4 To insert the fuel filler cap
When you open or close the vehicle with the
Sm ...
Selecting, mounting and replacing
tires
• Only mount tires and wheels of the same
type and make.
• Only mount approved tires of the correct
size onto the wheels.
• Tires are supplied with a protective layer
from the factory. Break in n ...
Towing and tow-starting
Important safety notes
WARNING
If you tow the vehicle, you must use a rigid
towing bar if:
- the engine is not running.
- there is a brake system malfunction.
- there is a malfunction in the po ...