General notes
If the vehicle can no longer be locked or unlocked with the SmartKey, use the mechanical key.
If you use the mechanical key to unlock and open the driver's door or the trunk lid, the anti-theft alarm system will be triggered.
There are several ways to turn off the alarm:
To turn the alarm off with the SmartKey: press the or button on the SmartKey.
or
Insert the SmartKey into the ignition lock.
or
To deactivate the alarm with KEYLESS-GO: press the Start/Stop button in the ignition lock. The SmartKey must be in the vehicle.
or
Lock or unlock the vehicle using KEYLESS-GO. The SmartKey must be outside the vehicle.
If you unlock the vehicle using the mechanical key, the fuel filler flap will not be unlocked automatically.
To unlock the fuel filler flap: insert the SmartKey in the ignition lock.
See also:
Premium-grade unleaded gasoline
To ensure the longevity and full
performance of the engine, only premiumgrade
unleaded gasoline may be used.
If there is no premium-grade unleaded
gasoline available and regular-grade
unle ...
Registering satellite radio
Select Audio in the main function bar by
sliding and turning
the COMAND
controller and press to confirm.
Select Sat. Radio and press
to
confirm.
Service information screen
1 Provid ...
Roadside Assistance button
► Open the stowage compartment under the
armrest.
► Press and hold Roadside Assistance
button 1 for more than two seconds.
This initiates a call to the Mercedes-Benz
Customer Assi ...