De-authorizing (de-registering) a Bluetooth® device
Mercedes-Benz USA, LLC recommends deauthorization in both COMAND and the Bluetooth® device, e.g. the mobile phone.
Subsequent authorization may otherwise fail.
In the Bluetooth® device list, select the
authorized device by turning 
the
COMAND controller.
Select Options by sliding 
the
COMAND controller and press 
to
confirm.
Select De-authorize and press
to
confirm.
A prompt appears asking whether you really wish to de-authorize this device.
Select Yes or No and press to
confirm.
If you select Yes, the authorization for the device will be revoked.
If you select No, the process will be aborted.
If a Bluetooth® device has been deauthorized
and is out of range, when a new
search is carried out it will not appear in the
Bluetooth® device list.
See also:
PRE-SAFE® Brake
PRE-SAFE® Brake is only available in vehicles
with DISTRONIC PLUS.
Observe the "Important safety notes"
section
PRE-SAFE® Brake can help you to minimize
the risk of a frontal collisi ...
Important safety notes
WARNING
To help avoid personal injury during a collision
or sudden maneuver, exercise care when
storing objects in the vehicle. Put luggage or
cargo in the trunk if possible.
Do not pile lug ...
Servicing the brakes
If the red brake warning lamp lights up in
the instrument cluster and you hear a
warning tone while the engine is running,
the brake fluid level may be too low.
Observe additional warning ...