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:
Belt height adjustment
You can adjust the seat belt height on the
driver's seat and the front-passenger seat.
Adjust the height so that the upper part of the
seat belt is routed across the center of your
shoulder.
&# ...
Cleaning the exhaust tail pipes
Impurities combined with the effects of road
grit and corrosive environmental factors may
cause flash rust to form on the surface. You
can restore the original shine of the exhaust
tail pipe by cl ...
System self-test
After you have switched on the ignition, the
system carries out a self-diagnosis.
WARNING
A malfunction in the system has been
detected if one of the following conditions
occurs:
• the indi ...