Page 153 of 442

151 Controls in detail
Control system
You can use the functions in the 
TEL
 menu 
to operate your telephone, provided it is 
connected to a hands-free system and 
switched on.
Switch on the telephone and 
COMAND*.
Press buttonÿ orè on the 
steering wheel repeatedly until the 
message
TEL
 appears in the 
multifunction display.
Which messages will appear in the 
multifunction display depends on whether 
your telephone is switched on or off:
If the telephone is off, the message PHONE OFF
 appears in the multifunction 
display.
If the telephone is on:
The telephone will then search for a 
network. During this time the multi-
function display is empty.
As soon as the telephone has found a 
network, the message 
READY
 appears in 
the multifunction display.
This standby message indicates that your 
telephone is ready for use and you can 
operate it using the control system.Answering a call
When your telephone is ready to receive 
calls, you can answer a call at any time. In 
the multifunction display you will then see 
the message:
Press buttons.
You have answered the call. The 
duration of the call appears in the 
multifunction display.
Never operate radio transmitters equipped 
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna) 
from inside the vehicle while the engine is 
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, 
possibly resulting in an accident and 
personal injury. 
     
        
        Page 249 of 442

247 Controls in detail
Useful features
Push down cover plate1 to close 
ashtray.
The cover plate engages.Electrical outlet in the rear passenger 
compartment
1Electrical outlet
2Cover
Switch on ignition (
page 33).
Pull at top of cover2.
Flip cover1 to the left and insert 
electrical plug (cigarette lighter type).
Telephone*
Radio transmitters, such as a portable tele-
phone or a citizens band unit, should only 
be used inside the vehicle if they are con-
nected to an antenna that is installed on 
the outside of the vehicle.
The external antenna must be approved by 
Mercedes-Benz. Please contact an autho-
rized Mercedes-Benz Center for informa-
tion on the installation of an approved 
external antenna. Refer to the radio trans-
mitter operation instructions regarding use 
of an external antenna.
Warning!
G
Never touch the heating element or sides of 
the lighter; they are extremely hot. Hold the 
knob only.
When leaving the vehicle, always remove the 
SmartKey from the starter switch, and lock 
your vehicle. Do not leave children unat-
tended in the vehicle, or with access to an 
unlocked vehicle. Unsupervised use of vehi-
cle equipment may cause an accident 
and/or serious personal injury.iThe lighter socket can be used to 
accommodate electrical accessories 
up to a maximum 85 W.
iThe electrical outlet can be used to 
accommodate electrical consumers 
(e.g. air pump, auxiliary lamps) up to a 
maximum of 180 W.
Warning!
G
Never operate radio transmitters equipped 
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna) 
from inside the vehicle while the engine is 
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and personal 
injury. 
     
        
        Page 274 of 442

272 OperationDriving instructionsPassenger compartmentDriving abroad
Abroad, there is an extensive 
Mercedes-Benz service network at your 
disposal. If you plan to drive into areas 
which are not listed in the index of your 
Mercedes-Benz Center directory, you 
should request pertinent information from 
an authorized Mercedes-Benz Center.Control and operation of radio 
transmitters
COMAND*, radio and telephone*Telephones* and two-way radios
Radio transmitters, such as a portable 
telephone or a citizens band unit should 
only be used inside the vehicle if they are 
connected to an antenna that is installed 
on the outside of the vehicle.
Refer to the radio transmitter operation 
instructions regarding use of an external 
antenna.
Warning!
G
Always fasten items being carried as 
securely as possible.
In an accident, during hard braking or sud-
den maneuvers, loose items will be thrown 
around inside the vehicle, and cause injury 
to vehicle occupants unless the items are 
securely fastened in the vehicle.
The trunk is the preferred place to carry 
objects.
Warning!
G
Please do not forget that your primary 
responsibility is to drive the vehicle safely. 
Only operate the COMAND (Cockpit 
Management and Data System), radio or 
telephone
1 if road, weather and traffic 
conditions permit.
Bear in mind that at a speed of just 30 mph 
(approximately 50 km/h), your vehicle is 
covering a distance of 44 feet 
(approximately 14 m) every second.
1Observe all legal requirements
Warning!
G
Never operate radio transmitters equipped 
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna) 
from inside the vehicle while the engine is 
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, 
possibly resulting in an accident and 
personal injury.