Page 174 of 498

173 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 you see 
the 
Tel
 menu in the multifunction dis-
play.Which messages will appear in the multi-
function display depends on whether your 
telephone is switched on or off:
If the telephone is off, the message in 
the multifunction display is: 
PHONE off
.
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, 
READY
 appears in the multi-
function 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. In the mul-
tifunction display you see the length of 
the call.
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/or 
personal injury.
iIf you do not wish to accept a call, 
press buttont. 
     
        
        Page 261 of 498

260 Controls in detailUseful featuresFloormats
1Retainer pins
2EyeletsRemoving
Pull floormats off of retainer pins1.
Remove the floormats.
Installing
Lay down the floormat.
Press the floormat eyelets2 onto re-
tainer pins1.
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.
iAn additional power outlet is located on 
the left side in the trunk.iTo install or remove the floormat more 
easily, move the driver’s seat or front 
passenger seat as far to the rear as 
possible (
page 40).
Warning!
G
Whenever you are using floormats, make 
sure there is enough clearance and that the 
floormats are securely fastened.
Floormats should always be securely fas-
tened using eyelets2 and retainer pins1.
Before driving off, check that the floormats 
are securely in place and adjust them if nec-
essary. A loose floormat could slip and 
hinder proper functioning of the pedals.
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/or serious 
personal injury. 
     
        
        Page 276 of 498

275 Controls in detail
Useful features
Erasing the integrated remote control 
memory
Switch on the ignition (
page 36).
Simultaneously press and hold down 
the outer signal transmitter buttons2 
and 4, for approximately 20 seconds, 
until the indicator lamp1 flashes rap-
idly. Do not hold for longer than 
30 seconds.
The codes of all three channels are 
erased.Programming tips
If you are having difficulty programming 
the integrated remote control, here are 
some helpful tips:
Check the frequency of the hand-held 
remote control5 (typically located on 
the reverse side of the remote). The in-
tegrated remote control is compatible 
with radio-frequency devices operating 
between 288-399 MHz.
Put a new battery in the hand-held re-
mote control5. This will increase the 
likelihood of the hand-held remote con-
trol sending a faster and more accurate 
signal to the integrated remote control.
While performing step 3, hold the 
hand-held remote control6 at differ-
ent lengths and angles from the signal 
transmitter button (2, 3 or4) you 
are programming. Attempt varying an-
gles at the distance of 2 to 5 inches 
(5 to 12 cm) away or the same angle at 
varying distances.
If another hand-held remote control is 
available for the same device, try the 
programming steps again using that 
other hand-held remote control. Make 
sure new batteries are in the hand-held 
remote control before beginning the 
procedure.
Straighten the antenna wire from the 
garage door opener assembly. This 
may help improve transmitting and/or 
receiving signals.
iIf you sell your vehicle, erase the codes 
of all three channels. 
     
        
        Page 289 of 498

288 OperationDriving instructionsTelephones and two-way radios
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.
Refer to the radio transmitter operation 
instructions regarding use of an external 
antenna.
Catalytic converter
Your Mercedes-Benz is equipped with 
monolithic-type catalytic converters, an 
important element in conjunction with the 
oxygen sensors to achieve substantial 
control of the pollutants in the exhaust 
emissions. Keep your vehicle in proper 
operating condition by following our rec-
ommended maintenance instructions as 
outlined in your Maintenance Booklet.
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/or 
personal injury.
!To prevent damage to the catalytic con-
verters, only use premium unleaded 
gasoline in this vehicle.
Any noticeable irregularities in engine 
operation should be repaired promptly. 
Otherwise, excessive unburned fuel 
may reach the catalytic converter, 
causing it to overheat, which could 
potentially start a fire.
Warning!
G
As with any vehicle, do not idle, park or 
operate this vehicle in areas where combus-
tible materials such as grass, hay or leaves 
can come into contact with the hot exhaust 
system, as these materials could be ignited 
and cause a vehicle fire.