Page 173 of 506

171 Controls in detail
Control system
Resetting fuel consumption statistics
Press buttonÿ orè repeatedly
until you see the first function of the
Trip computer menu.
Press buttonj ork repeatedly
until you see the reading that you want
to reset in the display.
Press and hold the reset button in the
instrument cluster (
page 24) until
the value is reset to 0.
Call up range (distance to empty)
Press buttonÿ orè repeatedly
until you see the first function of the
Trip computer menu.
Press buttonj ork repeatedly
until you see this message in the dis-
play:
Range:
In the display you will see the calculat-
ed range based on the current fuel tank
level.
TEL menu*
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 display.
Warning!
G
A driver’s attention to the road must always
be his/her primary focus when driving. For
your safety and the safety of others, we rec-
ommend that you pull over to a safe location
and stop before placing or taking a tele-
phone call. If you choose to use the tele-
phone while driving, please use the
hands-free device and only use the tele-
phone when weather, road and traffic condi-
tions permit.
Some jurisdictions prohibit the driver from
using a cellular telephone while driving a ve-
hicle.
Bear in mind that at a speed of just 30 mph
(approximately 50 km / h), your vehicle is
covering a distance of 44 feet (approximate-
ly 14 m) every second.
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.
Page 272 of 506

270 Controls in detailUseful featuresHeated steering wheel*
The steering wheel heating warms up the
leather area of the steering wheel.
The stalk with the heated steering wheel
switch is on the lower left-hand side of the
steering wheel.
1Indicator lamp
2Switching off
3Switching onSwitching on
Switch on the ignition (
page 33).
Turn switch at the tip of stalk in the di-
rection of arrow3.
The steering wheel is heated. Indicator
lamp1 comes on.
Switching off
Turn switch at the tip of stalk in direc-
tion of arrow2.
The heated steering wheel is turned off.
Indicator lamp1 goes out.
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.
iThe steering wheel heating does not
turn off automatically.
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 298 of 506

296 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 in-
structions regarding use of an external an-
tenna.
Catalytic converter (Gasoline engine)
Your Mercedes-Benz is equipped with
monolithic-type catalytic converters, an
important element in conjunction with the
oxygen sensors to achieve substantial con-
trol of the pollutants in the exhaust emis-
sions. 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 po-
tentially start a fire.
Warning!
G
As with any vehicle, do not idle, park or op-
erate this vehicle in areas where combusti-
ble 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.