Page 113 of 376

113 Controls in detail
Instrument cluster
Turn the SmartKey in the starter switch
to position1 or2.
Call up the trip odometer and main
odometer by pressing buttonè
orÿ on the multifunction steering
wheel (
page 116).
Press buttonj ork until the
coolant temperature display appears.During severe operating conditions, e.g.
stop-and-go traffic, the coolant tempera-
ture may rise close to 248°F (120°C).
The engine should not be operated with
the coolant temperature above 248°F
(120°C). Doing so may cause serious en-
gine damage which is not covered by the
Mercedes-Benz Limited Warranty.
Trip odometer
Make sure you are viewing the trip
odometer display (
page 115).
I f i t i s n o t d i s p l a y e d , p r e s s b u t t o nè
orÿ on the multifunction steering
wheel (
page 116) until the trip odom-
eter appears.
Press and hold the reset button on the
instrument cluster (
page 112) until
the trip odometer is reset.
Tachometer
The red marking on the tachometer de-
notes excessive engine speed.
To help protect the engine, the fuel supply
is interrupted if the engine is operated
within the red marking.
iExcessive coolant temperature triggers
a warning in the multifunction display
(page 269).
!Avoid driving at excessive engine
speeds, as it may result in serious en-
gine damage that is not covered by the
Mercedes-Benz Limited Warranty.
Page 115 of 376

115 Controls in detail
Control system
Control system
The control system is activated as soon as
the SmartKey in the starter switch is
turned to position1. The control system
enables you to
call up information about your vehicle
change vehicle settings
For example, you can use the control sys-
tem to find out when your vehicle is next
due for service, to set the language for
messages in the instrument cluster display
and much more.
The control system relays information to
the multifunction display.
Multifunction display
1Trip odometer
2Main odometer
3Outside temperature
4Clock
1
5Current gear selector lever position
6Transfer case program mode
Warning!
G
A driver’s attention to the road and traffic
conditions must always be his /her primary
focus when driving.
For your safety and the safety of others, se-
lecting features through the multifunction
steering wheel should only be done by the
driver when traffic and road conditions per-
mit it to be done safely.
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 13.5 m) every second.
1See separate operating instructions for the
COMAND system for clock setting.
Page 116 of 376

116 Controls in detailControl systemMultifunction steering wheel
The displays in the multifunction display
and the settings in the control system are
controlled by the buttons on the multifunc-
tion steering wheel.Pressing any of the buttons on the multi-
function steering wheel will alter what is
shown in the multifunction display.
The information available in the multifunc-
tion display is arranged in menus, each
containing a number of functions or sub-
menus.
The individual functions are then found
within the relevant menu (radio or CD op-
erations under
AUDIO
, for example). These
functions serve to call up relevant informa-
tion or to customize the settings for your
vehicle.
1
Multifunction display in the speed-
ometerOperating the control system
2
Selecting the submenu or setting
the volumeçdown / to decreaseæup / to increase
3
Telephone*íto take a callìto end a call
4
Menu systemsèfor next menuÿfor previous menu
5
Moving within a menujfor next displaykfor previous display
Page 133 of 376

133 Controls in detail
Control system
Press buttonj ork repeatedly
until you see this message in the dis-
play:
PRESS BUTTON IN AUDIO MODE
.
The selection marker is on the current
setting.
Pressæ orç to select the de-
sired station selection mode. You can
select:
STATION SEARCH
MEMORY
selects next stored stationSetting automatic locking
Use this function to activate or deactivate
the automatic central locking. With the au-
tomatic central locking system activated,
the vehicle is centrally locked at vehicle
speeds of approximately 9 mph
(15 km/h).
Move the selection marker with
theæ orç button to the Vehicle
submenu.
Press buttonj ork repeatedly
until you see this message in the dis-
play:
AUTOMATIC DOOR LOCK
.
The selection marker is on the current
setting.
Pressæ orç to switch function ON or
OFF
.Convenience submenu
Access the
CONVENIENCE
submenu via the
SETTINGS
menu. Use the
CONVENIENCE
sub-
menu to change the settings for a number
of convenience features. The following
functions are available:
Activating easy-entry/exit feature
Use this function to activate and deacti-
vate the easy-entry/exit feature. When the
feature is activated, the steering wheel will
move back to facilitate exiting when you
remove the SmartKey from the starter
switch
open the driver’s door
However, the engine must be turned off.
Function
Page
Activate easy-entry/exit feature
133
Set key-dependency
135
Set parking position for exterior
rear view mirror
135
Page 134 of 376

134 Controls in detailControl system
After entering the vehicle, the steering
wheel will move into the position stored in
memory when
the driver’s door is closed
you put the SmartKey in the starter
switch and
press the appropriate stored position
button on the memory switch
(page 103)
Move the selection marker with
theæ orç button to the
CONVE-
NIENCE
submenu.
Press buttonj ork repeatedly
until you see this message in the dis-
play:
EASY-ENTRY FEATURE ACTIVATE
.
The selection marker is on the current
setting.
Pressæ orç to change the
easy-entry/exit setting.
The following settings are available for the
easy-entry/exit feature
Warning!
G
Make sure no one can become trapped or in-
jured by the moving steering wheel when
the easy-entry/exit feature is in operation
and the driver’s door is being opened or the
SmartKey is removed from the starter
switch.
Do not leave children unattended in the ve-
hicle, or with access to an unlocked vehicle.
Children could open the driver’s door and
unintentionally activate the easy-entry/exit
feature, which could result in an accident
and/or serious personal injury.
iTo cancel steering wheel movement,
do one of the following:
Move the steering column stalk
(page 22)
Press the memory switch
(page 102)
OFF
The easy-entry/exit
feature is deactivat-
ed
STEERING COLUMN
The easy-entry/exit
feature is activated
Page 135 of 376

135 Controls in detail
Control system
Setting key-dependency
Use this function to set whether the mem-
ory settings for the seats, the steering
wheel and the exterior mirrors should be
stored separately for each SmartKey
(page 101).
Move the selection marker with
theæ orç button to the
CONVE-
NIENCE
submenu.
Press buttonj ork repeatedly
until you see this message in the dis-
play:
SETTINGS KEY-DEPENDENT
.
The selection marker is on the current
setting.
Pressæ orç to set key depen-
dency to
ON or
OFF
. Setting parking position for exterior rear
view mirror
Use the
MIRROR SETTING WHEN PARKING
function to select whether the passen-
ger-side exterior rear view mirror should be
turned downward during parking maneu-
vers when reverse gear is engaged. For
more information, see “Activating exterior
rear view mirror parking position”
(
page 153).
Move the selection marker with
theæ orç button to the
CONVE-
NIENCE
submenu.
Press buttonj ork repeatedly
until you see this message in the dis-
play:
MIRROR SETTING WHEN PARKING
.
The selection marker is on the current
setting.
Pressæ orç to switch function ON or
OFF
.
iFor safety reasons, resetting the
SET-
TINGS KEY-DEPENDENT
submenu to fac-
tory settings will not reset while
driving.
In the display you will then see the mes-
sage:
CONVENIENCE – CANNOT BE TO-
TALLY RESET TO FACTORY SETTINGS
WHILE DRIVING
.
Page 138 of 376

138 Controls in detailControl systemYou 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.
Which messages will appear in the display
field depends on whether your telephone is
switched on or off:
If the telephone is off, the message in
the multifunction display is:
TEL OFF
.
If the telephone is on:
The telephone will then search for a
network. During this time the display is
empty.
As soon as the telephone has found a
network,
READY
is indicated in the dis-
play.
1Signal strength
This standby message indicates that your
telephone is ready for use and you can op-
erate 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 display you will then see the message:
Press buttoní.
You have answered the call. In the dis-
play you see the length of the call.
Ending a call
Press buttonì.
You have ended the call. In the display
you will again see the standby mes-
sage.
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 148 of 376

148 Controls in detailDifferential locks
Differential locksFor more information on off-road driving,
see “Off-road driving” (
page 213).
Differential locks improve the vehicle’s
tractive power off-road. Switch on differen-
tial locks:
for off-road driving
to turn the ABS off during off-road driv-
ing
for driving through water
when driving on deep snow and icy or
fouled surfaces!Do not engage the front axle differen-
tial lock when driving around tight cor-
ners. This restricts steering ability.
!When driving off-road, apply only mod-
erate pressure to the accelerator pedal
if the differential locks are switched on.
When running on a (single-axle) dyna-
mometer – no matter how briefly – you
must:
raise the non-driven axle
or
disconnect its drive shaft
and
engage the transfer differential lock
Otherwise the transfer case can be
damaged, which is not covered by the
Mercedes-Benz Limited Warranty.
Warning!
G
Never drive on pavement with differential
locks engaged.
Steering control will be strongly affected
with the differential locks activated.
The ABS, BAS and ESP are switched off au-
tomatically when the transfer case differen-
tial lock is activated.