Page 88 of 561

87 Safety and Security
Occupant safety
If the 59indicator lamp is illu-
minated, the front passenger front air bag is
deactivated and will not be deployed.
If the 59indicator lamp is not
illuminated, the front passenger front air
bag is activated and will be deployed:
in the event of certain frontal impacts
if impact exceeds a preset deployment
threshold
independently of the side impact air
bags.
If the front passenger front air bag is de-
ployed, the rate of inflation will be influ-
enced by
the rate of relevant vehicle deceleration
as assessed by the air bag control unit
the front passenger’s weight category
as identified by the Occupant Classifica-
tion System (OCS)
Warning!
G
According to accident statistics, children
are safer when properly restrained in the
rear seating positions than in the front seat-
ing position. Thus, we strongly recommend
that children be placed in the rear seats
whenever possible. Regardless of seating
position, children 12 years old and under
must be seated and properly secured in an
appropriate infant or child restraint recom-
mended for the size and weight of the child.
The infant or child restraint must be properly
secured with the vehicle’s seat belt, the seat
belt and top tether strap, or lower anchors
and top tether strap, fully in accordance
with the child seat manufacturer’s instruc-
tions.
Children can be killed or seriously injured by
an inflating air bag. Note the following im-
portant information when circumstances re-
quire you to place a child in the front
passenger seat:
Your vehicle is equipped with air bag
technology designed to turn off the front
passenger front air bag in your vehicle
when the system senses the weight of a
typical 12-month-old child or less along
with the weight of a standard appropri-
ate child restraint on the front passen-
ger seat.
A child in a rear-facing child restraint on
the front passenger seat will be serious-
ly injured or even killed if the front pas-
senger front air bag inflates in a collision
which could occur under some circum-
stances, even with the air bag technolo-
gy. The only means to completely
eliminate this risk is to never place a
child in a rear-facing child restraint in
the front seat. We therefore strongly
recommend that you always place a
child in a rear-facing child restraint in
the back seat.
Page 131 of 561

130 Controls in detailLocking and unlocking
Automatic central locking
The doors and the tailgate lock automati-
cally when the ignition is switched on and
the wheels are turning at vehicle speeds of
approximately 9 mph (15 km/h) or more.You can open a locked door from the in-
side. Open door only when conditions are
safe to do so.
For information on towing the vehicle, see
“Towing the vehicle” (
page 499).
You can deactivate the automatic locking
mode using the control system
(
page 188).
Warning!
G
Monitor the closing procedure carefully to
make sure no one is in danger of being in-
jured. To prevent possible personal injury,
always keep hands and fingers away from
the cargo compartment opening when clos-
ing the tailgate. Be especially careful when
small children are around. To stop the clos-
ing procedure, do one of the following:
Press the tailgate closing switch1.
Press the KEYLESS-GO locking/closing
switch*.
Press the Šbutton on the SmartKey
with KEYLESS-GO*.
Press or pull the remote tailgate switch
(on the driver’s door).
Even with the SmartKey with KEYLESS-GO*
removed from the vehicle, the tailgate
closing switch can be operated. Therefore,
do not leave children unattended in the ve-
hicle, or with access to an unlocked vehicle.
Unsupervised use of vehicle equipment may
cause an accident and/or serious personal
injury.Warning!
G
Only drive with the tailgate closed as,
among other dangers such as blocked
visibility, exhaust fumes may enter the vehi-
cle interior.
iThe doors unlock automatically after an
accident if the force of the impact ex-
ceeds a preset threshold.
The vehicle automatically locks when
the ignition is switched on and the
wheels are turning at vehicle speeds of
approximately 9 mph (15 km/h) or
more. You could therefore lock yourself
out when the vehicle
is pushed or towed
is on a test stand
during a wheel change
Page 154 of 561

153 Controls in detail
Lighting
Switching off corner-illuminating front
fog lamps
The combination switch for the turn signal
resets automatically after major steering
wheel movements. This will switch off the
corner-illuminating front fog lamps if they
were activated by switching on the left or
right turn signal.
If the turn signal should stay on after mak-
ing the turn, the turn signal and
corner-illuminating front fog lamps can be
switched off by returning the combination
switch to its original position.Driving rearward
Switching on corner-illuminating front
fog lamps
Shift the automatic transmission to
reverse gearR (
page 198).
The inverse front fog lamp comes on
automatically depending on the
steering direction and steering angle.
Switching off corner-illuminating front
fog lamps
Shift the automatic transmission to a
gear other than reverse gearR
(page 197).
The respective front fog lamp goes out.
Hazard warning flasher
The hazard warning flasher can be
switched on at all times, even with the
SmartKey removed from the starter
switch.
The hazard warning flasher switches on
automatically when an air bag deploys.
The hazard warning flasher switch is
located on the upper part of the center
console.
1Hazard warning flasher switch
Page 159 of 561

158 Controls in detailInstrument clusterFor a full view illustration of the instrument
cluster, see “Instrument cluster”
(page 24).
1Dimming instrument cluster illumina-
tion
2Reset button
3Brightening instrument cluster illumi-
nationThe instrument cluster is activated when
you
open a door
switch on the ignition (
page 38)
press reset button 2
switch on the exterior lamps
(page 147)
You can modify the instrument cluster set-
tings in the instrument cluster submenu of
the control system (
page 178).
Instrument cluster illumination
Use button 1 or 3 to adjust the illumina-
tion brightness for the instrument cluster.
To brighten illumination
Press and hold button 3 until the
desired level of illumination is reached.
To dim illumination
Press and hold button 1 until the
desired level of illumination is reached.
Warning!
G
If the instrument cluster or the multifunction
display, or both, are inoperative or malfunc-
tioning, warning messages will not be re-
layed when potential danger exists. This
may cause you and others to be unaware of
certain risks, which may result in an acci-
dent and/or personal injury.
Contact the nearest authorized
Mercedes-Benz Light Truck Center as soon
as possible.
iThe instrument cluster illumination is
dimmed or brightened automatically to
suit ambient light conditions.
The instrument cluster illumination will
also be adjusted automatically when
you switch on the vehicle’s exterior
lamps.
Page 160 of 561

159 Controls in detail
Instrument cluster
Trip odometer
Make sure you are viewing the trip odome-
ter display (
page 161).
If it is not displayed, press buttonè
orÿ on the multifunction steering
wheel (
page 162) repeatedly until
the trip odometer appears in the multi-
function display.
Press and hold reset button 2
(page 158) until the trip odometer is
reset.
Tachometer
The red marking on the tachometer
(page 24) denotes excessive engine
speed.
To help protect the engine, the fuel supply
is interrupted if the engine is operated
within the red marking.
Outside temperature indicator
The outside temperature is indicated in the
multifunction display (
page 161).
!Avoid driving at excessive engine
speeds, as it may result in serious
engine damage that is not covered by
the Mercedes-Benz Limited Warranty.
Warning!
G
The outside temperature indicator is not de-
signed to serve as an ice-warning device and
is therefore unsuitable for that purpose.
Indicated temperatures just above the freez-
ing point do not guarantee that the road sur-
face is free of ice. The road may still be icy,
especially in wooded areas or on bridges.
Page 168 of 561
167 Controls in detail
Control system
Menus, submenus and functions
Menu6
Menu7
Menu8
Menu9
Settings
Vehicle configuration
Trip computer
Telephone*
(page 174)
(page 191)
(page 192)
(page 194)
Commands/submenusResetting to factory settings
Tow-away alarm on/off
Fuel consumption statistics
after start
Loading phone book
Instrument cluster submenu
Fuel consumption statistics
since the last reset
Searching for name in phone
book
Time/Date submenu
Calling up range (distance to
empty)
Lighting submenuVehicle submenuConvenience submenuiThe headings used in the menus table
are designed to facilitate navigation
within the system and are not neces-
sarily identical to those shown in the
control system displays.
The first function displayed in each
menu will automatically show you
which part of the system you are in.
Page 175 of 561

174 Controls in detailControl systemShould the vehicle’s system record any
conditions while driving, the number of
messages will reappear in the multifunc-
tion display
when the SmartKey in the starter
switch is turned to position0 or
removed from the starter switch
or
when you turn off the engine by
pressing the KEYLESS-GO* start/stop
button (
page 66) in the starter
switch once and open the driver’s door
(this puts the starter switch in
position0, same as with the SmartKey
removed from the starter switch)
Settings menu
In the
Settings
menu there are two func-
tions:
The function
Reset to factory
settings?
, with which you can reset all
the settings to the original factory
settings.
A collection of submenus with which
you can make individual settings for
your vehicle.
Press buttonè orÿ repeatedly
until the
Settings
menu appears in the
multifunction display.
iThe vehicle status message memory
will be cleared when you turn the
SmartKey in the starter switch to
position1 or2, or when you press the
KEYLESS-GO* start/stop button once
or twice without depressing the brake
pedal. You will then only see high
priority messages in the multifunction
display (
page 416).
Page 176 of 561

175 Controls in detail
Control system
The following settings and submenus are
available in the
Settings
menu:Resetting all settings
You can reset all the functions of all
submenus to the factory settings.
Press the reset button in the
instrument cluster (
page 158) for
approximately 3 seconds.
The request to press the reset button
once more to confirm appears in the
multifunction display.
Press the reset button once more.
The functions of all the submenus will
reset to factory settings.
Function
Page
Resetting all settings
175
Submenus in the Settings menu
176
Resetting the functions of a
submenu
176
Instrument cluster submenu
178
Time/date submenu
180
Lighting submenu
182
Vehicle submenu
186
Convenience submenu
189
iThe settings you have changed will not
be reset unless you confirm the action
by pressing the reset button a second
time.
After approximately 5 seconds, the Settings
menu reappears in the
multifunction display (
page 174).
iFor safety reasons, the function Light circuit headlamp mode
in the
Lighting
submenu cannot be reset
while driving.
The following message appears in the
multifunction display:
Lighting
Cannot be completely reset
to factory settings while driving