mode MERCEDES-BENZ GL320CDI 2007 X164 User Guide

109 Safety and Security
Driving safety systems
EBP
The EBP enhances braking effectiveness
by allowing the rear brakes to supply a
greater proportion of the braking effort
without a loss of vehicle stability.
For more information, see the “Practical
hints” section (
page 438) and
(
page 471).
4-ETS
The 4-Electronic Traction System (4-ETS)
improves the vehicle’s ability to utilize
available traction, especially under
slippery road conditions. The brakes are
applied to the spinning wheel and power is
transferred to the wheel(s) with traction.
The ESP
® warning lampv in the instru-
ment cluster, starts to flash at any vehicle
speed, as soon as a tire loses traction and
the wheel begins to spin.
Warning!G
If the EBP is malfunctioning, the brake sys-
tem is still functioning. However, the rear
wheels may lock during hard braking, caus-
ing you to lose control over the vehicle and
possibly causing an accident. Adjust your
driving style to the non-operating status of
the EBP.
iIf conditions require, switch on off-road
driving program (
page 279) or LOW RANGE*
mode (
page 203).
Warning!G
When you see ESP® warning lampv
flashing in the instrument cluster, then pro-
ceed as follows:

While driving off, apply as little throttle
as possible.

While driving, ease up on the accelera-
tor.

Adapt your speed and driving style to
the prevailing road conditions.
Failure to observe these guidelines could
cause the vehicle to skid.
The 4-ETS cannot prevent accidents resul-
ting from excessive speed.

110 Safety and Security
Driving safety systems
For more information, see the “Practical
hints” section (
page 436) and
(
page 451).
Off-road - 4-ETS
With the off-road driving program switched
on (
page 279), or with the transmission
in LOW RANGE* mode (
page 203), the
4-ETS designed for off-road use is auto-
matically activated.
!Operational or performance test must only
be conducted on a two-axle dynamometer. If
such tests are necessary, contact an authorized
Mercedes-Benz Light Truck Center. You could
otherwise seriously damage the brake system or
the transfer case which is not covered by the
Mercedes-Benz Limited Warranty.
!Because the ESP® operates automatically,
the engine and ignition must be shut off
(SmartKey in starter switch position0 or1 or
KEYLESS-GO* start/stop button in
position0or1) when testing the parking brake
on a brake test dynamometer and such testing
should be no longer than 10 seconds.
Active braking action through the ESP
® may
otherwise seriously damage the brake system
which is not covered by the Mercedes-Benz
Limited Warranty.
iIf the yellow ESP® warning lampv
comes on while driving, the 4-ETS is being
switched off temporarily to prevent overheating
of the drive wheel brakes. In addition, the
message
ESP inoperative See Operator’s
Manual
appears in the multifunction display.

130 Controls in detail
Locking 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.
For information on towing the vehicle, see
“Towing the vehicle” (
page 540).
You can deactivate the automatic locking
mode using the control system
(
page 183).
Locking and unlocking from the inside
You can lock or unlock the doors and the
tailgate from inside using the central lock-
ing or unlocking switch. This can be useful,
for example, if you want to lock the vehicle
before starting to drive.
The fuel filler flap cannot be locked or un-
locked with the central locking or unlock-
ing switch.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 vehi-
cle, or with access to an unlocked vehicle. A
child’s unsupervised access to a vehicle
could result in an accident and/or serious
personal injury.
iTo prevent a possible inadvertent lockout,
the tailgate will open automatically if a SmartKey
with KEYLESS-GO* is recognized inside the
vehicle.
iYou can open a locked door from the inside.
Open door only when conditions are safe to do
so.
iThe doors unlock automatically after an
accident if the force of the impact exceeds 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
Warning!G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. A child’s unsupervised
access to a vehicle could result in an
accident and/or serious personal injury.


145 Controls in detail
Lighting
Lighting
For information on how to switch on the
headlamps and use the turn signals, see
“Switching on headlamps” (
page 62)
and “Turn signals” (
page 63).
Exterior lamp switch
iIf you drive in countries where vehicles drive
on the other side of the road than the country in
which the vehicle is registered, you must have
the headlamps modified for symmetrical low
beams. Relevant information can be obtained at
any authorized Mercedes-Benz Light Truck
Center.
iVehicles equipped with active Bi-Xenon*
headlamps:
The active Bi-Xenon* headlamps monitor the
vehicles steering angle and vehicle speed, then
automatically shift their beams to either side to
better follow the curvature of the road ahead,
increasing usable illumination over conventional
headlamps.1‚Standing lamps, left (turn left two
stops)
2ˆStanding lamps, right (turn left
one stop)
3MOff
Daytime running lamp mode
(
page 147)
4UAutomatic headlamp mode
Daytime running lamp mode
(
page 147)
5CParking lamps (also side marker
lamps, tail lamps, license plate
lamps, instrument panel lamps)
6BLow beam headlamps or high
beam headlamps when the com-
bination switch is pushed for-
ward. The tail lamps, license
plate lamps, side marker lamps,
parking lamps and instrument
panel lamps also come on.
7‡Front fog lamps
8†Rear fog lamp
iIf you hear a warning signal you have
forgotten to switch off the headlamps before
opening the driver’s door.
In addition the message
Switch off lights
appears in the multifunction display.
Switch off the headlamps.
!Failure to switch off the headlamps when
leaving the vehicle may result in a discharged
battery.

146 Controls in detail
Lighting
Manual headlamp mode
The low beam headlamps and the parking
lamps can be switched on and off with the
exterior lamp switch.
Turn the exterior lamp switch to
positionB.
Automatic headlamp mode
The following lamps switch on and off au-
tomatically depending on the brightness of
the ambient light:

Low beam headlamps

Tail and parking lamps

License plate lamps

Side marker lamps
Turn the exterior lamp switch to
positionU.
With the SmartKey in starter switch
position1 or the KEYLESS-GO*
start/stop button pressed once, only
the parking lamps and the side marker
lamps will switch on and off automati-
cally.
When the engine is running, the low
beam headlamps, the tail and parking
lamps, the license plate lamps, and the
side marker lamps will switch on and
off automatically.
Warning!G
If the exterior lamp switch is set toU,

the headlamps may switch off unexpect-
edly when the system senses bright
ambient light, for example light from
oncoming traffic

the headlamps will not be automatically
switched on under foggy conditions
To minimize risk to you and to others,
activate headlamps by turning exterior lamp
switch toB when driving or when traffic
and/or ambient lighting conditions require
you to do so.
In low ambient lighting conditions, only
switch from positionU toB with the
vehicle at a standstill in a safe location.
Switching fromUtoB will briefly
switch off the headlamps. Doing so while
driving in low ambient lighting conditions
may result in an accident.
The automatic headlamp feature is only an
aid to the driver. The driver is responsible for
the operation of the vehicle’s lights at all
times.
iUSA only:
With the automatic headlamp mode activated
you can switch on the high beam headlamps in
low ambient lighting conditions.

147 Controls in detail
Lighting
Daytime running lamp mode
Turn the exterior lamp switch to
positionM orU.
When the engine is running, the low
beam headlamps are switched on.
In low ambient light conditions, the
following lamps will switch on
additionally:

Tail and parking lamps

License plate lamps

Side marker lamps
Canada only
The daytime running lamp mode is manda-
tory and therefore in a constant mode.When the engine is running, and you shift
from a driving position to positionN orP,
the low beam headlamps will switch off
with a 3 minute delay.
When the engine is running, and you
turn the exterior lamp switch to
positionC, the parking lamps and
the side marker lamps switch on
additionally

turn the exterior lamp switch to
positionB, the manual headlamp
mode has priority over the daytime
running lamp mode
The corresponding exterior lamps
switch on (
page 62).USA only
By default, the daytime running lamp mode
is deactivated. Activate the daytime
running lamp mode using the control
system, see “Setting daytime running lamp
mode (USA only)” (
page 178).
When the engine is running, and you turn
the exterior lamp switch to positionC
orB, the manual headlamp mode has
priority over the daytime running lamp
mode.
The corresponding exterior lamps switch
on (
page 62).
iWith the daytime running lamp mode
activated and the engine running, you cannot
switch off the low beam headlamps manually.
iWith the exterior lamp switch in
positionM orU, you cannot switch on the
high beam headlamps.
The high beam flasher is available at all times.
For nighttime driving turn the exterior lamp
switch to positionB to permit activation of
the high beam headlamps.
iWith the exterior lamp switch in
positionM, you cannot switch on the high
beam headlamps.
The high beam flasher is available at all times.
For nighttime driving turn the exterior lamp
switch to positionB orU to permit
activation of the high beam headlamps.

150 Controls in detail
Lighting
Corner-illuminating front fog lamps*
The corner-illuminating front fog lamps im-
prove illumination of the area in the direc-
tion into which you are turning.
The corner-illuminating front fog lamps will
operate with the engine running and with

the exterior lamp switch in
positionB (
page 145)
or

the exterior lamp switch in
positionU (
page 145)
or

the daytime running lamp mode
activated (
page 147)Driving forward
Switching on corner-illuminating front
fog lamps
Switch on the left or right turn signal
(
page 63), depending on whether
you are turning left or right.
The respective front fog lamp comes on
and illuminates the area in the direc-
tion into which you are turning.
or
Turn steering wheel in desired direc-
tion.
The front fog lamp on the side of your
steering direction comes on.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
making the turn, the turn signal and the
corner-illuminating front fog lamps can be
switched off by returning the combination
switch to its original position.
iWith the automatic headlamp mode activat-
ed: The corner-illuminating front fog lamps will
only come on in low ambient lighting conditions.
If you are driving faster than 25 mph (40 km/h)
or have the front fog lamps switched on, the
corner-illuminating function is not available.iThe corner-illuminating front fog lamps
temporarily come on on both sides of the vehicle
if you turn the steering wheel in one direction
and then again in the other direction shortly
thereafter.
iThe corner-illuminating front fog lamps will
come on automatically depending on the steer-
ing angle and vehicle speed, even if you did not
switch on either turn signal. If the
corner-illuminating front fog lamps came on
automatically, they will also go out automatically
depending on the steering angle and vehicle
speed.
iThere may be a brief delay before the
corner-illuminating front fog lamps switch off.

152 Controls in detail
Lighting
1Front left reading lamp switch
2Rear interior lighting switch
3Automatic control switch
4Front interior lighting switch
5Front right reading lamp switch
6Front right interior lamp
7Front right reading lamp
8Front left reading lamp
9Front left interior lampAutomatic control
Deactivating
Press switch3.
The switch engages in the recessed
position.
The interior lighting and the locator
lighting (
page 179) remain switched
off even when you

unlock the vehicle

open a door

open the tailgate

remove the SmartKey from the
starter switchActivating
Press switch3.
The switch disengages from its
recessed position back to its original
position.
The interior lighting and the locator
lighting (
page 179) come on when
you

unlock the vehicle

open a door

open the tailgate

remove the SmartKey from the
starter switch
The interior lamps go out following an
adjustable time delay (
page 180).
!An interior lamp switched on manually does
not go out automatically.
Leaving an interior lamp switch in the ON
position for extended periods of time with the
engine turned off could result in a discharged
battery.
iThe interior lighting is factory-set to
automatic mode.
iIf a door remains open, the interior lamps
switch off automatically after approximately
5 minutes when the SmartKey is removed or in
starter switch position0.

166 Controls in detail
Control system
Audio menu
The functions in the
Audio menu operate
the audio equipment which you currently
have turned on.
If no audio equipment is currently turned
on, the message
Audio off appears in the
multifunction display.
The following functions are available:Selecting radio station
Turn on the COMAND system and
select radio. Refer to separate
COMAND system operating instruc-
tions.
Press buttonè orÿ repeatedly
until the currently tuned station
appears in the multifunction display.
1Waveband setting
2Station frequency
Press buttonk orj repeatedly
until the desired station is found.
The station search depends on the se-
lected setting in the
Vehicle submenu
of the control system (
page 183).
Pressing buttonk orj will
either start a frequency scan or select
the next stored radio station.Selecting satellite radio station*
(USA only)
The satellite radio is treated as a radio
application.
Select satellite radio with the
corresponding soft key on the
COMAND system.
1SAT mode
2Channel name or number
Press buttonk orj repeatedly
until the desired channel is found.
FunctionPage
Selecting radio station166
Selecting satellite radio station*
(USA only)166
Operating CD player167
iYou can only store new stations using the
corresponding feature on the radio. Refer to
separate COMAND system operating instruc-
tions.
You can also operate the radio in the usual
manner.

167 Controls in detail
Control system
Operating the CD player
Selecting CD track
Turn on the COMAND system and
select CD. Refer to separate COMAND
system operating instructions.
Press buttonè orÿ repeatedly
until the settings for the CD currently
being played appear in the multifunc-
tion display.1Current CD (for CD changer)
2Current track
Press buttonk orj repeatedly
until the desired track is selected.Selecting MP3-CD track
Turn on the COMAND system and se-
lect MP3. Refer to separate COMAND
system operating instructions.
Press buttonè orÿ repeatedly
until the settings for the MP3-CD
currently being played appear in the
multifunction display.
1MP3 mode
2Current track
Press buttonk orj repeatedly
until the desired track is selected.
iAdditional optional satellite radio equipment
and a subscription to satellite radio service pro-
vider are required for satellite radio operation.
Contact an authorized Mercedes-Benz Light
Truck Center for details and availability for your
vehicle.
For more information, refer to separate
COMAND system operating instructions.
iTo select a CD from the magazine, press a
number on the COMAND system key pad located
in the center console.