242 Controls in detailPower tilt/sliding sunroof*Warning!
G
When closing the tilt/sliding sunroof, make
sure that there is no danger of anyone being
harmed by the closing procedure.
If the tilt/sliding sunroof encounters an ob-
struction that blocks its path in a circum-
stance where you are closing the tilt/sliding
sunroof by moving the tilt/sliding sunroof
switch past the resistance point, or by
pressing and holding button‹ on the
SmartKey, by pressing and holding the lock
button (vehicles with KEYLESS-GO*) on the
door handle, the automatic reversal function
will not operate.
The opening/closing procedure of the
tilt/sliding sunroof can be immediately halt-
ed by releasing the switch or, if the switch
was moved past the resistance point and re-
leased, by moving the switch in any direc-
tion.
The tilt/sliding sunroof is made out of glass.
In the event of an accident, the glass may
shatter. This may result in an opening in the
roof.
In a vehicle rollover, occupants not wearing
their seat belts or not wearing them properly
may be thrown out of the opening. Such an
opening also presents a potential for injury
for occupants wearing their seat belts prop-
erly as entire body parts or portions of them
may protrude from the passenger compart-
ment.
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock your vehicle. Do not leave children un-
attended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehi-
cle equipment can cause an accident
and/or serious personal injury.!
To avoid damaging the seals, do not trans-
port any objects with sharp edges which can
stick out of the tilt/sliding sunroof.Do not open the tilt/sliding sunroof if there is
snow or ice on the roof, as this could result in
malfunctions.
The tilt/sliding sunroof can be opened or closed
manually should an electrical malfunction occur
(
page 478).
i
When the tilt/sliding sunroof is open, reso-
nance noises may result in addition to the usual
wind noises. They are caused by minimal pres-
sure changes in the passenger compartment. To
reduce or eliminate these noises, change the po-
sition of the tilt/sliding sunroof or open a side
window slightly.
i
You can also open or close the tilt/sliding
sunroof using the SmartKey or the
KEYLESS-GO* function, see “Summer opening
feature” (
page 239) and see “Convenience
closing feature” (
page 239).
i
Depending on the current position, the
tilt/sliding sunroof may also open or close when
the air recirculation button: on the control
panel of the climate control (
page 208) or
automatic climate control* (
page 222) is
pressed and held.
243 Controls in detail
Power tilt/sliding sunroof*
Switch on the ignition (
page 40).
Opening and closing
To open, close, raise, or lower the
tilt/sliding sunroof, move the sunroof
switch to the resistance point in the
required direction of arrows1to4
(page 241).
Release the sunroof switch when the
tilt/sliding sunroof has reached the de-
sired position.Fully opening (Express-open) and
closing (Express-close)
To fully open or close the tilt/sliding
sunroof, move the sunroof switch past
the resistance point in the required
direction of arrows1to2
(page 241) and release.
The tilt/sliding sunroof opens or closes
completely.
Stopping the power tilt/sliding sunroof
during Express-open
Move the sunroof switch in any direc-
tion.
The movement of the tilt/sliding sun-
roof stops.
i
If the movement of the tilt/sliding sunroof is
blocked during the closing procedure, the
tilt/sliding sunroof will stop and reopen slightly.
Warning!
G
If the tilt/sliding sunroof encounters an ob-
struction that blocks its path in a circum-
stance where you are closing the tilt/sliding
sunroof by moving the tilt/sliding sunroof
switch past the resistance point, or by
pressing and holding button‹ on the
SmartKey, by pressing and holding the lock
button (vehicles with KEYLESS-GO*) on the
door handle, the automatic reversal function
will not operate.
The opening/closing procedure of the
tilt/sliding sunroof can be immediately halt-
ed by releasing the switch or, if the switch
was moved past the resistance point and re-
leased, by moving the switch in any direc-
tion.
264 Controls in detailDriving systemsDownhill Speed Regulation (DSR)For more information, see “Off-road driv-
ing” (
page 333).
The DSR is an aid for driving downhill. DSR
regulates your vehicle’s speed when driv-
ing downhill to the value set in the control
system (page 179). The steeper the
downhill gradient is, the greater the brake
application. On flat road surfaces, DSR
brakes only slightly or not at all.
DSR regulates the vehicle’s speed in auto-
matic transmission positionsD, orR.
You can drive slower or faster than the set
speed at any time by braking the vehicle or
depressing the accelerator pedal.
Warning!
G
Downhill Speed Regulation is a convenience
system designed to assist the driver during
vehicle operation. The system must be set
to be appropriate for the topographical and
weather conditions encountered which can
change quickly. The driver is and must
remain at all times responsible for the vehi-
cle speed and for safe brake operation.
Depending on the programmed speed
(page 179), actual vehicle speed and gra-
dient, switching on the DSR while driving
can cause the vehicle to slow down rapidly
and you may hear a sound which is caused
by the activation of the vehicle’s brake sys-
tem through the DSR. Sudden and unex-
pected deceleration can result in loss of
vehicle control, causing an accident and/or
serious personal injury to you and others.
Do not switch on the DSR in a circumstance
where rapid deceleration could result in a
loss of vehicle control.
i
In addition, make use of the engine’s braking
effect by shifting the automatic transmission
into a lower gear.
i
Whenever DSR is switched on, DSR will use
the programmed default speed to regulate the
vehicle’s speed. The default speed programmed
at the factory is 4 mph (Canada: 6 km / h). The
default speed can be reprogrammed using the
control system (
page 179). The next time DSR
is switched on, DSR will use the newly pro-
grammed default speed to regulate the vehicle’s
speed.
Once DSR is switched on, you can adjust the set
speed using the cruise control lever
(
page 255). Keep in mind that adjusting the
set speed using the cruise control lever with DSR
switched on will not change the programmed
default speed. If DSR is switched off and then
switched on again, DSR will use the programmed
default speed.
Depending on the road surface and level of
downhill grade, the DSR may not be able to
maintain the set speed. To maintain the set
speed, apply the brakes if necessary.
278 Controls in detailDriving systemsSwitching off
Press Parktronic switch1.
Indicator lamp2 comes on.
Switching on
Press Parktronic switch1 once more.
Indicator lamp2 goes out.Parktronic system* malfunction
If only the red distance segments illumi-
nate and an acoustic warning sounds,
there is a malfunction in the Parktronic
system. The Parktronic system will auto-
matically switch off after 20 seconds and
the indicator lamp in the Parktronic switch
comes on.
Have the Parktronic system checked
by an authorized Mercedes-Benz Light
Truck Center as soon as possible.
If only the red distance segments illumi-
nate and no acoustic warning sounds, the
Parktronic system sensors are dirty (e.g.
slush, snow or ice) or there is an interfer-
ence from other radio or ultrasonic signals
(e.g. working jackhammers, car wash or
the air brakes of trucks). The Parktronic
system will automatically switch off after
20 seconds and the indicator lamp in the
Parktronic switch comes on.
Switch off the ignition (
page 40).
Clean the Parktronic system sensors
(page 408).
Switch on the ignition (
page 40).
or
Check the Parktronic system operation
at another location to rule out interfer-
ence from outside radio or ultrasonic
signals.
i
The Parktronic system switches on
automatically when you switch on the ignition
(
page 40).
Vehicles with original equipment Mercedes-Benz
Trailer Hitch Kit:
The rear Parktronic sensor will automatically
disengage when towing a trailer.
279 Controls in detail
Driving systems
Rear view camera*Warning!
G
The rear view camera is only an aid and may
display obstacles from a distorted perspec-
tive or inaccurately, or may not display ob-
stacles at all. The rear view camera does not
relieve you of the responsibility to be cau-
tious, take care and pay careful attention.
The rear view camera may not show objects
which are:
very close to the rear bumper
under the rear bumper
above the tailgate handle
You are responsible for safety at all times
and must continue to pay attention to the
immediate surroundings when parking and
maneuvering. This includes the area behind,
in front of and beside the vehicle. Otherwise
you could endanger yourself or others.
Warning!
G
Make sure that no persons or animals are in
or near the area in which you are
parking/maneuvering. Otherwise, they
could be injured.Warning!
G
The rear view camera either will not function
or will not function to its full capability if:
the tailgate is open
it is raining very hard, snowing or foggy
it is night or you are parking/maneuver-
ing your vehicle in an area where it is
very dark
the camera is exposed to a very bright
white light
the immediate surroundings are illumi-
nated with fluorescent light (the display
may flicker)
there is a sudden change in tempera-
ture, e.g. if you drive into a heated ga-
rage from the cold (lens condensation)
the camera lens is dirty or covered
the rear of your vehicle is damaged
In this case, have the position and set-
ting of the camera checked by a quali-
fied specialist workshop.
Mercedes-Benz recommends that you
visit a Mercedes-Benz Light Truck
Center for this purpose.
Do not use the rear view camera in these sit-
uations. Otherwise you could injure yourself
or others and/or damage property including
your vehicle while parking/maneuvering.
281 Controls in detail
Loading
Loading
Carriers*
Roof railsFor further information, contact your
authorized Mercedes-Benz Light Truck
Center.
Loading instructions
Warning!
G
Only use carriers* when the basic carrier
bars* have been completely mounted. The
left and right roof rails are only stabilized by
means of the basic carrier bars* mounted.
Follow the manufacturer’s installation
instructions. Otherwise, an improperly at-
tached carrier system or its load could be-
come detached from the vehicle.
Do not exceed the maximum roof load of
220 lb (100 kg).
Take into consideration that when the roof is
loaded, the handling characteristics are dif-
ferent from those when operating the vehi-
cles without a roof loaded.
!
Load the carriers* in such a way that the
vehicle cannot be damaged while driving.
Make sure
the tailgate can be completely opened
the tilt/sliding sunroof can be completely
raised at the rear
Warning!
G
Always fasten items being carried as secure-
ly as possible using cargo tie-down rings and
fastening materials appropriate for the
weight and size of the load.
In an accident, during hard braking or sud-
den maneuvers, loose items will be thrown
around inside the vehicle, and can cause in-
jury to vehicle occupants unless the items
are securely fastened in the vehicle.
To help avoid personal injury during a colli-
sion or sudden maneuver, always use tie
down rings, and if so equipped, always use
partition net* when transporting cargo.
Never drive vehicle with the tailgate open.
Deadly carbon monoxide (CO) gases may
enter vehicle interior resulting in uncon-
sciousness and death.
284 Controls in detailLoadingHooks
Four hooks are located on the rear com-
partment trim panels, two on each side.
1Hook
Use the hooks to secure light weight items
only. The maximum permissible weight per
hook is 9 lbs (4 kg).
Expanding cargo compartment
You can separately fold the left and right
rear seat backrests to expand the cargo
compartment.
Folding the rear seat backrest forwardWarning!
G
When expanding the cargo compartment,
always fully fold the corresponding seats
and, if so equipped, always use the partition
net* (
page 287) when transporting cargo.
Unless you are transporting cargo, the back-
rests must remain properly locked in the up-
right position.
In an accident, during hard braking or sud-
den maneuvers, loose items will be thrown
around inside the vehicle, and can cause
injury to vehicle occupants unless the items
are securely fastened in the vehicle.
Always use the cargo tie down rings
(
page 283).
Warning!
G
Never drive the vehicle with the tailgate
open. Deadly carbon monoxide (CO) gases
may enter vehicle interior resulting in un-
consciousness and death.!
Always release the seat cushion and fold it
up before folding the seat backrest forward. The
covering on the seat backrest may otherwise be
damaged.
When the seat backrest are folded forward, the
front seats may not be moved to the rearmost
position. Otherwise you could damage the front
and second-row seats.
291 Controls in detail
Loading
Inserting the cargo tie-down ring in the
mounting element
1Cargo tie-down ring
2Mounting element
Turn mounting element2 in the cargo
rail toN.
Insert cargo tie-down ring1 into
mounting element2.
Turn mounting element2 until it en-
gages in the ‹position.
You should be able to feel the mounting
element engage in the cargo rail.
Belt reel
1Belt reel
2Mounting element
3Locking button
Insert two mounting elements2 into a
cargo rail.
Turn mounting element2 in the cargo
rail toN.
Insert belt reel1 into mounting
element2.
Turn mounting element2 in the cargo
rail until it engages in the‹ posi-
tion.
You should be able to feel the mounting
element engage in the cargo rail.
Press locking button3 on the belt
reel1 and pull cargo net out in direc-
tion of arrow.
Warning!
G
The cargo tie-down rings should be subject
to equal loads. Make sure to comply with
the information provided in the loading in-
structions (
page 281).
i
The belt reel can be used to tighten
light-weight loads against the side wall of the
cargo compartment, thus securing them from
slipping.