Page 265 of 498

263 Controls in detail
Driving systems
Switching the Parktronic system
on/off
The Parktronic system can be switched off
manually.
The Parktronic switch is located in the up-
per part of the center console (
page 27).
1Parktronic switch
2Indicator lamp
Switching off the Parktronic system
Press Parktronic switch1.
Indicator lamp2 comes on.Switching on the Parktronic system
Press Parktronic switch1 again.
Indicator lamp2 goes out.
Parktronic system malfunction
If only the red distance segments illumi-
nate and a acoustic warning sounds, there
is a malfunction in the Parktronic system.
The Parktronic system will automatically
switch off after 20 seconds and the indica-
tor lamp in the Parktronic switch comes
on.
Have the Parktronic system checked
by an authorized Mercedes-Benz
Center as soon as possible.If only the red distance segments illumi-
nate and no acoustic warning sounds, the
Parktronic system sensors are dirty or
there is an interference from other radio or
ultrasonic signals. The Parktronic system
will automatically switch off after 20 sec-
onds and the indicator lamp in the Park-
tronic switch comes on.
Switch off the ignition.
Clean the Parktronic system sensors
(page 350).
Switch on the ignition.
or
Check the Parktronic system operation
at another location to rule out interfer-
ence from outside radio or ultrasonic
signals.
iThe Parktronic system is automatically
switched on when the ignition is
switched on (
page 36).
Page 266 of 498
264 Controls in detailLoadingRoof rack
1TrimPreparing roof rack installation
Open trim1 at the trim strips in the
roof.
Secure the roof rack according to
manufacturer’s instructions for
installation.
Ski sack*
Unfolding and loading
1Handle
2Cover
3Armrest
Fold armrest3 down (arrow).
Pull handle1 and swing cover2
down.
Warning!
G
Only use roof racks approved by
Mercedes-Benz for your vehicle model to
avoid damage to the vehicle. Follow manu-
facturer’s installation instructions.
!Load the roof rack in such a way that
the vehicle cannot be damaged while
driving.
Make sure
you can fully raise the tilt/sliding
sunroof*
you can fully open the trunk
Page 267 of 498
265 Controls in detail
Loading
4Hook and loop fastener
Unfasten hook and loop fastener4.
Pull ski sack into passenger compart-
ment and unfold.5Button
Open trunk lid.
Press button5.
The flap opens downward.
From trunk, slide skis into ski sack.Warning!
G
The ski sack is designed for up to four pairs
of skis. Do not load the ski sack with other
objects.
Always fasten the ski sack securely. In an
accident, an unfastened ski sack can cause
injury to vehicle occupants.
Page 268 of 498
266 Controls in detailLoading6Strap
Tighten strap6 by pulling at the loose
end (arrow) until the skis in the ski sack
are tightly secured.7Hook
8Eye
Connect hook7 to eye8 located on
center tunnel in front of rear seat
bench.
Tighten strap by pulling at the loose
end (arrow).Unloading and folding
Loosen both straps.
Disconnect hook7 from eye8.
Unload skis.
Close flap in trunk.
Fold and flatten ski sack lengthwise.
Place folded ski sack inside recess of
backrest.
Fasten hook and loop fastener
Close ski sack compartment cover.
Page 269 of 498

267 Controls in detail
Loading
Removal of ski sack
You can remove the ski sack for cleaning
or drying.
1Button
2Ski sack frame
3Flap
Open trunk lid.
Press button1.
The flap3 opens downward.
Press button1 firmly until ski sack
frame2 is released.
Pull ski sack frame2 with ski sack
out.Installing the ski sack
Install the ski sack in the reverse order.
Push ski sack frame2 with ski sack
inward until the ski sack frame snaps
into place.
Close flap3.
Close trunk lid.
Split rear bench seat
To expand the cargo area, you can fold
down the left and right rear seat backrests.
The two sections can be folded down sep-
arately.
Warning!
G
Never drive vehicle with trunk open while
the ski sack is removed. Deadly carbon
monoxide (CO) gases may enter vehicle in-
terior, resulting in unconsciousness and
death.iTo prevent unauthorized persons from
access to the trunk, always close the
flap.
Warning!
G
When expanding the luggage compartment,
always fold the seat cushions fully forward.
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 cause injury
to vehicle occupants unless the items are
securely fastened in the vehicle.
Always use the cargo tie down rings
(page 271).
Page 270 of 498
268 Controls in detailLoadingFolding the backrest forward
The release handle1 is located in the
trunk.
Pull release handle1.
Fully retract and fold rearward head re-
straint (
page 116).
Pull release handle2.
Fold seat cushion3 forward.
Fold rear seat backrests4 forward.
Page 271 of 498

269 Controls in detail
Loading
Setting up rear seat bench
Fold backrest4 rearward until it en-
gages.
Fold seat cushions3 rearward until it
locks into position.
If a backrest is not locked into position,
a red indicator5 or6 will be visible.
Check for secure locking by pushing
and pulling on the backrest.
Loading instructions
The total load weight including vehicle oc-
cupants and luggage/cargo should not ex-
ceed the load limit or vehicle capacity
weight indicated on the corresponding
placard located on the driver’s door B-pil-
lar.
The handling characteristics of a fully load-
ed vehicle depend greatly on the load dis-
tribution. It is therefore recommended to
load the vehicle according to the illustra-
tions shown, with the heaviest items being
placed towards the front of the vehicle.
Warning!
G
If a red indicator is visible with the backrest
up, then the backrest is not properly locked
into position.
Always lock backrest in its upright position
when rear seat bench is occupied, or the ex-
tended trunk compartment is not in use.
Check for secure locking by pushing and
pulling on the backrest.
In an accident, during hard braking or sud-
den maneuvers, loose items will be thrown
around inside the vehicle, and cause injury
to vehicle occupants unless the items are
securely fastened in the vehicle.
To help avoid personal injury during a colli-
sion or sudden maneuver, exercise care
when transporting cargo.iTo prevent unauthorized persons from
access to the trunk, always lock back-
rest in its upright position.
Page 272 of 498

270 Controls in detailLoadingAlways place items being carried against
front or rear seat backrests, and fasten
them as securely as possible.
The heaviest portion of the cargo should al-
ways be kept as low as possible since it in-
fluences the handling characteristics of
the vehicle.
Warning!
G
Always fasten items being carried as secure-
ly as possible.
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, exercise care
when transporting cargo. Put luggage or car-
go in the trunk if possible.
Never drive vehicle with trunk open. Deadly
carbon monoxide (CO) gases may enter ve-
hicle interior resulting in unconsciousness
and death.
iThe trunk is the preferred place to carry
objects.
The enlarged cargo area should only be
used for items which do not fit in the
trunk alone.