
ProblemPossible causes/consequences andMSolutions
XLeave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
XCheck the coolant level and add coolant, observing the warning
notes (
Ypage 311).
XIf you have to add coolant frequently, have the engine cooling
system checked.
XMake sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
XAt coolant temperatures below 248 ‡ (120 †), drive to the
nearest qualified specialist workshop.
XAvoid heavy loads on the engine as you do so, e.g. driving in
mountainous terrain and stop-start traffic.
Driving systems
ProblemPossible causes/consequences and MSolutions
·
The red distance warn-
ing lamp lights up while
the vehicle is in motion.
A warning tone also
sounds.You are approaching a vehicle or a stationary obstacle in your line
of travel at too high a speed.
XBe prepared to brake immediately.
XPay careful attention to the traffic situation. You may have to
brake or take evasive action.
For further information about the distance warning function of
COLLISION PREVENTION ASSIST PLUS, see (
Ypage 66).
Warning and indicator lamps in the instrument cluster277
On-board computer and displays
Z

Stowage compartment in front of the arm-
rest (vehicles with automatic transmis-
sion)
XTo open:press the marking on cover :.
iYou can remove the non-slip mat and the
insert for cleaning. When removing the
insert you will have to overcome some
slight resistance.
Stowage compartment under the armrest
XTo open: on vehicles with movable armr-
ests, make sure that the armrest is in the
rearmost position.
XPress button :and fold the armrest up.
Depending on the vehicle equipment, the
armrest can be moved backwards or forwards
in a longitudinal direction.
Depending on the vehicle's equipment, the
following may be in the stowage compart-
ment: a multimedia connector unit with an SD
card slot and 2 USB ports, e.g. for use with an
iPod
®, iPhone®or MP3 player; see the sepa-
rate operating instructions. Stowage compartment under the driver's
seat and front-passenger seat
GWARNING
If you exceed the maximum load for the stow- age compartment, the cover may not be able
to restrain the items. Items may be thrown out
of the stowage compartment and hit vehicle
occupants. There is a risk of injury, particu-
larly in the event of sudden braking or a sud-
den change in direction.
Never exceed the maximum permissible load
for the stowage compartment. Stow and
secure heavy objects in the cargo compart-
ment.
The maximum permissible load of the stow-
age compartment is 2.6 lbs (1.5 kg).
XTo open: pull handle :up and fold
cover ;forwards.
Stowage space in the rear
Stowage compartment in the rear center
console
282Stowage areas
Stowage and features

XInsert the seat belt into seat-belt holder:.
Folding the rear seat backrest back
!Make sure that the seat belt does not
become trapped when folding the rear seat
backrest back. Otherwise, it could be dam-
aged.
XMove the driver's or front-passenger seat
forward if necessary.
XFold seat backrest :back until it engages.
Red lock status indicator ;is no longer
visible.
XAdjust the head restraints if necessary
(
Ypage 106).
XMove the driver's or front-passenger seat
back if necessary.
Adjusting the angle of the rear seat backr-
ests (cargo position)
Vehicles with the cargo compartment pack-
age: to enlarge the cargo compartment, you
can adjust the rear seat backrests to a 15°
steeper angle (cargo position).
XFold the seat backrest forward
(
Ypage 284).
XMove handle :in the direction of the
arrow.
XPush back seat backrest ;as far as han-
dle :until the backrest engages.
The backrest is now in the cargo position.
Securing cargo
Cargo tie-down rings
General notes
Observe the following notes on securing
loads:
RObserve the loading guidelines
(
Ypage 280).
RSecure the load using the cargo tie-down
rings.
RDistribute the load on the cargo tie-down
rings evenly.
RDo not use elastic straps or nets to secure
a load, as these are only intended as an
anti-slip protection for light loads.
RDo not route tie-downs across sharp edges or corners.
RPad sharp edges for protection.
Cargo compartment
:Cargo tie-down rings
Stowage areas285
Stowage and features
Z

Bag hook
GWARNING
The bag hooks cannot restrain heavy objects
or items of luggage. Objects or items of lug-
gage could be flung around and thereby hit
vehicle occupants when braking or abruptly
changing directions. There is a risk of injury.
Only hang light objects on the bag hooks.
Never hang hard, sharp-edged or fragile
objects on the bag hooks.
!The bag hook can bear a maximum load of
6.6lbs (3kg) and should not be used to
secure a load.
:Bag hook
Parcel shelf
!
The maximum load which may be placed
on the parcel shelf is 3.3 lbs (1.5 kg).
XTo remove: detach straps :from the tail-
gate.
XFold the parcel shelf downwards.
XPull the parcel shelf out to the rear ;.
XTo install:place the parcel shelf on the
guide rails on the left and right.
XPush the parcel shelf evenly forwards using both hands until it engages.
XFold the parcel shelf up.
XAttach straps :to the tailgate.
Cargo net
Important safety notes
GWARNING
On its own, the cargo net cannot secure or
restrain heavy objects, items of luggage and
heavy loads. You could be hit by an unsecured
load during sudden changes in direction,
braking or in the event of an accident. There is
an increased risk of injury or even fatal injury.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping over, e.g. by
using tie downs, even if you are using the
cargo net.
It is important to use a cargo net if you load
the vehicle with small objects above the seat
backrests. For safety reasons, always use a
cargo net when transporting loads.
Damaged cargo nets can no longer fulfill their
protective function and must be replaced.
Visit a qualified specialist workshop.
Attaching and tightening the cargo net
You have two options for hooking in the cargo
net:
Rwith cargo compartment enlargement: the
brackets are behind the B‑pillar and the
cargo tie-down rings to tension the net are
on the sides of the rear-compartment foot-
well.
Rwithout cargo compartment enlargement:
the brackets are behind the C-pillar and the cargo tie-down rings to tension the net are
in the cargo compartment (
Ypage 285).
286Stowage areas
Stowage and features

Sun visors
Overview
GWARNING
If the mirror cover of the vanity mirror is folded
up when the vehicle is in motion, you could be
blinded by incident light. There is a risk of an
accident.
Always keep the mirror cover folded down
while driving.
:Mirror light
;Bracket
=Retaining clip, e.g. for a car park ticket
?Vanity mirror
AMirror cover
Vanity mirror in the sun visor
Mirror light :only functions if the sun visor
is clipped into bracket ;and mirror cover A
has been folded up.
Glare from the side
XFold down sun visor :.
XPull sun visor:out of bracket ;.
XSwing sun visor :to the side.
Ashtray
Front ashtray
!The stowage space under the ashtray is
not heat resistant. Before placing lit ciga-
rettes in the ashtray, make sure that the ashtray is properly engaged. Otherwise, the
stowage space could be damaged.
XVehicles with a stowage compartment
cover:
press the lower section of cover :.
The stowage compartment opens.
XTo remove the insert: lift insert=up;
and out.
XTo re-install the insert: press insert=
into the holder until it engages.
iIf you remove the ashtray insert, you can
use the resulting compartment for stow-
age.
Rear-compartment ashtray
XTo open: pull cover =out by its top edge.
XTo remove: pull insert;by recess :in
the direction of arrow ?until it audibly
releases.
XLift insert ;up and out.
XTo install the insert: install insert;from
above into the holder and press down until
it engages.
290Features
Stowage and features

Cigarette lighter
GWARNING
You can burn yourself if you touch the hot
heating element or the socket of the cigarette lighter.
In addition, flammable materials can ignite if:
Rthe hot cigarette lighter falls
Ra child holds the hot cigarette lighter to
objects, for example
There is a risk of fire and injury.
Always hold the cigarette lighter by the knob.
Always make sure that the cigarette lighter is
out of reach of children. Never leave children
unsupervised in the vehicle.
Your attention must always be focused on the
traffic conditions. Only use the cigarette
lighter when road and traffic conditions per-
mit.
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 149).
XVehicles with a stowage compartment
cover: press the lower section of cover :.
The stowage compartment opens.
XPress in cigarette lighter ;.
Cigarette lighter ;will pop out automati-
cally when the heating element is red-hot.
12 V sockets
General notes
XTurn the SmartKey to position 1in the igni-
tion lock (
Ypage 149).
The sockets can be used for accessories with a maximum draw of 180 W (15A). Accesso-
rie sinclude suc hitem sas charger sfo rmobile
phones.
If you use th esockets fo rlon gperiod swhe n
th eengin eis switched off, th ebattery may
discharge.
An emergency cut-out ensures that th eon -
boar dvoltage doe sno tdrop to olow. If th eon -
boar dvoltage is to olow, th epower to th e
sockets is automatically cut .Thi sensures
that ther eis sufficien tpower to start th e
engine.
Socket in th efront-co mpartment center
console
XVehicles with a stowage compartment
cover: press the lower section of cover :.
The stowage compartment opens.
XLift up the cover of socket ;.
Features291
Stowagean d features
Z

System self-test
After you have switched on the ignition, the
system carries out a self-diagnosis.
A malfunction in the system has been detec-
ted if one of the following occurs:
RThe indicator lamp in the SOS button doesnot come on during the system self-test.
RThe indicator lamp in the FRoadside
Assistance button does not light up during
self-diagnosis of the system.
RThe indicator lamp in the ïMB Info call
button does not light up during self-diag-
nosis of the system.
RThe indicator lamp in one or more of the
following buttons continues to light up red
after the system self-diagnosis:
-SOS button
-F Roadside Assistance call button
-ïMB Info call button
RAfter the system self-diagnosis, the Inop‐
erativeorService Not Activated
message appears in the multifunction dis-
play.
If a malfunction is indicated as outlined
above, the system may not operate as expec-
ted. In the event of an emergency, help will
have to be summoned by other means.
Have the system checked at the nearest
authorized Mercedes-Benz Center or contact
the following service hotlines:
RUSA: Mercedes-Benz Customer Assistance
Center at 1-800-FOR-MERCedes
(1-800-367-6372) or 1-866-990-9007
RCanada: Customer Service at
1-888-923-8367
Emergency call
Important safety notes
GWARNING
It can be dangerous to remain in the vehicle,
even if you have pressed the SOS button in an emergency if:
Ryou see smoke inside or outside of the vehi-
cle, e.g. if there is a fire after an accident
Rthe vehicle is on a dangerous section of
road
Rthe vehicle is not visible or cannot easily beseen by other road users, particularly when
dark or in poor visibility conditions
There is a risk of an accident and injury.
Leave the vehicle immediately in this or simi-
lar situations as soon as it is safe to do so.
Move to a safe location along with other vehi-
cle occupants. In such situations, secure the
vehicle in accordance with national regula-
tions, e. g. with a warning triangle.
You must have a license agreement to acti-
vate the mbrace service. Make sure that your
system is activated and operational. To reg-
ister, press the ïMB Info call button. If
any of the steps mentioned are not carried
out, the system may not be activated.
If you have questions about the activation,
contact one of the following telephone hot-
lines:
RUSA: Mercedes-Benz Customer Assistance
Center at 1-800-FOR-MERCedes
(1-800-367-6372) or 1-866-990-9007
RCanada: Customer Service at
1-888-923-8367
General notes
An emergency call is dialed automatically if an air bag or Emergency Tensioning Device is
triggered.
iYou cannot end an automatically trig-
gered emergency call yourself.
An emergency call can also be initiated man-
ually.
Features293
Stowage and features
Z

Speed alert
You can define the upper speed limit, which
must not be exceeded by the vehicle.
If this selected speed is exceeded by the vehi-
cle, a message will be sent to the Customer
Assistance Center. The Customer Assistance Center then forwards this information to you.
You can select the way in which you receive
this information beforehand. Possible options
include text message, e-mail or an automated call.
The data you receive contains the following
information:
Rthe location where the speed limit was
exceeded
Rthe time at which the speed limit was
exceeded
Rthe selected speed limit which was excee-
ded
Geo fencing
Geo fencing allows you to select areas which
the vehicle should not enter or leave. You will
be informed if the vehicle crosses the boun-
daries of the selected areas. You can select
the way in which you receive this information beforehand. Possible options include text
message, e-mail or an automated call.
The area can be determined as either a circle
or a polygon with a maximum of ten corners.
You can specify up to ten areas simultane-
ously. Different settings are possible for each area.
USA only: these settings can be called up
under "Owners Online" at http://
www.mbusa.com.
Alternatively, you can trigger an MB Info call
and inform the customer service representa-
tive that you wish to activate geo fencing.
Currently inactive areas can be activated by
text message.
Triggering the vehicle alarm
With this function, you can trigger the vehi-
cle's panic alarm via text message. An alarm
sounds and the exterior lighting flashes.
Depending on the setting, the panic alarm
lasts five or ten seconds. Afterwards, the
alarm switches off.
Garage door opener
General notes
The HomeLink®garage door opener integra-
ted in the rear-view mirror allows you to oper-
ate up to three different door and gate sys-
tems.
Use the integrated garage door opener only
on garage doors that:
Rhave safety stop and reverse features and
Rmeet current U.S. federal safety standards
Once programed, the integrated garage door
opener in the rear-view mirror will assume the
function of the garage door system's remote
control. Please also read the operating
instructions for the garage door system.
When programming a garage door opener,
park the vehicle outside the garage. Do not
run the engine while programming.
Certain garage door drives are incompatible
with the integrated garage door opener. If you
have difficulty programing the integrated
garage door opener, contact an authorized
Mercedes-Benz Center.
Alternatively, you can call the following tele-
phone assistance services:
RUSA: Mercedes-Benz Customer Assistance
Center at 1-800-FOR-MERCedes
RCanada: Customer Service at
1-800-387-0100
RHomeLink®hotline 1-800-355-3515 (free
of charge)
More information on HomeLink
®and/or
compatible products is also available online
at http://www.homelink.com.
300Features
Stowage and features