Changing bulbsHigh-beam headlamps .................. .114
Child
Restraint system .............................. 58
Child seat
Forward-facing restraint system ...... 60
LATCH-type (ISOFIX) child seat
anchors ............................................ 59
On the front-passenger seat ............ 59
Rearward-facing restraint system .... 60
Child-proof locks
Important safety notes .................... 60
Children
Special seat belt retractor ............... 57
Cigarette lighter ................................ 245
Cleaning
Mirror turn signal ........................... 266
Climate control
Automatic climate control (3-
zone) .............................................. 119
Controlling automatically ............... 121
Cooling with air dehumidification .. 121
Defrosting the windows ................. 124
Defrosting the windshield .............. 123
Dual-zone automatic climate con-
trol ................................................. 118
General notes ................................ 117
Indicator lamp ................................ 121
Information about using auto-
matic climate control ..................... 120
Maximum cooling .......................... 123
Overview of systems ...................... 117
Problem with the rear window
defroster ........................................ 125
Problems with cooling with air
dehumidification ............................ 121
Rear control panel ......................... 119
Refrigerant ..................................... 317
Refrigerant filling capacity ............. 317
Setting the air distribution ............. 122
Setting the air vents ...................... 126
Setting the airflow ......................... 123
Setting the climate mode ............... 122
Setting the temperature ................ 122
Setting the temperature with 3-
zone automatic climate control ..... 122
Setting the temperature with dual-
zone automatic climate control ..... 122 Switching air-recirculation mode
on/off ............................................ 125
Switching on/off ........................... 120
Switching residual hea
t o
n/off ...... 125
Switching the rear window
defroster on/off ............................ 124
Switching the ZONE function on/
off .................................................. 123
Cockpit
Overview .......................................... 32
see Instrument cluster
COLLISION PREVENTION ASSIST
PLUS
Activating/deactivating ................. 197
Display message ............................ 205
Operation/notes .............................. 64
COMAND
Switching on/off ........................... 235
COMAND display
Cleaning ......................................... 268
Combination switch .......................... 110
Connecting a USB device
see also Digital Operator's Man-
ual .................................................. 234
Consumption statistics (on-board
computer) .......................................... 192
Controller ........................................... 235
Coolant (engine)
Checking the level ......................... 259
Display message ............................ 212
Filling capacity ............................... 316
Important safety notes .................. 316
Temperature gauge ........................ 189
Warning lamp ................................. 230
Cooling
see Climate control
Copyright ............................................. 31
Cornering light function
Display message ............................ 211
Function/notes ............................. 111
Cruise control
Activation conditions ..................... 151
Cruise control lever ....................... 151
Deactivating ................................... 152
Display message ............................ 218
Driving system ............................... 151
Function/notes ............................. 151
Important safety notes .................. 151
6Index
Indicator lampssee Warning and indicator lamps
Indicators
see Turn signals
Instrument cluster
Overview .......................................... 33
Settings ........................................ .198
Warning and indicator lamps ........... 33
Instrument cluster lighting .............. 199
Interior lighting
Automatic control .......................... 113
Delayed switch-off (on-board
computer) ...................................... 200
Overview ........................................ 113
Reading lamp ................................. 113
Setting the brightness of the dis-
play/switch (on-board computer) .. 199
iPod
®
see also Digital Operator's Man-
ual ..................................................2 34
J
Jack
Storage location ............................ 270
Using ............................................. 305
Jump starting (engine) ......................278
K
Key positions
KEYLESS-GO .................................. 128
SmartKey ....................................... 128
KEYLESS-GO
Deactivation ..................................... 73
Display message ............................ 224
Locking ............................................ 73
Removing the Start/Stop button ... 129
Start/Stop button .......................... 128
Starting the engine ........................ 130
Unlocking ......................................... 73
Kickdown
Driving tips ....................................1 37
Manual drive program .................... 140
Knee bag .............................................. 47
L
Lamps
see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating ................. 198
Display message ............................ 215
Function/information .................... 182
Lane Tracking package ..................... 180
LATCH-type (ISOFIX) child seat
anchors ................................................ 59
License plate lamp (display mes-
sage) ................................................... 211
Light function, active
Display message ............................ 211
Light sensor (display message) ....... 211
Lights
Activating/deactivating the inte-
rior lighting delayed switch-off ....... 200
Adaptive Highbeam Assist ............. 111
Automatic headlamp mode ............ 109
Cornering light function ................. 111
Hazard warning lamps ................... 111
High beam flasher .......................... 110
High-beam headlamps ................... 110
Light switch ................................... 109
Low-beam headlamps .................... 110
Parking lamps ................................ 110
Rear fog lamp ................................ 110
Setting the brightness of the dis-
play/switch (on-board computer) .. 199
Standing lamps .............................. 110
Switching the daytime running
lamps on/off (on-board com-
puter) ............................................. 199
Switching the exterior lighting
delayed switch-off on/off (on-
board computer) ............................ 199
Switching the surround lighting
on/off (on-board computer) .......... 199
Turn signals ................................... 110
see Interior lighting
see Replacing bulbs
Loading guidelines ............................ 240
Locking
see Central locking
Locking (doors)
Automatic ........................................ 79
Index11
Panic alarm
XTo activate:press the!button :for
approximately one second.
A visual and audible alarm is triggered if the
alarm system is armed.
XTo deactivate: press the!button :
again.
or
XInsert the SmartKey into the ignition lock.
or, on vehicles with KEYLESS‑GO:
XPress the Start/Stop button.
The SmartKey must be in the vehicle.
Occupant safety
Introduction to the restraint system
The restraint system can reduce the risk of vehi- cle occupants coming into contact with parts of
the vehicle's interior in the event of an accident.
Furthermore, the restraint system may also
reduce the forces exerted on the vehicle occu-
pants when an accident occurs.
The restraint system includes:
RSeat belt system
RAir bags
RChild restraint system
RChild seat securing system
The components of the restraint system work in
conjunction with each other. They can only offer
the intended level of protection if all vehicle
occupants:
Rare correctly wearing their seat belts.
(Ypage 43)
Radjust their seat and head restraint properly
(Ypage 96). The driver is also responsible for ensuring that
the steering wheel has been correctly posi-
tioned. Observe the information relating to the
correct driver's seat position (
Ypage 96).
Always ensure the air bag can inflate properly if
deployed (
Ypage 45).
An air bag supplements a correctly fastened
seat belt. As an additional safety device, the air
bag increases the level of protection for vehicle
occupants in the event of an accident. For exam-
ple, if the protection already provided by a cor-
rectly fastened seat belt will suffice, the air bags
are not deployed. Furthermore, only the air bags that would increase the degree of protection
afforded to the vehicle occupants in the event of
an accident are deployed. Seat belts and air
bags generally do not protect against objects
penetrating the vehicle from the outside.
Information on restraint system operation can
be found under "Triggering of Emergency Ten-
sioning Devices and air bags" (
Ypage 53).
See “Children in the vehicle” for information on
children traveling with you as well as vehicle
restraint systems (
Ypage 57).
Important safety notes
GWARNING
Modifications to the restraint system may
cause it to no longer work as intended. The
restraint system may then not perform its
intended protective function and may fail in an
accident or trigger unexpectedly, for example.
This poses an increased risk of injury or even fatal injury.
Never modify parts of the restraint system.
Never tamper with the wiring, the electronic
components or their software.
If it is necessary to modify an air bag system to
accommodate a person with disabilities, con-
tact an authorized Mercedes-Benz Center for
details. USA only: for further information con-
tact our Customer Assistance Center at
1-800-FOR-MERCedes (1‑800‑367‑6372).
Restraint system warning lamp
The functions of the restraint system are
checked after the ignition is switched on and at
40Occupant safety
Safety
The seat belt system comprises:
RSeat belts
REmergency Tensioning Devices for the front
seat belts and the outer seat belts in the rear
RSeat belt force limiters for the front seat belts
and the outer seat belts in the rear
If the seat belt is pulled by the seat belt extender
quickly or with a jerky movement, the belt
retractor locks. The belt strap cannot be extrac-
ted any further.
The Emergency Tensioning Device tightens the
seat belt in an accident, pulling the belt close
against the body. However it does not pull the
vehicle occupant back in the direction of the
backrest.
The Emergency Tensioning Device does not cor-
rect an incorrect seat position or the routing of
an incorrectly fastened seat belt.
When triggered, a seat belt force limiter helps to
reduce the force exerted by the seat belt on the
vehicle occupant.
The seat belt force limiters for the front seats are
synchronized with the front air bags, which
absorb part of the deceleration force. This can
reduce the force exerted on the vehicle occu-
pants during an accident.
!If the front-passenger seat is not occupied,
do not engage the seat belt tongue in the
buckle on the front-passenger seat. Other-
wise, in the event of an accident, the Emer-
gency Tensioning Device and front-passenger
front air bag may be triggered and would need
to be replaced.
Important safety notes
The use of seat belts and child restraint systems
is required by law in:
Rall 50 states
Rthe U.S. territories
Rthe District of Columbia
Rall Canadian provinces
Even where this is not required by law, all vehicle
occupants should correctly fasten their seat
belts before starting the journey.
GWARNING
If the seat belt is incorrectly fastened, it can-
not protect as intended. Furthermore, an
incorrectly fastened seat belt can cause addi-
tional injury, for example, in an accident, dur-
ing braking or when abruptly changing direc-
tion. This poses an increased risk of injury or
even fatal injury.
Make sure that all vehicle occupants are
seated properly with a correctly fastened seat belt.
GWARNING
The seat belt does not offer the intended level of protection if you have not moved the back-
rest to an almost vertical position. When brak-
ing or in the event of an accident, you could
slide underneath the seat belt and sustain
abdomen or neck injuries, for example. This
poses an increased risk of injury or even fatal injury.
Adjust the seat properly before beginning
your journey. Always ensure that the backrest
is in an almost vertical position and that the
shoulder section of your seat belt is routed
across the center of your shoulder.
GWARNING
Persons under 5 ft (1.50 m) in height cannot
fasten the seat belt correctly without an addi- tional suitable restraint system. If the seat
belt is incorrectly fastened, it cannot protect
as intended. Furthermore, an incorrectly fas-
tened seat belt can cause additional injury, for
example, in an accident, during braking or an
abrupt change of direction. This poses an
increased risk of injury or even fatal injury.
For this reason, always secure persons under
5 ft (1.50 m) in height in suitable restraint
systems.
If a child younger than twelve years old and
under 5 ft (1.50 m)in height is traveling in the
vehicle:
Ralways secure the child in a child restraint
system suitable for this Mercedes-Benz vehi-
cle. The child restraint system must be appro-
priate to the age, weight and size of the child
Ralways observe the instructions and safety
notes on "Children in the vehicle"
(
Ypage 57) in addition to the child restraint
42Occupant safety
Safety
Always make sure that the seat-belt extenderis retracted during a journey.
The seat-belt extender for the driver and front
passenger helps you fasten your seat belt. Seat-
belt extender =is extended when the respec-
tive door is closed and the SmartKey is turned to
position 1or 2in the ignition lock.
You can also extend seat-belt extender =with
seat-belt extender button ?.
XPress seat-belt extender button ?.
Seat-belt extender =extends.
Seat-belt extender =is retracted again if:
Rthe belt tongue is engaged in the seat belt
buckle.
Rthe belt tongue is not engaged in the seat belt
buckle within 60 seconds.
Rthe respective door is opened.
Rthe SmartKey is turned to position 0in the
ignition lock.
Ryou release the seat backrest and fold it for-
wards.
Rthe front-passenger seat is unoccupied after
approximately five seconds.
If you press seat-belt extender button ?after
this, seat-belt extender =will not extend.
Basic illustration
XAdjust the seat (Ypage 96).
The seat backrest must be in an almost ver-
tical position.
XPull the seat belt smoothly out of seat-belt
extender =and engage belt tongue ;into
belt buckle :.
The seat belt on the driver’s seat and the
front-passenger seat may be tightened auto-
matically, see "Belt adjustment"
(
Ypage 45).
XIf necessary, pull upwards on the shoulder
section of the seat belt to tighten the belt
across your body.
In order to attach the child restraint system
securely in the vehicle, the seat belts in the rear
are equipped with a special seat belt retractor.
Further information can be found under "Special
seat belt retractor" (
Ypage 57).
Automatic comfort-install feature
The front seat belts have an automatic comfort-
install feature. The automatic comfort-fit feature
reduces the retraction force of the seat belts.
The seat belts are thus routed more comfortably
for the driver and front passenger.
Releasing seat belts
!Make sure that the seat belt is fully rolled up.
Otherwise, the seat belt or belt tongue will be
trapped in the door or in the seat mechanism.
This could damage the door, the door trim
panel and the seat belt. Damaged seat belts
44Occupant safety
Safety
Prerequisites
To be classified correctly, the front passenger
must sit:
Rwith the seat belt fastened correctly
Rin an almost upright position with their back
against the seat backrest
Rwith their feet resting on the floor, if possible
If the front passenger does not observe these
conditions, OCS may produce a false classifica-
tion, e.g. because the front passenger:
Rtransfers their weight by supporting them-
selves on a vehicle armrest
Rsits in such a way that their weight is raised
from the seat cushion
If it is absolutely necessary to install a child
restraint system on the front-passenger seat, be
sure to observe the correct positioning of the
child restraint system. Never place objects
under or behind the child restraint system, e.g.
cushions. The entire base of the child restraint
system must always rest on the seat cushion of the front-passenger seat. The backrest of the
forward-facing child restraint system must lie as
flat as possible against the backrest of the front-
passenger seat.
The child restraint system must not touch the
roof or be subjected to a load by the head
restraint. Adjust the angle of the seat backrest
and the head restraint position accordingly.
Only then can OCS be guaranteed to function
correctly. Always observe the child restraint sys-
tem manufacturer's installation instructions.
Occupant Classification System opera-
tion (OCS)
PASSENGER AIRBAG OFF indicator lamp :
indicates whether the front-passenger front air
bag is disabled.
XTurn the SmartKey to position 1or 2in the
ignition lock, or in vehicles with KEYLESS-GO,
press the start/stop button once or twice.
The system carries out a self-diagnosis test.
The PASSENGER AIR BAG OFF indicator lamp
must light up for about six seconds.
The PASSENGER AIR BAG OFF indicator lamp
then shows the status of the front-passenger
front air bag. If the status of the front-passenger
front air bag changes whilst the vehicle is in
motion, an air bag display message may appear
in the instrument cluster (
Ypage 209). Always
observe the PASSENGER AIR BAG OFF indicator
lamp when the front-passenger seat is occu-
pied. Make sure that the status of the front-
passenger front air bag is correct before and
during a journey.
If the PASSENGER AIRBAG OFF indicator
lamp:
Rlights up, the front-passenger front air bag is
disabled. It will then not be deployed in the
event of an accident.
Rdoes not light up, the front-passenger front
air bag is enabled. If, in the case of an acci-
dent, all deployment criteria are met, the
front-passenger front air bag is deployed.
GWARNING
If the PASSENGER AIR BAG OFF indicator
lamp is lit, the front-passenger front air bag is
disabled. It will not be deployed in the event of
an accident and cannot perform its intended
protective function. A person in the front-
passenger seat could then, for example, come
into contact with the vehicle's interior, espe-
cially if the person is sitting too close to the
dashboard. This poses an increased risk of
injury or even fatal injury.
When the front-passenger seat is occupied,
always ensure that:
Rthe classification of the person in the front- passenger seat is correct and the front-
passenger front air bag is enabled or disa-
Occupant safety49
Safety
Z
Children in the vehicle
Important safety notes
Accident statistics show that children secured
in the rear seats are safer than children secured
in the front-passenger seat. For this reason,
Mercedes-Benz strongly advises that you install
a child restraint system on a rear seat. Children are generally better protected there.
If a child younger than twelve years old and
under 5 ft (1.50 m) in height is traveling in the
vehicle:
Ralways secure the child in a child restraint
system suitable for Mercedes-Benz vehicles.
The child restraint system must be appropri-
ate to the age, weight and size of the child
Rbe sure to observe the instructions and safety
notes in this section in addition to the child
restraint system manufacturer's installation
instructions
Rbe sure to observe the instructions and safetynotes on the "Occupant classification system
(OCS)" (
Ypage 48)
GWARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example:
Rrelease the parking brake.
Rshift the automatic transmission out of the
parking position P.
Rstart the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
GWARNING
If persons, particularly children are subjected to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle.
GWARNING
If the child restraint system is subjected to
direct sunlight, parts may get very hot. Chil-
dren may burn themselves on these parts,
particularly on the metal parts of the child
restraint system. There is a risk of injury.
If you leave the vehicle, taking the child with
you, always ensure that the child restraint
system is not exposed to direct sunlight. Pro- tect it with a blanket, for example. If the child
restraint system has been exposed to direct
sunlight, let it cool down before securing the
child in it. Never leave children unattended in
the vehicle.
Always ensure that all vehicle occupants have
their seat belts fastened correctly and are sitting
properly. Particular attention must be paid to
children.
Observe the safety notes on the seat belt
(
Ypage 42 )and the notes on correct use of seat
belts (Ypage 43).
A booster seat may be necessary to achieve
proper seat belt positioning for children over
41 lb s(18 kg) until they reach a height where a
three-point seat belt can be properly fastened
without a booster seat.
Special seat belt retractor
GWARNING
If the seat belt is released while driving, the
child restraint system will no longer be
secured properly. The special seat belt retrac- tor is disabled and the inertia real draws in a
portion of the seat belt. The seat belt cannot
be immediately refastened. There is an
increased risk of injury, possibly even fatal.
Stop the vehicle immediately, paying atten-
tion to road and traffic conditions. Reactivate
the special seat belt retractor and secure the
child restraint system properly.
All seat belts except the driver's seat belt are
equipped with a special seat belt retractor.
When activated, the special seat belt retractor
ensures that the seat belt will not slacken once
the child restraint system has been secured.
Children in the vehicle57
Safety
Z
You can thus avoid the risks that could arise as
a result of:
Ran incorrectly categorized person in the front-
passenger seat
Rthe unintentional deactivation of the front-
passenger front air bag
Rthe unsuitable positioning of the child
restraint system, e.g. too close to the dash-
board
Rearward-facing child restraint system
If it is absolutely necessary to install a rearward-
facing child restraint system on the front-
passenger seat, always make sure that the
front-passenger front air bag is deactivated.
Only if the PASSENGER AIR BAG OFF indicator
lamp is permanently lit (
Ypage 41) is the front-
passenger front air bag deactivated.
Always observe the child restraint system man-
ufacturer's installation and operating instruc-
tions.
Forward-facing child restraint system
If you secure a child in a forward-facing child
restraint system on the front-passenger seat,
always move the front-passenger seat as far
back as possible. The entire base of the child
restraint system must always rest on the seat
cushion of the front-passenger seat. The back-
rest of the child restraint system must lie as flat
as possible against the backrest of the front-
passenger seat. The child restraint system must
not touch the roof or be subjected to a load by
the head restraint. Adjust the angle of the seat
backrest and the head restraint position accord- ingly. Always make sure that the shoulder belt
strap is correctly routed from the seat-belt
extender of the front-passenger seat to the
shoulder belt guide on the child restraint sys-
tem. The shoulder belt strap must be routed for-
wards from the retracted seat-belt extender for
the front-passenger seat.
Always observe the child restraint system man-
ufacturer's installation and operating instruc-
tions.
Child-proof locks
Important safety notes
GWARNING
If children are traveling in the vehicle, they
could:
Ropen doors, thus endangering other people
or road users
Rexit the vehicle and be caught by oncoming
traffic
Roperate vehicle equipment and become
trapped
There is a risk of an accident and injury.
Always activate the child-proof locks and
override feature if children are traveling in the vehicle. When leaving the vehicle, always take
the key with you and lock the vehicle. Never
leave children unattended in the vehicle.
Override feature for the rear side windows
(
Ypage 61).
GWARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example:
Rrelease the parking brake.
Rshift the automatic transmission out of the
parking position P.
Rstart the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
GWARNING
If persons, particularly children are subjected to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle.
60Children in the vehicle
Safety