Dashboard fuse box ....................... 371
Fuse box in the cargo compart-
ment .............................................. 372
Fuse box in the engine compart-
ment .............................................. 371
Fuse box in the front-passenger
footwell .......................................... 371
Important safety notes .................. 370
G
Garage door openerClearing the memory ..................... 335
General notes ................................ 332
Important safety notes .................. 332
Opening/closing the garage doo r..3 35
Programming (button in the rear-
view mirror) ................................... 333
Synchronizing the rolling code ....... 333
Gasoline ............................................. 410
Genuine parts ...................................... 22
Glove box ...........................................3 07
H
HANDS-FREE ACCESS.......................... 94
Hazard warning lamps ......................127
Head restraints
Adjusting (electrically) ................... 112
Adjusting (manually) ......................1 11
Adjusting (rear) .............................. 112
Adjusting the fore-and-aft posi-
tion manually ................................. 111
General notes ................................ 111
Important safety notes .................. 111
Installing/removing (rear) .............. 112
Head-up display
Adjusting the brightness ................ 255
Displays and operating .................. 242
Function/notes .............................2 41
Important safety notes .................. 241
Selecting displays .......................... 254
Setting the position ....................... 254
Storing settings (memory func-
tion) ............................................... 122
Headlamps
Cleaning system (notes) ................ 413
Fogging up ..................................... 128 see Automatic headlamp mode
Heating
see Climate control
High beam flasher .............................1 26
High-beam headlamps
Adaptive Highbeam Assist ............. 127
Changing bulbs .............................. 131
Display message ............................ 274
Switching on/off ........................... 126
Hill start assist .................................. 157
HOLD function
Activating ....................................... 195
Activation conditions ..................... 194
Deactivating ................................... 195
Display message ............................ 282
Function/notes .............................1 94
General notes ................................ 194
Hood
Closing ...........................................3 39
Display message ............................ 288
Important safety notes .................. 338
Opening ......................................... 338
Horn ...................................................... 32
HUD
see Head-up display
Hydroplaning ..................................... 180
I
Ignition lock
see Key positions
Immobilizer .......................................... 78
Indicator and warning lamps
COLLISION PREVENTION ASSIST
PLUS .............................................. 301
Indicator lamps
see Warning and indicator lamps
Insect protection on the radiator .... 339
Instrument cluster
Overview .......................................... 33
Warning and indicator lamps ........... 34
Instrument cluster lighting .............. 238
Interior lighting
Control ...........................................1 29
Emergency lighting ........................ 130
Overview ........................................ 129
Reading lamp ................................. 129
Index11
Fuel ................................................ 409
Important safety notes .................. 409
Refrigerant (air-conditioning sys-
tem) ............................................... 414
Washer fluid ................................... 413
Settings
Factory (on-board computer) ......... 256
On-board computer ....................... 252
Side impact air bag ............................. 50
Side marker lamp (display mes-
sage) ................................................... 274
Side windows
Cleaning ......................................... 347
Convenience closing feature ............ 99
Convenience opening feature .......... 99
Important safety information ........... 98
Opening/closing .............................. 98
Problem (malfunction) ................... 101
Resetting ....................................... 100
Reversing feature ............................. 98
Ski and snowboard bag .................... 309
Sliding sunroof
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery ....................... 86
Changing the programming ............. 84
Checking the battery ....................... 86
Convenience closing feature .......... 100
Convenience opening feature .......... 99
Display message ............................ 290
Door central locking/unlocking ....... 83
Important safety notes .................... 82
KEYLESS-GO start function .............. 84
Loss ................................................. 87
Mechanical key ................................ 85
Overview .......................................... 82
Positions (ignition lock) ................. 153
Problem (malfunction) ..................... 87
Starting the engine ........................ 155
Smartphone
Starting the engine ........................ 156
Snow chains ...................................... 377
Socket (12 V)
Cargo compartment ....................... 322
Center console .............................. 321
General notes ................................ 321
Rear compartment ......................... 321 Special seat belt retractor
.................. 61
Specialist workshop ............................ 27
Speed, controlling
see Cruise control
Speedometer
Activating/deactivating the addi-
tional speedometer ........................ 255
Digital ............................................ 245
In the Instrume
nt cluster ................. 33
Segments ...................................... 238
Selecting the display unit ............... 255
see Instrument cluster
Standing lamps
Display message ............................ 274
Switching on/off ........................... 126
Start/Stop button
Starting the engine ........................ 156
Start/stop function
see ECO start/stop function
Starting (engine) ................................ 155
STEER CONTROL .................................. 78
Steering
Display message ............................ 289
Warning lamps ............................... 303
Steering Assist and Stop&Go Pilot
(DISTRONIC PLUS)
Display message ............................ 284
Steering assistant STEER CON-
TROL
see STEER CONTROL
Steering wheel
Adjusting (electrically) ................... 116
Adjusting (manually) ...................... 115
Button overview ............................... 35
Buttons (on-board computer) ......... 239
Cleaning ......................................... 350
EASY ENTRY/EXIT feature ............. 117
Important safety notes .................. 115
Steering wheel heating .................. 116
Storing settings (memory func-
tion) ............................................... 122
Steering wheel heating
Problem (malfunction) ................... 117
Switching on/off ........................... 116
Steering wheel paddle shifters ........ 167
Stowage areas ................................... 306
Index17
Cockpit
FunctionPage
:Steering wheel paddle
shifters
167
;Combination switch126
=Horn
?Instrument cluster33
ADIRECT SELECT lever162
BClimate control systems140
COverhead control panel39
DControl panel for Audio 20/
COMAND and vehicle func-
tions
37
EIgnition lock153
Start/Stop button153
FAdjusts the steering wheel115
GCruise control lever182
FunctionPage
HElectric parking brake174
IDiagnostics connection26
JOpens the hood338
KLight switch124
LControl panel for:
Activating Steering Assist192
Switching on Active Lane
Keeping Assist
225
Deactivating PARKTRONIC198
Switching on the 360° cam-
era
210
Switching on the head-up
display
241
Vehicles without a driver
assistance system: map/
coin holder
32Cockpit
At a glance
Useful information
i
This Operator's Manual describes all
models and all standard and optional equip-
ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
iRead the information on qualified special-
ist workshops (
Ypage 27).
Panic alarm
XTo activate: press!button :for at
least one second.
A visual and audible alarm is triggered if the
alarm system is armed.
XTo deactivate: press!button :
again.
or
XInsert the SmartKey into the ignition lock.
or, in vehicles with KEYLESS-GO start-func-
tion or 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
vehicle occupants coming into contact with
parts of the vehicle's interior in the event of
an accident. The restraint system can also
reduce the forces to which vehicle occupants
are subjected during an accident.
The restraint system comprises:
RSeat belt system
RAir bags
RChild restraint system
RChild seat securing systems
The components of the restraint system work in conjunction with each other. They can only
deploy their protective function if, at all times,
all vehicle occupants:
Rhave fastened their seat belts correctly
(
Ypage 45)
Rhave adjusted their seat and head restraint
properly (
Ypage 109).
As the driver, you also have to make sure that
the steering wheel is adjusted correctly.
Observe the information relating to the cor-
rect driver's seat position .
You also have to make sure that an air bag can
inflate properly if deployed (
Ypage 48).
An air bag supplements a correctly worn seat
belt. As an additional safety device, the air
bag increases the level of protection for vehi-
cle occupants in the event of an accident. For
example, if, in the event of an accident, the
protection offered by the seat belt is suffi-
cient, the air bags are not deployed. When an
accident occurs, only the air bags that
increase protection in that particular accident
situation are deployed. However, seat belts
and air bags generally do not protect against objects penetrating the vehicle from the out-
side.
Information on restraint system operation
can be found under "Triggering of the Emer-
gency Tensioning Devices and air bags"
(
Ypage 57).
42Occupant safety
Safety
See "Children in the vehicle" for information
on infants and children traveling with you in
the vehicle restraint systems for infants and
children (
Ypage 60).
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 regular intervals while the engine is run-
ning. Therefore, malfunctions can be detec-
ted in good time.
The 6 restraint system warning lamp in
the instrument cluster lights up when the igni-
tion is switched on. It goes out no later than a
few seconds after the vehicle is started. The
components of the restraint system are in
operational readiness.
A malfunction has occurred if the 6
restraint system warning lamp:
Rdoes not light up after the ignition is
switched on
Rdoes not go out after a few seconds with
the engine running
Rlights up again while the engine is running
GWARNING
If restraint system is malfunctioning, restraint
system components may be triggered unin-
tentionally or might not be triggered at all in
the event of an accident with a high rate of
vehicle deceleration. This can affect the Emer- gency Tensioning Device or air bag, for exam-
ple. This poses an increased risk of injury or
even fatal injury.
Have the restraint system checked and
repaired in a qualified specialist workshop as
soon as possible.
PASSENGER AIR BAG indicator lamp
PASSENGER AIR BAG ON indicator lamp :
and PASSENGER AIR BAG OFF indicator
lamp ;are part of the Occupant Classifica-
tion System (OCS).
The indicator lamps display the status of the
front-passenger front air bag.
RPASSENGER AIR BAG ON lights up: the
front-passenger front air bag is enabled. If,
in the event of an accident, all deployment
criteria are met, the front-passenger front
air bag is deployed.
RPASSENGER AIR BAG OFF lights up: the
front-passenger front air bag is deactiva-
ted. It will then not be deployed in the event of an accident.
Occupant safety43
Safety
Z
The shoulder section of the seat belt must
always be routed across the center of the
shoulder. Adjust the belt outlet if necessary.
XTo raise:slide the belt outlet upwards.
The belt outlet will engage in various posi-
tions.
XTo lower: hold belt outlet release ?and
slide belt outlet downwards.
XLet go of belt outlet release ?in the
desired position and make sure that the
belt outlet engages.
All seat belts except the driver's seat belt are
equipped with a special seat belt retractor to
securely fasten child restraint systems in the
vehicle. Further information can be found
under "Special seat belt retractor"
(
Ypage 61).
Seat belt for the center rear seat
If the left-hand rear seat backrest is folded
down and back up again, the rear center seat
belt may lock. The seat belt can then not be
pulled out.
XTo release the rear center seat belt: pull
the seat belt out approximately 1 in
(25 mm) at the belt outlet on the backrest
and then release it again.
The seat belt is retracted and released.
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. Dam-
aged seat belts can no longer fulfill their
protective function and must be replaced.
Visit a qualified specialist workshop.
Basic illustration
XPress release button
:, hold belt
tongue ;firmly and guide it back towards
belt outlet =.
Seat belt adjustment
The seat-belt adjustment is an integral part of
the PRE-SAFE®convenience function. This
function adjusts the driver's and front-
passenger seat belt to the upper body of the
occupants.
The belt strap is tightened slightly when:
Rthe belt tongue is engaged in the buckle
and
Rthe ignition is switched on
The seat-belt adjustment will apply a certain
retraction force if any slack is detected
between the vehicle occupant and the seat
belt. Do not hold on to the seat belt tightly
while it is adjusting.
You can switch the seat-belt adjustment on
and off using COMAND or Audio 20. Informa- tion on activating and deactivating the seat-
belt adjustment function can be found in the
Occupant safety47
Safety
Z
rest and the head restraint position accord-
ingly.
Only then can OCS be guaranteed to function
correctly. Always observe the child restraint
system manufacturer's installation instruc-
tions.
Occupant Classification System opera-
tion (OCS)
:PASSENGER AIR BAG ON indicator lamp
;PASSENGER AIR BAG OFF indicator lamp
The indicator lamps inform you whether the
front-passenger front air bag is deactivated or
enabled.
XPress the Start/Stop button once or twice,
or turn the SmartKey to position 1or 2in
the ignition lock.
The system carries out self-diagnostics.
The PASSENGER AIR BAG OFF and
PASSENGER AIR BAG ON indicator lamps
must light up simultaneously for approx-
imately six seconds.
The indicator lamps display the status of the
front-passenger front air bag.
RPASSENGER AIR BAG ON lights up: the
front-passenger front air bag is enabled. If,
in the event of an accident, all deployment
criteria are met, the front-passenger front
air bag is deployed.
RPASSENGER AIR BAG OFF lights up: the
front-passenger front air bag is deactiva-
ted. It will then not be deployed in the event of an accident. If the status of the front-passenger front air
bag changes while the vehicle is in motion, an
air bag display message appears in the instru-
ment cluster (
Ypage 271). When the front-
passenger seat is occupied, always pay atten-
tion to the PASSENGER AIR BAG ON and
PASSENGER AIR BAG OFF indicator lamps. Be
aware of the status of the front-passenger
front air bag both before and during the jour-
ney.
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-
bled in accordance with the person in the
front-passenger seat
Rthe front-passenger seat has been moved
back as far back as possible.
Rthe person is seated correctly.
Make sure, both before and during the jour-
ney, that the status of the front-passenger
front air bag is correct.
GWARNING
If you secure a child in a rearward-facing child
restraint system on the front-passenger seat
and the PASSENGER AIR BAG ON indicator
lamp is lit up, the front-passenger front air bag may deploy in an accident. The child could be
struck by the air bag. This poses an increased
risk of injury or even fatal injury.
52Occupant safety
Safety
Deployment of Emergency Tensioning
Devicesan dair bags
Important safet ynotes
GWARNING
The air bag parts are hot after an air bag has
bee ndeployed .There is aris kof injury.
Do no ttouch th eair bag parts .Hav e a
deployed air bag replaced at aqualified spe -
cialis tworkshop as soo nas possible.
GWARNING
A deployed air bag no longer offers any pro -
tection and canno tprovid eth eintended pro -
tection in an accident. There is an increase d
ris kof injury.
Hav eth evehicle towed to aqualified special-
ist workshop in order to hav e adeployed air
bag replaced.
It is important fo ryour safet yand that of your
passenger to hav edeployed air bags replaced
and to hav eany malfunctionin gair bags
repaired. Thi swill help to mak esur eth eair
bags continue to perform their protective
function fo rth evehicle occupant sin th e
event of acrash .
GWARNING
Pyrotechnic Emergency Tensioning Devices
that hav ebee ndeployed are no longer opera-
tional and are unable to perform their inten-
ded protective function .Thi sposes an
increase dris kof injury or eve nfatal injury.
Therefore, hav epyrotechni cEmergency Ten -
sioning Devices whic hhav ebee ntriggere d
immediately replaced at aqualified specialis t
workshop .
An electric moto ris used by PRE-SAF E®to
trigger th etightenin gof th eseat belt in haz -
ardous situations. Thi sprocedur eis reversi-
ble.
If Emergency Tensioning Devices are trig-
gered or air bags are deployed ,you will hear a
bang, and asmall amount of powder may also be released. The
6restrain tsystem warn -
in g lamp lights up.
Only in rar ecases will th eban gaffec tyour
hearing. The powder that is release dgener-
ally doe sno tconstitute ahealth hazard ,but it
may caus eshort-term breathin gdifficulties in
people wit hasthm aor other respirator yprob-
lems. To avoid this, you may wish to get out of
th evehicle or ope nth ewindows as soo nas it
is saf eto do so.
Ai rbags and pyrotechni cEmergency Tension-
in gDevices (ETDs) contain perchlorat emate-
rial ,whic hma
y require special handlin gand
regard fo rth eenvironment. National guide-
lines mus tbe observed durin gdisposal. In
California, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm .
Method of operation
Duringth efirst stage of acollision ,th e
restrain tsystem contro luni tevaluates impor -
tant physical dat arelatin gto vehicle deceler -
ation or acceleration ,suc has:
Rduration
Rdirection
Rintensit y
Based on th eevaluation of this data, th e
restrain tsystem contro luni ttriggers th e
Emergency Tensioning Devices durin g afron -
ta lor rea rcollision .
An Emergency Tensioning Devic ecan only be
triggered, if:
Rth eignition is switched on
Rth ecomponent sof th erestrain tsystem are
operational; see "Restrain tsystem warnin g
lamp " (
Ypage 43)
Rthebelt tongue is engage din th ebuckl eon
th erespective front-passenger seat
The Emergency Tensioning Devices in th e
rea rcompartmen tare triggere dindepend -
entl yof th eloc kstatus of th eseat belts.
If th erestrain tsystem contro luni tdetects a
more severe accident, further component sof
Occupant safety57
Safety
Z