Battery (SmartKey)Checking .......................................... 81
Important safety notes .................... 81
Replacing ......................................... 81
Battery (vehicle)
Charging ........................................ 377
Display message ............................ 296
Important safety notes .................. 374
Jump starting ................................. 379
Overview ........................................ 374
Belt
see Seat belts
Blind Spot Assist
Activating/deactivating ................. 272
Display message ............................ 305
Notes/function .............................. 227
Trailer towing ................................. 229
see Active Blind Spot Assist
BlueTEC
Adding DEF .................................... 167
BlueTEC (DEF) .................................... 436
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 286
Notes ............................................. 438
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamps
Display message ............................ 293
Brake pedal
Pedal resistance/pedal travel .......... 44
Brakes
ABS .................................................. 66
Adaptive Brake Assist ...................... 70
BAS .................................................. 67
BAS PLUS with Cross-Traffic
Assist ............................................... 67
Brake fluid (notes) ......................... 438
Display message ............................ 281
High-performance brake system .... 185
Important safety notes .................. 183
Maintenance .................................. 184
Parking brake ................................ 179
RBS warning lamp .......................... 318
Recuperative Brake System ............. 44
Riding tips ...................................... 183 Warning lamp ................................. 317
Breakdown
Where will I find...? ........................ 369
see Flat tire
see Towing away
Brightness control (instrument
cluster lighting) ................................... 34
C
California
Important notice for retail cus-
tomers and lessees .......................... 26
Calling up a malfunction
see Display messages
Car
see Vehicle
Care
360° camera ................................. 366
Car wash ........................................ 361
Carpets .......................................... 368
Display ........................................... 367
Exhaust pipe .................................. 366
Exterior lights ................................ 365
Gear or selector lever .................... 367
Interior ........................................... 367
Matte finish ................................... 363
Notes ............................................. 361
Paint .............................................. 363
Plastic trim .................................... 367
Power washer ................................ 363
Rear view camera .......................... 365
Roof lining ...................................... 368
Seat belt ........................................ 368
Seat cover ..................................... 367
Sensors ......................................... 365
Side running board ........................ 365
Steering wheel ............................... 367
Trim pieces .................................... 367
Washing by hand ........................... 362
Wheels ........................................... 364
Windows ........................................ 364
Wiper blades .................................. 364
Wooden trim .................................. 367
Cargo compartment cover
Notes/how to use ......................... 334
Cargo compartment enlargement
Important safety notes .................. 332
Index5
Display message ............................ 299
General notes .................................. 42
High-voltage battery ........................ 43
Important safety notes .................... 42
Manual switch off ............................ 42
Opening the hood ............................ 43
Warning lamp ................................. 318
Hybrid vehicles
Important safety notes .................... 42
Hydroplaning ..................................... 185
I
Ignition lock
see Key positions
Immobilizer .......................................... 76
Indicator lamps
see Warning and indicator lamps
Indicators
see Turn signals
Insect protection on the radiator .... 357
Instrument cluster
Overview .......................................... 34
Warning and indicator lamps ........... 35
Instrument cluster lighting .............. 263
Interior lighting
Automatic control .......................... 119
Emergency lighting ........................ 119
Manual control ............................... 119
Overview ........................................ 118
Reading lamp ................................. 118
J
JackStorage location ............................ 369
Using ............................................. 410
Jump starting (engine) ...................... 379
K
Key positions
KEYLESS-GO .................................. 146
SmartKey ....................................... 145
KEYLESS-GO
Convenience closing feature ............ 93
Deactivation ..................................... 79
Display message ............................ 314
Locking ............................................ 79 Removing the Start/Stop button ... 147
Start function ................................... 80
Start/Stop button .......................... 146
Starting the engine ........................ 148
Unlocking ......................................... 79
Kickdown
Driving tips .................................... 157
Manual gearshifting ....................... 161
Knee bag .............................................. 51
L
Lamps
see Warning and indicator lamps
Lane detection (automatic)
see Lane Keeping Assist
Lane Keeping Assist
Activating/deactivating ................. 272
Display message ............................ 305
Function/information .................... 229
see Active Lane Keeping Assist
Lap time (RACETIMER) ...................... 277
LATCH-type (ISOFIX) child seat
anchors ................................................ 62
Level control (display message) ...... 302
Level control (vehicle with the Off-
Road Engineering package)
Basic settings ................................ 202
Function/notes ............................. 201
Important safety notes .................. 201
License plate lamp (display mes-
sage) ................................................... 293
Light function, active
Display message ............................ 294
Light sensor (display message) ....... 294
Lights
Adaptive Highbeam Assist ............. 117
Automatic headlamp mode ............ 114
Cornering light function ................. 117
Hazard warning lamps ................... 116
High beam flasher .......................... 116
High-beam headlamps ................... 116
Light switch ................................... 114
Low-beam headlamps .................... 115
Parking lamps ................................ 115
Rear fog lamp ................................ 115
Standing lamps .............................. 115
12Index
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.
Make sure that the front-passenger front air
bag has been disabled. The PASSENGER AIR
BAG OFF indicator lamp must be lit.
If the PASSENGER AIR BAG OFF indicator lamp
remains off and/or the PASSENGER AIR BAG
ON indicator lamp is lit, do not fit a rearward-
facing child restraint system to the front-
passenger seat. For more information, see
"Problems with the Occupant Classification Sys-
tem (OCS)" (
Ypage 56).
GWARNING
If you secure a child in a forward-facing child
restraint system on the front-passenger seat
and you position the front-passenger seat too close to the dashboard, in the event of an
accident, the child could:
Rcome into contact with the vehicle's inte-
rior if the PASSENGER AIR BAG OFF indi-
cator lamp is lit, for example
Rbe struck by the air bag if the PASSENGER
AIR BAG ON is lit up
This poses an increased risk of injury or even fatal injury.
Move the front-passenger seat as far back as
possible. Always make sure that the shoulder belt strap is correctly routed from the vehicle
belt outlet to the shoulder belt guide on the
child restraint system. The shoulder belt strap
must be routed forwards and downwards
from the vehicle belt outlet. If necessary,
adjust the vehicle belt outlet and the front-
passenger seat accordingly. Always observe
the child restraint system manufacturer's
installation instructions.
If OCS detects that:
Rthe front-passenger seat is not occupied, the
PASSENGER AIR BAG OFF indicator lamp
lights up continuously after the system's self-
diagnosis test. This indicates that the front-
passenger front air bag is deactivated.
Rthe front-passenger seat is occupied by a
child aged up to twelve months in a standard
child restraint system, the PASSENGER AIR
BAG OFF indicator lamp lights up continu-
ously after the system's self-diagnosis test.
This indicates that the front-passenger front
air bag is deactivated.
In the case of a twelve-month-old child in a
standard child restraint system, the
PASSENGER AIR BAG ON indicator lamp may
light up continuously after the system's self-
diagnosis test. This indicates that the front-
passenger front air bag is activated. Catego-
rization is dependent on the type of child
restraint system and the stature of the child,
for example. In this case, always install the
chi
ld restraint system on a suitable rear seat.
Occupant safety53
Safety
Z
Rthe front-passenger seat is occupied by a per-
son of smaller stature (e.g. a teenager or a
small adult), either the PASSENGER AIR BAG
ON or PASSENGER AIR BAG OFF indicator
lamp lights up continuously after the system's
self-diagnosis test depending on the catego-
rization.
-If the PASSENGER AIR BAG ON indicator
lamp is lit, position the front-passenger
seat as far back as possible. Alternatively, a
person of smaller stature can sit on a rear
seat.
-If the PASSENGER AIR BAG OFF indicator
lamp lights up, a person of smaller stature
should not sit on the front-passenger seat.
Rthe front-passenger seat is occupied by an
adult or a person of an appropriate size, the
PASSENGER AIR BAG ON indicator lamp
lights up continuously after the system's self-diagnosis test. This indicates that the front-
passenger front air bag is activated.
If children are traveling in the vehicle, be sure to
observe the notes on "Children in the vehicle"
(
Ypage 60).
If the OCS is malfunctioning, both the red 6
restraint system warning lamp in the instrument
cluster and the PASSENGER AIR BAG OFF indi-
cator lamp light up simultaneously. In this case,
the front-passenger air bag is deacti vated a
nd
does not deploy during an accident. Have the
system checked by qualified technicians as
soon as possible. Consult an authorized
Mercedes-Benz Center. Only have the front-
passenger seat repaired at an authorized
Mercedes-Benz Center.
If the front-passenger seat, the seat cover or the
seat cushion are damaged, have the necessary
repair work carried out at an authorized
Mercedes-Benz Center.
For safety reasons, Mercedes-Benz recom-
mends that you only use seat accessories that
have been approved by Mercedes-Benz.
If the driver's air bag deploys, this does not
mean that the front-passenger front air bag will
also deploy. The Occupant Classification Sys-
tem (OCS) categorizes the occupant on the
front-passenger seat. Depending on the result,
the front-passenger air bag is activated or deac-
tivated.
System self-test
GDANGER
If both the PASSENGER AIR BAG OFF and
PASSENGER AIR BAG ON indicator lamps do
not light up during the system self-test, the
system is malfunctioning. The front-
passenger front air bag might be triggered
unintentionally or might not be triggered at all
in the event of an accident with high deceler-
ation. This poses an increased risk of injury or
even fatal injury.
In this case the front-passenger seat may not
be used. Do not install a child restraint system
on the front-passenger seat. Have the Occu-
pant Classification System (OCS) checked
and repaired immediately at a qualified spe-
cialist workshop.
GDANGER
If the PASSENGER AIR BAG OFF indicator
lamp remains lit after the system self-test, the
front-passenger front air bag is disabled. It will
not be deployed in the event of an accident. In
this case, the front-passenger front air bag
cannot perform its intended protective func-
tion, e.g. when a person is seated in the front-
passenger seat.
That person could, for example, come into
contact with the vehicle's interior, especially
if the person is sitting too close to the dash-
board. 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 person is seated properly with a cor-
rectly fastened seatbelt
Rthe front-passenger seat has been moved
back as far back as possible
If the PASSENGER AIR BAG OFF indicator
lamp remains lit when it should not, the front-
54Occupant safety
Safety
activated regardless. There is a risk of an acci-dent.
Always carefully observe the traffic conditions
and switch off the high-beam headlamps in
good time.
Adaptive Highbeam Assist cannot take into
account road, weather or traffic conditions.
Adaptive Highbeam Assist is only an aid. You are responsible for adjusting the vehicle's lighting
to the prevailing light, visibility and traffic con-
ditions.
In particular, the detection of obstacles can be
restricted if there is:
Rpoor visibility, e.g. due to fog, heavy rain or
snow
Rdirt on the sensors or the sensors are
obscured
Switching Adaptive Highbeam Assist
on/off
XTo switch on: turn the light switch to Ã.
XPress the combination switch beyond the
pressure point in the direction of arrow :.
The _ indicator lamp in the multifunction
display lights up when it is dark and the light
sensor activates the low-beam headlamps.
If you are driving at speeds above approx-
imately 16 mph (25 km/h):
The headlamp range is set automatically
depending on the distance between the vehi-
cle and other road users.
If you are driving at speeds above approx-
imately 19 mph (30 km/h) and no other road
users have been detected:
The high-beam headlamps are switched on
automatically. The Kindicator lamp in the
instrument cluster also lights up.
If you are driving at speeds below approx-
imately 16 mph (25 km/h) or other road users
have been detected or the roads are ade-
quately lit:
The high-beam headlamps are switched off
automatically. The Kindicator lamp in the
instrument cluster goes out. The _indi- cator lamp in the multifunction display
remains lit.
XTo switch off:
move the combination switch
back to its normal position or move the light
switch to another position.
The _ indicator lamp in the multifunction
display goes out.
Headlamps fogged up on the inside
Certain climatic and physical conditions may
cause moisture to form in the headlamp. This
moisture does not affect the functionality of the
headlamp.
Interior lighting
Overview of interior lighting
Overhead control panel
:
p Switches the left-hand front reading
lamp on/off
;c Switches the front interior lighting on
=vSwitches the rear interior lighting on/
off
?| Switches the front interior lighting/
automatic interior lighting control off
Ap Switches the right-hand front reading
lamp on/off
BSwitches the automatic interior lighting con-
trol on
Interior lighting control
General notes
In order to prevent the vehicle's battery from
discharging, the interior lighting functions are
automatically deactivated after some time
118Interior lighting
Lights and windshield wipers
except when the SmartKey is in position2in the
ignition lock.
The color and brightness for the ambient lighting may be set via the multimedia system (see the
separate operating instructions).
Automatic interior lighting control
XTo switch on: set the switch to center posi-
tion B.
XTo switch off: set the switch to the |
position.
The interior lighting automatically switches on if
you:
Runlock the vehicle
Ropen a door
Rremove the SmartKey from the ignition lock
The interior light is activated for a short while
when the SmartKey is removed from the ignition
lock. This delayed switch-off can be adjusted via
the multimedia system (see the separate oper-
ating instructions).
Manual interior lighting control
XTo switch the front interior lighting on: set
the switch to the cposition.
XTo switch the front interior lighting off: set
the switch to the |position or (if the door
is closed) to the center position.
XTo switch the rear compartment interior
lighting on/off: press theubutton.
XTo switch the reading lamps on/off: press
the p button.
Crash-responsive emergency lighting
The interior lighting is activated automatically if
the vehicle is involved in an accident.
XTo switch off the crash-responsive emer-
gency lighting: press the hazard warning
lamp button.
or
XLock and then unlock the vehicle using the
SmartKey.
Replacing bulbs (vehicles with LED
headlamps)
The front and rear light clusters of your vehicle
are equipped with LED light bulbs. Do not
replace the bulbs yourself. Contact a qualified
specialist workshop which has the necessary
specialist knowledge and tools to carry out the
work required.
Lamps are an important aspect of vehicle safety.
You must therefore make sure that these func-
tion correctly at all times. Have the headlamp
setting checked regularly.
Changing bulbs (vehicles with halo-
gen headlamps)
Important safety notes
GWARNING
Bulbs, lamps and connectors can get very hot
when operating. If you change a bulb, you
could burn yourself on these components.
There is a risk of injury.
Allow these components to cool down before
changing a bulb.
Do not use a bulb that has been dropped or if its
glass tube has been scratched.
The bulb may explode if:
Ryou touch it
Rit is hot
Ryou drop it
Ryou scratch it
Only operate bulbs in enclosed lamps designed
for that purpose. Only install spare bulbs of the same type and the specified voltage.
Marks on the glass tube reduce the service life
of the bulbs. Do not touch the glass tube with
your bare hands. If necessary, clean the glass
tube when cold with alcohol or spirit and rub it
off with a lint-free cloth.
Protect bulbs from moisture during operation.
Do not allow bulbs to come into contact with
liquids.
Only replace the bulbs listed (
Ypage 120).
Have the bulbs that you cannot replace yourself
replaced at a qualified specialist workshop.
Changing bulbs (vehicles with halogen headlamps)119
Lights and windshield wipers
Z
Optimum use of 3-zone automatic cli-
mate control
The following contains instructions and recom-
mendations to enable you to get the most out of
your 3-zone automatic climate control.
RActivate climate control using theÃand
¿ buttons. The indicator lamps above the
à and¿ buttons light up.
RIn automatic mode, you can also use the ñ
button to set a climate mode (FOCUS/
MEDIUM/DIFFUSE). The MEDIUM level is
recommended.
RSet the temperature to 72 ‡ (22 †).
ROnly use the "Windshield defrosting" function
briefly until the windshield is clear again.
ROnly use air-recirculation mode briefly, e.g. if
there are unpleasant outside odors or when in
a tunnel. The windows could otherwise fog up, since no fresh air is drawn into the vehicle in
air-recirculation mode.
RUse the ZONE function to adopt the temper-
ature settings on the driver's side for the
front-passenger side and the rear compart-
ment as well. The indicator lamp above the
á button goes out.
RUse the residual heat function if you want to
heat or ventilate the vehicle interior when the
ignition is switched off. The residual heat
function can only be activated or deactivated with the ignition switched off.
RIf you change the settings of the climate con-
trol system, the climate status display
appears for approximately three seconds at
the bottom of the screen in the multimedia
system display. You will see the current set-
tings of the various climate control functions.
During automatic engine switch-off, the climate
control system only operates at a reduced capa-
city. If you require the full climate control output,
you can switch off the ECO start/stop function
by pressing the ECO button (
Ypage 151).
Operating the climate control sys-
tems
Activating/deactivating climate con-
trol
General notes
When the climate control is switched off, the air
supply and air circulation are also switched off.
The windows could fog up. Therefore, switch off
climate control only briefly
iSwitch on climate control primarily using
the à button (Ypage 134).
In the rear compartment, you can also switch
climate control on and off using the Ãand
^ buttons.
Activating or deactivating
XTurn the SmartKey to position 2in the ignition
lock (Ypage 145).
XTo activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to auto-
matic mode.
or
XPress the ^button.
The indicator lamp in the ^button goes
out. The previously selected settings are
restored.
XTo deactivate: press the^button.
The indicator lamp in the ^button lights
up.
Switching cooling with air dehumidi-
fication on/off
General notes
If you deactivate the "Cooling with air-dehumid-
ification" function, the air inside the vehicle will
not be cooled. The air inside the vehicle will also
not be dehumidified. The windows can fog up
more quickly. Therefore, only deactivate the
"Cooling with air-dehumidification" function
briefly.
The "Cooling with air dehumidification" function is only available when the engine is running. The
air inside the vehicle is cooled and dehumidified
according to the temperature selected.
132Operating the climate control systems
Climate control
Problems with the rear window defroster
ProblemPossible causes/consequences andMSolutions
The rear window
defroster has deactiva-
ted prematurely or can-
not be activated.The battery has not been sufficiently charged.
XSwitch off any consumers that are not required, e.g. reading lamps,
interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window defroster
can be activated again.
Switching air-recirculation mode
on/off
General notes
You can deactivate the flow of fresh air if
unpleasant odors are entering the vehicle from
outside. The air already inside the vehicle will
then be recirculated.
If you switch on air-recirculation mode, the win-
dows can fog up more quickly, in particular at
low temperatures. Only use air-recirculation
mode briefly to prevent the windows from fog-
ging up.
Switching on/off
XTurn the SmartKey to position 2in the ignition
lock (Ypage 145).
XTo activate: press thedbutton.
The indicator lamp in the dbutton lights
up.
iIn the event of high pollution levels (3-zone
automatic climate control only) or at high out-
side temperatures, air-recirculation mode is
automatically activated. When air-recircula-
tion mode is activated automatically, the indi-
cator lamp in the dbutton is not lit.
Outside air is added after about 30 minutes.
XTo deactivate: press thedbutton.
The indicator lamp in the dbutton goes
out.
iAir-recirculation mode deactivates auto-
matically:
Rafter approximately five minutes at outside
temperatures below approximately 41 ‡
(5 †)
Rafter approximately five minutes if cooling
with air dehumidification is deactivated
Rafter approximately 30 minutes at outside
temperatures above approximately 41 ‡ (5 †) if the "Cooling with air dehumidifi-
cation" function is activated
Switching the residual heat on or off
General notes
The residual heat function is only available on
vehicles for Canada.
It is possible to make use of the residual heat of
the engine to continue heating the stationary
vehicle for up to 30 minutesafter the engine has
been switched off. The heating time depends on
the set interior temperature.
Switching on/off
XTo activate: press theÌorÁ button.
The indicator lamp in the ÌorÁ button
lights up.
iThe blower will run at a low speed regardless
of the airflow setting.
iIf you activate the residual heat function at
high temperatures, only the ventilation will be
activated. The blower runs at medium speed.
XTo deactivate: press theÌorÁ but-
ton.
The indicator lamp in the ÌorÁ button
goes out.
Residual heat is deactivated automatically:
Rafter approximately 30 minutes
Rwhen the ignition is switched on
Rif the battery voltage drops
Ionization
Ionization is used to purify the air in the vehicle
interior and attain an improved interior climate.
138Operating the climate control systems
Climate control