B
Bag hook ............................................ 287
Ball coupling Folding in ....................................... 202
Folding out ..................................... 201
BAS (Brake Assist System) .................66
Basic settings see Settings
BAS PLUS (Brake Assist System
PLUS) .................................................... 66
Battery (key) Checking .......................................... 81
Important safety notes ....................80
Replacing ......................................... 81
Battery (vehicle)
Charging ........................................ 328
Connecting .................................... 327
Disconnecting ................................ 327
Display message (12-button mul-
tifunctio nsteering wheel) ..............255
Display message (4-button multi-
function steering wheel) ................252
Important safety notes ..................325
Jump starting ................................. 329
Location ......................................... 326
Removing/fitting ........................... 327
Belt
see Seat belt
Belt force limiters (activation) ...........45
Belt tensioner Activation ......................................... 45
Function .......................................... .54
Blind Spo tAssist
Activating/deactivating .................222
Display message (12-button mul-
tifunctio nsteering wheel) ..............259
Notes/function .............................. 190
Trailer towing ................................. 192
see Active Blind Spot Assist
Bonnet
Active bonnet (pedestrian protec-
tion) ............................................... 300
Closing .......................................... .302
Display message (12-button mul-
tifunctio nsteering wheel) ..............268Display message (4-button multi-
function steering wheel)
................266
Opening ......................................... 301
Boot
Emergency release ..........................87
Important safety guidelines .............85
Locking separatel y........................... 87
Opening (automatically from
inside) .............................................. 87
Opening (automatically from out-
side) ................................................ .86
Boo tlid
Display message (12-button mul-
tifunction steering wheel) ..............268
Display message (4-button multi-
function steering wheel) ................266
Opening/closing .............................. 85
Opening dimensions ......................360
Boot load (maximum)
see Technical data
Brake Assist System
see BAS (Brake Assist System)
Brake fluid
Display message (12-button mul-
tifunctio nsteering wheel) ..............241
Display message (4-button multi-
function steering wheel) ................236
Notes ............................................. 356
Brake lamp
Display message (12-button mul-
tifunctio nsteering wheel) ..............249
Display message (4-button multi-
function steering wheel) ................245
Brake lamps
Adaptive .......................................... .67
Changin gbulbs .............................. 118
Brakes
ABS .................................................. 65
BAS .................................................. 66
BAS PLUS ........................................ 66
Brake fluid (notes) .........................356
Display message (12-button mul-
tifunctio nsteering wheel) ..............238
Display message (4-button multi-
function steering wheel) ................234
Driving tips .................................... 159
High-performance brake system ....161
Important safety notes ..................1596
Index
Useful information
i This Owner's Manual describes all models
and all standard and optional equipment
available to your vehicle at the time of pub-
lication of the Owner's Manual. Country-
specific deviations are possible. Please
note that your vehicle may not be equipped
with all features described. This also
applies to safety-relevan tsystems and
functions.
i Please read the information on qualified
specialist workshops (Y page 26).Exterior lighting
Important safety notes
Fo rreasons of safety, Mercedes-Benzr ecom-
mends that you drive with the lights switched
on even during the daytime. In some coun-
tries, operation of the headlamps varies due
to legal requirements and self-imposed obli-
gations. Notes on driving abroad
Convert to symmetrical dipped beam
when driving abroad: switch the headlamps
to symmetrical dipped beam in countries in
which traffic drives on the opposite side of the
road to the country where the vehicle is reg-
istered. This prevents glare to oncoming traf-
fic. Symmetrical lights do not illuminate as
large an area of the edge of the carriageway.
Convert the headlamps as close to the border
as possible before driving in these countries
(Y page 224).
Convert to asymmetrical dipped beam
after returning: convert the headlamps back
to asymmetrical dipped beam as soon as pos-
sible after crossing the border when returning
(Y page 224). If the headlamps are converted to symmetri-
cal dipped beam, the "motorway mode" and
"extended range foglamps" functions (Intelli-
gent Light System) are not available. Light switch
Operation 1W
Left-hand parking lamps
2X Right-hand parking lamps
3T Side lamps, licence plate and instru-
ment cluster lighting
4Ã Automatic headlamp mode/daytime
driving lights
5L Dipped-beam/main-beam head-
lamps
BR Rear foglamp
CN Foglamps 5
The turn signals, main-beam headlamps and
the headlamp flasher are operated using the
combination switch (Y page 110).
! Switch off the side lamps and parking
lamp when you leave the vehicle. This pre-
vents the battery from discharging.
The exterior lighting (except the side lamps/
parking lamps) switches off automatically if
you:
R remove the key from the ignition lock
R open the driver's door with the key in posi-
tion 0
5 Only vehicles with fron tfoglamps have the "Foglamps" function. 108
Exterior lightingLights and windscreen wipers
X
Drive with the headlamps switched on.
The level of moisture diminishes, depend-
ing on the length of the journey and the
weather conditions (humidity and temper-
ature).
If the level of moisture does not diminish:
X Have the headlamps checked at a qualified
specialis tworkshop. Interior lighting
Overview of interior lighting
:
u To switch the rear interior lighting
on/off
; | To switch the automatic interior
lighting control on/off
= p To switch the right-hand front read-
ing lamp on/off
? c To switch the front interior lighting
on/off
A p To switch the left-hand front reading
lamp on/off Interior lighting control
Important notes In order to prevent the vehicle's battery from
discharging, the interior lighting functions are
automatically deactivated after some time
except for when the key is in position
2in the
ignition lock. Automatic interior lighting control X
To switch on/off: press the|button.
When the automatic interior lighting con-
trol is activated, the button is flush with the
overhead control panel.
The interior lighting automatically switches
on if you:
R unlock the vehicle
R open a door
R remove the key from the ignition lock
The interior light is activated for a short while
when the key is removed from the ignition
lock. You can activate this delayed switch-off
using the on-board computer (Y page 225).
Manual interior lighting control X
To switch the interior lighting on/off:
press the cbutton.
X To switch the reading lamps on/off:
press the pbutton. Crash-responsive emergency lighting
The interior lighting is activated automatically
if the vehicle is involved in an accident.
X To switch off the crash-responsive
emergency lighting: press the hazard
warning lamp button.
or
X Lock and then unlock the vehicle using the
key. Changing bulbs
Important safety notes
Xenon bulbs If your vehicle is equipped with xenon bulbs,
you can recognise this by the following: the
cone of light from the xenon bulbs moves
from the top to the bottom and back again
when you start the engine. For this to be114
Changing bulbsLights and windscreen wipers
i
There are various mobile phone brackets
that may be fitted to your vehicle; in some
cases, these are country-specific.
i Even if your vehicle is equppied with con-
venience telephony, you can connect a
Bluetooth ®
-capable mobile phone with
Audio 20 or COMAND Online via the Blue-
tooth ®
interface.
More information on suitable mobile phones,
mobile phone brackets and on connecting
Bluetooth ®
-capable mobile phones with
Audio 20 or COMAND Online can be obtained:
R at your Mercedes-Benz Service Centre
R on the Internet at http://www.mercedes-
benz.com/connect
i The functions and services available when
you use the phone depend on your mobile
phone model and service provider.
Inserting the mobile phone X
Open the telephone compartment
(Y page 285).
X Place the mobile phone bracket into the
pre-installed bracket (see the separate
mobile phone bracket installation instruc-
tions).
X Insert the mobile phone into the mobile
phone bracket (see the separate mobile
phone bracket installation instructions).
If the mobile phone is inserted in the mobile
phone bracket, you can speak to the person
you are calling using the hands-free system.
i On some mobile phone brackets, first you
have to connect the mobile phone via Blue-
tooth ®
with a mobile phone bracket (see
the separate operating instructions for the
mobile phone bracket).
On these mobile phone brackets, the
mobile phone does not have to be inserted
into the bracket for you to be able to use
the telephone functions. In this case, the
charging function and aerial function are
not available. Operating the mobile phone You can operate the telephone using the
6
and~ buttons on the luxury multi-
function steering wheel. You can operate
other mobile phone functions via the on-
board computer (Y page 219).
When you take the key out of the ignition lock,
the mobile phone stays on but you can no
longer use the hands-free system.
If you are making a call and you would like to
take the key out of the ignition lock, first
remove the mobile phone from the bracket.
Otherwise, the call will be ended.
i When a mobile phone bracket is used that
is connected to the mobile phone via Blue-
tooth ®
: if you want to continue a call in
"Private mode", you have to perform the
necessary steps on the mobile phone (see
the separate mobile phone operating
instructions).
You can fold the pre-installed bracket up to
improve access to the stowage space
beneath it. Depending on the vehicle's equip-
ment,t here is aUSB connection and an AUX-
IN connection/Media Interface fitted in the
stowage compartment (Y page 285). X
To fold the bracket up: press button:.
X To fold the bracket down: press the
bracket dow nand allow it to engage. Features
293Stowing an d features Z
water
.Consult a doctor if
necessary. Wear eye protection.
Keep children away.
Observe this Owner's Man-
ual.
H
Environmental note Batteries contain pollutants.
It is against the law to dis-
pose of them with the house-
hold rubbish. They must be
collected separately and
recycled in an environmen-
tally responsible manner. Dispose of batteries in an
environmentally responsible
manner. Take discharged
batteries to a qualified spe-
cialist workshop, e.g. a
Mercedes-Benz Service
Centre, or to a special col-
lection point for old batter-
ies.
G
WARNING
For safety reasons, Mercedes-Benz recom-
mends that you only use batteries which have
been tested and approved for your vehicle by
Mercedes-Benz. These batteries provide
increased impact protection to prevent vehi-
cle occupants from suffering acid burns
should the battery be damaged in the event
of an accident.
To prevent acid burns, observe the following
safety notes when handling batteries: R
do not lean over the battery.
R do not place any metal objects on a battery.
Otherwise, you could cause a short circuit
and the battery's gas mixture could ignite.
R make sure that you do not create an elec-
trostatic charge, e.g. by wearing synthetic
clothing or as a result of friction on fabrics.
Therefore, you should not pull or slide the
battery over carpets or other synthetic
materials.
R never touch the battery first. To discharge
a possible electrostatic charge, step out of
the vehicle first and touch the bodywork.
R do not wipe the battery using a cloth. The
battery may explode as a result of electro-
static charge or due to flying sparks.
! Switch off the engine and remove the key
before disconnecting the terminal clamps
from the battery. On vehicles with KEY-
LESS-GO, make sure that the ignition is
switched off. Check that all the indicator
lamps in the instrument cluster are off. You
may otherwise destroy electronic compo-
nents, such as the alternator.
i When you park the vehicle, remove the
key if you do not require any electrical con-
sumers. The vehicle will then use very little
energy, thus conserving battery power.
Mercedes-Benz recommends that you do not
carry out work on batteries yourself, e.g.
removing or charging. Have this work per-
formed at a qualified specialist workshop, e.g.
a Mercedes-Benz Service Centre. Installation location of the battery
Your vehicle is equipped with a battery in the
engine compartment. It is fitted in front of the
front bulkhead on the right-hand side of the
vehicle when viewed in the direction of travel. 326
BatteryBreakdown assistance
X
Connect the negative terminal clamp.
X Put the filter box back in place, then clip in
and close the retaining clamps.
X Close the bonnet.
i If the power supply has been interrupted,
e.g. if the battery has been reconnected,
you must carry out th efollowing tasks:
R set the clock; see the separate operating
instructions.
R reset the function for automatically fold-
ing the exterior mirrors in/out by folding
the mirrors out once (Y page 104).Charging the battery
G
WARNING
Only charge the battery in a well-ventilated
area. As the battery is being charged, gases
can escape and generate minor explosions.
This could injure you and other persons or
cause damage to the paintwork or acid cor-
rosion on the vehicle.
You can obtain information about battery
chargers which allow the battery to be
charged while still installed from a qualified
specialist workshop, e.g. aMercedes-Benz
Service Centre. G
WARNING
There is a risk of acid burns during the charg-
ing process due to the gases which escape
from the battery. Do not lean over the battery
during the charging process. G
WARNING
Battery acid is caustic. Avoid contact with the
skin, eyes or clothing.
! Only charge the installed battery with a
battery charger which has been tested and
approved by Mercedes-Benz .These battery
chargers allow the battery to be charged
while still installed. !
Only use battery chargers with a maxi-
mum charging voltage of 14.8 V.
! Only charge the battery using the jump-
start connection point.
The jump-starting connection point is in the
engine compartment (Y page 329).
X Open the bonnet (Y page 301).
X Connect the battery charger to the positive
terminal and earth point in the same order
as when connecting the donor battery in
the jump-starting procedure
(Y page 329).
X Read the battery charger's operating
instructions before charging the battery. 328
BatteryBreakdown assistance
Jump-starting
G
WARNING
There is a risk of acid burns when jump-starting a vehicle due to the gases which escape from
the battery. Do not lean over the battery while the engine is being jump-started. G
WARNING
Gases escaping from the battery during jump-starting may cause minor explosions. Avoid cre-
ating sparks. Keep naked flames away from the battery, and do not smoke.
Comply with safety precautions when handling batteries. You will find these under "Battery" in
the index.
! Avoid repeated and lengthy starting attempts. Otherwise, non-combusted fuel may dam-
age the catalytic converter 13
and create a risk of fire.
Do not use a rapid-charging device to start the engine.
Make sure the jump leads are not damaged.
Make sure the jump leads are not touching any other metal objects when they are connected
to the battery.
If your vehicle's battery is discharged, the engine can be jump-started from another vehicle
or from a second battery using jump leads.
Observe the following points:
X The battery is not accessible in all vehicles. If the other vehicle's battery is not accessible,
jump-start the vehicle using a second battery or ajump-starting device.
X Only jump-start the vehicle when the engine is cold and the catalyti cconverter system has
cooled down 14
.
X Do not start the engine if the battery is frozen. Let the battery thaw first.
X Jump-starting may only be performed from batteries with a nominal voltage of 12 V.
X Only use jump leads which have a sufficient cross-section and insulated terminal clamps.
X Make sure that the jump leads cannot come into contact with parts, such as the pulley or
the fan. These parts move when the engine is started and while it is running.
X If the battery is fully discharged, leave the battery that is being used to jump-start connected
for a few minutes before attempting to start.T his charges the empty battery a little.
i Jump leads and further information about jump-starting can be obtained from any
Mercedes-Benz Service Centre, for example.
X Make sure that the two vehicles do not touch.
X Apply the parking brake firmly.
X Manual transmission: engage neutral.
X Automatic transmission: move the selector lever toP.
X Switch off all electrical consumers (e.g. radio, blower, etc.).
X Open the bonnet (Y page 301).
13 Only vehicles with a petrol engine.
14 Only vehicles with a petrol engine. Jump-starting
329Breakdown assistance Z