
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamps
Adaptive ........................................... 57
Brakes
ABS .................................................. 54
Adaptive Brake Assist ...................... 56
AMG high-performance and
ceramic brakes .............................. 124
BAS .................................................. 54
Brake fluid (notes) ......................... 279
Display message ............................ 172
Driving tips .................................... 123
Hill start assist ............................... 104
Important safety notes .................. 123
Parking brake ................................ 121
Warning lamp ................................. 196
Breakdown
Where will I find...? ........................ 244
see Flat tyre
see Towing away
Buttons on the steering column ...... 156C
Calling up a fault see Display messages
Calling up the climate control bar
Multimedia system ........................ 209
Calling up the climate control
menu
Multimedia system ........................ 209
Car
see Vehicle
Car wash (care) ................................. 238
Care
Automatic car wash ....................... 238
Carpets .......................................... 243
Display ........................................... 242
Exhaust pipe .................................. 242
Exterior lighting ............................. 241
Gear or selector lever .................... 243
High-pressure cleaner .................... 239
Interior ........................................... 242
Matt paintwork .............................. 240
Note s............................................. 238
Paint .............................................. 239 Plastic trim .................................... 242
Reversing camera .......................... 241
Roof lining ...................................... 243
Seat belt ........................................ 243
Seat cove r..................................... 243
Sensors ......................................... 241
Steering wheel ............................... 243
Trim pieces .................................... 243
Washing by hand ........................... 239
Wheels ........................................... 240
Windows ........................................ 240
Wiper blades .................................. 241
Wooden trim .................................. 243
CD
See also Digital Owner's Manua l... 205
CD player (on-board computer) ........ 161
Central locking
Locking/unlocking (key) .................. 64
Centre console
Overview .......................................... 31
Changing the media source ............. 161
Charge retention
Socket ........................................... 122
Charge-air pressure (on-board
computer) .......................................... 167
Child
Restraint system .............................. 49
Child seat
Forward-facing restraint system ...... 51
On the front-passenger sea t............ 50
Rearward-facing restraint system .... 51
Recommendations ........................... 52
Suitable positions ............................ 51
Children in the vehicle
Important safety notes .................... 49
Cigarette lighter ................................ 222
Cleaning
Mirror turn signal ........................... 241
Climate control
Controlling automaticall y................. 97
Convenience opening/closing
(air-recirculation mode) ................... 99
Cooling with air dehumidification ..... 96
Cooling with air dehumidification
(multimedia system) ...................... 209
Demisting the windows .................... 98
Demisting the windscreen ............... 98
ECO start/stop function .................. 96 6
Index

From inside (central locking but-
ton) .................................................. 70
see KEYLESS-GO
Locking centrally
see Central locking
Luggage compartment
Unlocking with KEYLESS-G O............ 72
Luggage compartment cover
Important safety notes .................. 218 M
M button ............................................. 113
M+S tyres ........................................... 263
Main-beam headlamps
Display message ............................ 182
Switching on/of f.............................. 89
Manual mode ..................................... 115
Matt finish (cleaning instructions) .. 240
MB Contact
Display message ............................ 177
Media Interface
see Digital Owner's Manual
Memory card (audio) ......................... 161
Memory function
Seats, steering wheel, exterior
mirrors ............................................. 86
Mercedes-Benz emergency call
system
Switch in the overhead control
panel .............................................. 223
Mercedes-Benz Intelligent Drive
DISTRONIC PLUS ........................... 130
Mercedes-Benz Service Centre
see Qualified specialist workshop
Message memory (on-board com-
puter) .................................................. 171
Messages
see Display messages
see Warning and indicator lamps
Mirror turn signal
Cleaning ......................................... 241
Mirrors
see Exterior mirrors
see Rear-view mirror
see Vanity mirror Mobile phone
Connecting (Bluetooth ®
inter-
face) .............................................. 211
Connecting another mobile
phone ............................................ 212
Connecting the telephone module
with Bluetooth ®
(SAP profile) ......... 214
Frequencies ................................... 275
Installation ..................................... 275
Menu (on-board computer) ............ 162
Notes/placing in the bracket ......... 223
Transmission output (maximum) .... 275
Modifying the programming (key) ..... 65
MP3
Operating ....................................... 161
See also Digital Owner's Manua l... 205
Multifunction display
Function/note s............................. 157
Multifunction steering wheel
Operating the on-board compute r..1 56
Overview .......................................... 30
Multimedia system
Switching on and off ..................... .206
Music files
See also Digital Owner's Manual ... 205 N
Navigation Menu (on-board computer) ............ 159
See also Digital Owner's Manual ... 205
Notes on running in a new vehicle .. 101 O
Occupant safety Airbags ............................................ 38
Automatic front-passenger front
airbag deactivatio n .......................... 41
Automatic measures after an acci-
dent ................................................. 48
Children in the vehicle ..................... 49
Important safety notes .................... 34
PASSENGER AIRBAG indicator
lamp ................................................. 35
Pets in the vehicle ........................... 53
PRE-SAFE ®
(anticipatory occu-
pant protection) ............................... 48 Index
13

Panic alarm
X
To prime: press the!button :for
approximately one second.
A visual and audible alarm is triggered if the
alarm system is primed.
X To deactivate: press the!button :
again.
or
X Press the Start/Stop button.
The key must be in the vehicle.
or X Insert the key into the ignition lock.
The panic alarm function is only available in cer- tain countries. 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. The restraint system can also reduce the forces
to which vehicle occupants are subjected during an accident.
The restraint system includes the:
R seat belt system
R airbags
The components of the restraint system work in conjunction with each other. They can only offer
protection if all vehicle occupants always:
R have the seat belt correctly fastened
(Y page 37)
R have the seat adjusted properly
(Y page 78) Depending on the vehicle's equipment, the
head restraints must also be adjusted prop-
erly.
As the driver, you must also make sure that the
steering wheel is also adjusted properly.
Observe the information on the correct driver's
seat position (Y page 78).
In addition, you must make sure that the airbags can inflate properly if they are deployed
(Y page 39).
An airbag supplements a correctly worn seat
belt. As an additional safety device, the airbag
increases the level of protection for vehicle
occupants in the event of an accident. The air-
bags are not deployed, for example, in the event
of an accident in which sufficient protection is
offered by the seat belt. In addition, only those
airbags, which in the applicable accident situa-
tions offer additional protection, are deployed in the event of an accident. However, the seat beltand airbag generally do not protect against
objects penetrating the vehicle from the out-
side.
Information on how the restraint system oper-
ates can be found under "Deployment of belt
tensioners and airbags" (Y page 46).
See "Children in the vehicle" for information on
children travelling with you in the vehicle as well
as on child restraint systems (Y page 49). Important safety notes
G
WARNING
If the restraint system is modified, it may no
longer work as intended. The restraint system
may then not perform its intended protective function by failing in an accident or triggering
unexpectedly, for example. There is an
increased risk of injury, possibly even fatal.
Never modify parts of the restraint system. Do not attempt to modify the wiring as well as
electronic components or their software.
If the vehicle is adapted to a person with a phys-
ical disability, contact a qualified specialist
workshop.
Mercedes-Benz recommends that you only use
driving aids which have been approved specifi-
cally for your vehicle by Mercedes-Benz. 34
Occupant safetySafety

Seat belts
Introduction A correctly worn seat belt is the most effective
means of restraining the movement of vehicle
occupants in the event of a collision or if the
vehicle overturns. This reduces the risk of vehi- cle occupants coming into contact with parts of
the vehicle interior or being ejected from it. The
seat belt also helps to keep the vehicle occu-
pants in the best position in relation to the air-
bag being deployed.
The seat belt system consists of:
R seat belts
R belt tensioners and belt force limiters
If the seat belt is pulled quickly or sharply by the
belt loop, the inertia reel locks. The belt strap
cannot be pulled out any further.
The belt tensioner tightens the seat belt in the
event of a collision so that it fits tightly across
your body. However, it does not pull the vehicle occupants back in the direction of the seat
backrest.
The belt tensioner does not, however, correct an
incorrect seat position or correct the routing of
a seat belt that is worn incorrectly.
When triggered, seat belt force limiters help to
reduce the peak force exerted by the seat belt
on the vehicle occupant.
The belt force limiters are synchronised with the front airbags, which take on a part of the decel-
eration force. This can reduce the forces to
which the vehicle occupants are subjected dur- ing an accident.
! If the co-driver's seat is not occupied, do not
engage the seat belt tongue in the buckle on
the co-driver's seat. Otherwise, the belt ten-
sioner could be triggered in the event of an
accident and would have to be replaced.
Important safety notes G
WARNING
If the seat belt is worn incorrectly, it cannot
perform its intended protective function. Fur- thermore, an incorrectly worn seat belt can
cause additional injuries, e.g. in the event of
an accident, heavy braking or sudden
changes of direction. There is an increased
risk of injury, possibly even fatal. Always ensure that all vehicle occupants have
their seat belts fastened correctly and are sit- ting properly. G
WARNING
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 seatbelt is routed
across the centre of your shoulder. G
WARNING
Persons under 1.50 mtall cannot wear the
seat belts correctly without an additional suit- able restraint system. If the seat belt is worn
incorrectly, it cannot perform its intended
protective function. Furthermore, an incor-
rectly worn seat belt can cause additional
injuries, e.g. in the event of an accident, heavy braking or sudden changes of direction. There
is an increased risk of injury, possibly even
fatal.
Always secure persons less than 1.50 mtall in
additional suitable restraint systems.
If a child younger than twelve years old and
under 1.50 m in height is travelling in the vehi-
cle:
R Always 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.
R Be sure to observe the instructions and safety
notes on the "Automatic front-passenger
front airbag deactivation system".
(Y page 41)
R Be sure to observe the instructions and safety
notes on "Children in the vehicle"
(Y page 49) in addition to the manufactur- 36
Occupant safetySafety

R
the engine is switched off and the fuel supply
is cut off
R vehicles with the Mercedes-Benz emergency
call system: automatic emergency call Children in the vehicle
Important safety notes
If a child younger than twelve years old and
under 1.50 min height is travelling in the vehi-
cle:
R always 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.
R be sure to observe the instructions and safety
notes in this section in addition to the child
restraint system manufacturer's installation
instructions.
R be sure to observe the instructions and safety
notes on the automatic front-passenger front airbag deactivation system (Y page 41).G
WARNING
If you leave children unattended in the vehi-
cle, they could set the vehicle in motion by, for example:
R releasing the parking brake
R shifting the transmission into neutral
R starting the engine
They could also operate the vehicle's equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children unattended in the vehicle. G
WARNING
If persons (particularly children) are exposed
to heat or cold for a prolonged period, there is a risk of serious or even fatal injuries. Never
leave persons (particularly children) unatten-
ded in the vehicle. G
WARNING
If the child restraint system is placed in direct sunlight, the parts could become very hot. Children could be suffer burns by touching
these parts, in particular on the metallic parts
of the child restraint system. There is a risk of
injury.
If you and your child leave the vehicle, always make sure that the child restraint system is
not in direct sunlight. Cover it with a blanket,for example. If the child restraint system has
been exposed to direct sunlight, leave it to
cool down before securing the child in it.
Never leave children unattended in the vehi-
cle.
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
(Y page 36) and the information on the correct
use of the seat belt (Y page 37). Child restraint system
Observe the instructions for correct use of the
child restraint system (Y page 51).
For safety reasons, Mercedes-Benz recom-
mends that you use only a child restraint system
recommended by Mercedes-Benz
(Y page 52). G
WARNING
If the child restraint system is incorrectly fit-
ted on the seat position suitable for this pur-
pose, it cannot perform its intended protec-
tive function. In the event of an accident,
sharp braking or a sudden change in direction, the child may not be held securely. There is an
increased risk of serious or even fatal injuries.
Observe the manufacturer's installation
instructions and the correct use for the child
restraint system. Make sure that the entire
surface of the child restraint system is resting
on the seat surface. Never place objects
under or behind the child restraint system,
e.g. cushions. Only use child restraint sys-
tems with the original cover designed for
them. Only replace damaged covers with gen- uine covers. Children in the vehicle
49Safety Z

Recommended category L child restraint systems
Weight categories Manufac-
turer Type Approval num-
ber(E1 ...) Order number
(A 000 ...)
2 Category 0:
up to 10 kg
up to approximately
6 months
Britax
Römer BABY SAFE plus II 04 301146 970 20 00
970 36 00
Category 0+:
up to 13 kg
up to approximately
15 months
Britax
Römer BABY SAFE plus II 04 301146 970 20 00
970 36 00
Category I:
9 kg to 18 kg
between approx-
imately 9 months and
4 years Britax
Römer DUO plus 04 301133 970 16 00
04 301133 970 21 00
970 37 00
Category II/III:
15 kg to 36 kg
between approx-
imately 4 years and
12 years
Britax
Römer KIDFIX 04 301198 970 18 00
970 22 00
04 301198 970 19 00
970 38 00
Britax
Römer KIDFIX XP 04 301304 970 61 00
Pets in the vehicle
G
WARNING
If you leave animals unsupervised or unse-
cured in the vehicle, they may push a button
or a switch, for example.
They could:
R activate vehicle equipment and become
trapped, for example
R switch vehicle systems on or off, thus
endangering other road users
In the event of an accident, sudden braking or
abrupt changes of direction, unsecured ani-
mals could be flung around the vehicle, injur-
ing the vehicle occupants. There is a risk of an accident and injury. Never leave animals unattended in the vehi-
cle. Always secure animals correctly during a
journey, e.g. in an animal transport box. Driving safety systems
Driving safety systems overview
In this section, you will find information about
the following driving safety systems:
R ABS ( Anti-lock BrakingSystem)
(Y page 54)
R BAS ( Brake Assist System) (Y page 54)
R COLLISION PREVENTION ASSIST PLUS
(Y page 55)
R Adaptive brake lights (Y page 57)
R ESP ®
(Electronic StabilityProgram)
(Y page 57)
2 Colour code 9H95. Driving safety systems
53Safety Z

Key
Important safety notes
United Kingdom only: G
WARNING
When the double locks are activated, the
doors can no longer be opened from the
inside. People in the vehicle can no longer get out, e.g. in hazardous situations. There is a
risk of injury.
Therefore, do not leave any people unsuper-
vised in the vehicle, particularly children, eld-
erly people or people in need of special assis-
tance. Do not activate the double lock when
people are in the vehicle.
If the vehicle has been locked from the outside, the double lock function is activated as stand-
ard. It is then not possible to open the doors
from inside the vehicle. You can deactivate the
double lock function by deactivating the interior
motion sensor (Y page 62). The doors can then
be opened from the inside after the vehicle has
been locked from the outside. The anti-theft
alarm system is triggered if the door is opened
from the inside. Switch off the alarm
(Y page 60).
All countries: G
WARNING
If children are left unsupervised in the vehicle, they can:
R open doors and endanger other persons or
road users
R climb out and be injured by the traffic
R operate vehicle equipment and, for exam-
ple, trap themselves.
Children could also set the vehicle in motion, for example by:
R releasing the parking brake
R shifting the automatic transmission out of
park position P
R starting the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave children unattended in the vehicle. Always
keep the key out of reach of children.
G
WARNING
If you attach heavy or large objects to the key, the key could be unintentionally turned in the
ignition lock. This could cause the engine to
be switched off. There is a risk of an accident.
Do not attach any heavy or large objects to the
key. Remove any bulky keyrings before insert-
ing the key into the ignition lock.
! Keep the key away from strong magnetic
fields. Otherwise, the remote control function could be affected.
Strong magnetic fields can occur in the vicin-
ity of powerful electrical installations.
Do not keep the key: R with electronic devices, e.g. a mobile phone
or another key
R with metallic objects, e.g. coins or metal foil
R inside metallic objects, e.g. a metal case
This can impair the key's function.
Vehicles with KEYLESS-GO start function: do
not keep the key on the luggage compartment
cover or in the luggage compartment. Other-
wise, the key may not be detected, e.g. when
starting the engine using the Start/Stop button.
A check that periodically establishes a radio
connection between the vehicle and the key
determines whether a valid key is in or in the
direct vicinity of the vehicle. This occurs, for
example:
R during engine start
R during driving
R when using HANDS-FREE ACCESS
R when the external door handles are touched
R during convenience closing Key
63Opening and closing Z

Further information about:
R unlocking the driver's door (Y page 70)
R locking the vehicle (Y page 70)
Inserting the emergency key element X
Push emergency key element ;completely
into the key until it engages and release
catch :is back in its basic position. Battery of the key
Important safety notes G
WARNING
Batteries contain toxic and corrosive substan- ces. If batteries are swallowed, it can result in
severe health problems. There is a risk of fatal injury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention immediately. H
Environmental note Batteries contain pollutants.
It is illegal to dispose of them with the household rubbish.
They must be collected sep-
arately and disposed of in anenvironmentally responsible
recycling system. Dispose of batteries in an
environmentally responsible
manner. Take discharged
batteries to a qualified spe-
cialist workshop or to a col-
lection point for used batter-
ies.
Mercedes-Benz recommends that you have the
batteries replaced at a qualified specialist work- shop. Checking the battery
X
Press the &or% button.
The battery is OK if battery check lamp :
lights up briefly.
The battery is discharged if battery check
lamp :does not light up briefly.
X Replace the battery (Y page 66).
If the key battery is checked within the signal
reception range of the vehicle, pressing the
& or% button:
R locks or
R unlocks the vehicle
i You can obtain a battery from any qualified
specialist workshop.
Replacing the battery You require a CR 2025 3 V cell battery.
X Take the emergency key element out of the
key (Y page 65). X
Press emergency key element ;into the
opening in the key in the direction of the arrow
until battery compartment cover :opens.
When doing so, do not hold battery compart-
ment cover :shut.
X Remove battery compartment cover :.66
KeyOpening and closing