
1, 2, 3 ...
12 Vsocket
see Socket
4ETS
see ETS/4ETS (Electronic Trac-
tionS ystem)
4MATIC (permanent four-wheel
drive) .................................................. 211
4MATIC off-road system ...................211 A
ABS (Anti-lock Braking System) Display message ............................ 269
Function/notes ................................ 70
Important safety notes ....................70
Warning lamp ................................. 301
Activating/deactivating air-recir-
culation mode .................................... 149
Activating/deactivating cooling
with air dehumidification .................145
Active Blin dSpot Assist
Activating/deactivating (on-
board computer) ............................ 257
Display message ............................ 285
Function/notes ............................. 229
Towing atrailer .............................. 232
Active Driving Assistance package .229
Active Lane Keeping Assist Activating/deactivating (on-
board computer) ............................ 257
Display message ............................ 284
Function/notes ............................. 232
Towing atrailer .............................. 234
Active light function .........................130
Active multicontour seat ..................112
Active Service System see ASSYST PLUS
ADAPTIVE BRAKE ................................. 76
Adaptive brake lamps .........................72
Adaptive Highbeam Assist Display message ............................ 278
Function/notes ............................. 131
Adaptive Main-beam Assist
Switching on/off (on-board com-
puter) ............................................. 260AdBlue
®
Display message ............................ 281
Filling capacity ............................... 440
Notes ............................................. 440
Service indicator ............................ 350
AdBlue ®
service indicator ................350
Additional speedometer ...................258
Additives (engine oil) ........................442
Adjusting the headlamp range .........128
Airbags Front airbag (driver, front
passenger )....................................... 46
Important safety guidelines .............44
Kneebag .......................................... .46
Pelvis airbag .................................... 47
Sidebag ............................................ 47
Triggering ......................................... 43
Windowba g...................................... 48
Air-conditioning system
see Climate control
Airf ilter (white display message) ....281
AIRMATIC Display message ............................ 282
Function/notes ............................. 208
Air pressure
see Tyre pressure
Airv ents
Glove compartmen t....................... 156
Important safety notes ..................155
Rea r............................................... 156
Setting ........................................... 155
Setting the centre air vents ...........156
Setting the side air vents ...............156
Alarm system
see ATA (Anti-Theft Alarm system)
Ambient lighting
Setting the brightness (on-board
computer) ...................................... 260
AMG RIDE CONTROL sports sus-
pension ............................................... 209
Anti-glare film .................................... 341
Anti-loc kBraking System
see ABS (Anti-lock Braking System)
Anti-Theft Alarm system
see ATA (Anti-Theft Alarm system)
Aquaplaning ....................................... 188
Ashtray ............................................... 3314
Index 

Convenience closing feature
..............97
Convenience opening/closing (air-
recirculation mode) ........................... 150
Convenience opening feature ............96
Coolan t(engine)
Checkin gthe level ......................... 348
Display message ............................ 279
Important safety notes ..................442
Temperature (on-board computer) .264
Temperature gauge ........................ 246
Warning lamp ................................. 305
Cooling
see Climate control
Cornering light function
Display message ............................ 275
Function/notes ............................. 130
Crash-responsive emergency light-
ing ....................................................... 134
Cruise control Activatio ncondition s..................... 190
Cruise control leve r....................... 190
Deactivating ................................... 192
Display message ............................ 287
Driving system ............................... 189
Important safety notes ..................189
LIM indicator lamp .........................190
Selecting ........................................ 190
Setting aspeed .............................. 191
Storing and maintaining current
speed ............................................ .190
Cup holder
Centre console .............................. 328
Folding bench sea t........................ 329
Important safety notes ..................328
Rea rcompartmen t......................... 328 D
Dashboard see Instrument cluster
Dashboard lighting
see Instrument cluster lighting
Data
see Technical data Daytime driving lights
Display message ............................ 278
Function/notes ............................. 125
Switching on/off (on-board com-
puter) ............................................. 259
Dealership
see Qualified specialist workshop
Delaye dswitch-off
Exterio rlighting (on-board com-
puter )............................................. 260
Interior lighting .............................. 261
Diagnostics connection ......................25
Diesel particle filter ..........................186
Digital speedometer .........................250
Dipped-beam headlamps Changing bulbs .............................. 136
Display message ............................ 275
Setting for driving abroad (sym-
metrical) ........................................ 124
Setting for driving on the right/
left ................................................. 260
Switching on/off ........................... 126
DIRECT SELECTl ever
see Automatic transmission
Displa ymessage
ASSYS TPLUS ................................ 349
General information .......................268
Hiding (on-board computer) ...........268
KEYLESS-GO .................................. 297
Display messages
Calling up (on-board computer) .....268
Driving systems ............................. 282
Engine ............................................ 279
Key ................................................ 297
Lights ............................................ .275
Safety systems .............................. 269
Tyres .............................................. 289
Vehicle .......................................... .293
Distance display (on-board com-
puter) ................................................. .256
Distance warning signal (warning
lamp) .................................................. 307
DISTRONIC PLUS Deactivating ................................... 203
Display message ............................ 286
Displays in the multifunctio ndis-
play ................................................ 202
Function/notes ............................. 1958
Index 

R
move the front-passenger seat as far back
as possible. This is especially important if
you have secured a child in a child restraint
system on the front-passenger seat.
R vehicle occupants –inparticular, children
–m ust no tlean their heads into the area of
the window in which the sidebag/window-
bag is deployed.
R rearward-facing child restraint systems
must not be fitted to the front-passenger
seat unless the front-passenger airbag has
been disabled. On the front-passenger
seat, the front-passenger airbag is disabled
if a child restraint system with a trans-
ponder for automatic child seat recognition
is fitted to the front-passenger seat in a
vehicle equipped with automatic child seat
recognition. The 4PASSENGER AIRBAG
OFF indicator lamp must be continuously
lit.
If the front-passenger seat of your vehicle
does not have automatic child seat recog-
nition, or your rearward-facing child
restraint system does not have a trans-
ponder for automatic child seat recogni-
tion, children must be secured in a child
restraint system on a suitable seat in the
rear. If you secure a forward-facing child
restraint system to the front-passenger
seat, you must move the front-passenger
seat as far back as possible.
R make sure there are no heavy or sharp-
edged objects in the pockets of clothing.
R do not lean forwards, e.g. over the cover of
the driver's/front-passenger front airbag,
particularly when the vehicle is in motion.
R do not put your feet on the dashboard.
R only hold the steering wheel on the outside.
This allows the airbag to be fully deployed.
You could be injured if the airbag is
deployed and you are holding the inside of
the steering wheel.
R do not lean on the doors from inside the
vehicle. R
make sure that there are no people, ani-
mals or objects between the vehicle occu-
pants and the area where the airbags are
deployed.
R do not place any objects between the seat
backrest and the door.
R do not hang any hard objects, e.g. coat
hangers, on the grab handles or coat hooks.
R do not attach accessories, e.g. cup holders,
to the doors.
It is not possible to rule out a risk of injury
being caused by an airbag, due to the high
speed at which the airbag must be deployed. G
WARNING
Airbag functionality can only be assured if the
following parts are not covered and no badges
or stickers are attached to them:
R padded steering wheel boss
R kneebag cover below the steering column
R front-passenger airbag cover
R outer side of fron tseat bolsters
R side trim next to the rear seat backrest
R roof frame cover between the fron tA-pillar
and the C-pillar in the rear compartment G
WARNING
Whe nana irbag deploys, a small amount of
powder is released .The powder may cause
short-term breathing difficulties to persons
suffering from asthma or other pulmonary
conditions.
In order to prevent potential breathing diffi-
culties, you should leave the vehicle as soon
as it is safe to do so. You can also open the
window to allow fresh air to enter the vehicle
interior. The powder does not constitute a
health hazard and does not indicate that there
is a fire in the vehicle. G
WARNING
The airbag parts are hot after the airbag has
been deployed. Do not touch them as you
could burn yourself. Occupant safety
45Safety
Z 

atio
nis possible using the switches in the
rear compartment. 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 70)
R BAS ( Brake Assist System) (Y page 71)
R BAS PLUS(Brake AssistSystem PLUS)
(Y page 71)
R Adaptive brake lamps (Y page 72)
R ESP ®
(Electronic StabilityProgram)
(Y page 72)
R EBD ( electronic brake force distribution)
(Y page 76)
R ADAPTIVE BRAKE (Y page 76)
R PRE-SAFE ®
Brake (Y page 76) Important safety notes
G
WARNING
Hybrid vehicles: ensure that you read the
"HYBRID" supplement. You could otherwise
fail to recognise dangers.
If you fail to adapty our driving style or if you
are inattentive, the driving safety systems can
neither reduce the risk of accident nor over-
ride the laws of physics. Driving safety sys-
tems are merely aids designed to assist driv-
ing. You are responsible for the distance to
the vehicle in front, for vehicle speed and for
braking in good time. Always adapt your driv-
ing style to suit the prevailing road and
weather conditions and maintain a safe dis-
tance from the vehicle in front. Drive care-
fully.
i The driving safety systems described only
work as effectively as possible when there
is adequate contact between the tyres and the road surface. Please pay special atten-
tion to the notes on tyres, recommended
minimum tyre tread depths, etc.
(Y
page 380).
In wintry driving conditions, always use
winter tyres (M+S tyres) and, if necessary,
snow chains. Only in this way will the driv-
ing safety systems described in this section
work as effectively as possible. ABS (Anti-lock Braking System)
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 70). G
WARNING
If ABS is faulty, the wheels could lock when
braking. The steerability and braking charac-
teristics may be severely impaired. Addition-
ally, further driving safety systems are deac-
tivated. There is an increased danger of skid-
ding and accidents.
Drive on carefully. Have ABS checked imme-
diately at a qualified specialist workshop.
When ABS is malfunctioning, other systems,
including driving safety systems, will also
become inoperative. Observe the information
on the ABS warning lamp (Y page 301) and
display messages which may be shown in the
instrument cluster (Y page 269).
ABS regulates brake pressure in such a way
that the wheels do not lock when you brake.
This allows you to continue steering the vehi-
cle when braking.
ABS works from a speed of about 8 km/h
upwards, regardless of road-surface condi-
tions. ABS works on slippery surfaces, even
when you only brake gently.
The yellow !ABS warning lamp in the
instrument cluster lights up when the ignition
is switched on. It goes out when the engine is
running. 70
Driving safety systemsSafety 

You can prevent the intervention of the PRE-
SAFE ®
Brake at any time by:
R depressing the accelerator pedal further
R activating kickdown
R releasing the brake pedal.
The braking action of PRE-SAFE ®
Brake is
ended automatically if:
R you manoeuvre to avoid the obstacle.
R there is no longer any danger of a rear-end
collision.
R there is no longer an obstacle detected in
front of your vehicle.
With the help of the radar sensor system,
PRE-SAFE ®
Brake can detect obstacles that
are in front of your vehicle for an extended
period of time.
At speeds up to approximately 70 km/h, PRE-
SAFE ®
Brake can also detect stationary
obstacles such as stopped or parked vehi-
cles.
If you approach an obstacle and PRE-SAFE ®
Brake detects a risk of a collision, the system
will alert you both visually and acoustically. If
you do not brake or take evasive action, the
system will warn you by automatically braking
the vehicle gently. If there is an increased risk
of collision, preventative passenger protec-
tion measures (PRE-SAFE ®
) are activated
(Y page 50). If, at speeds over 30 km/h, a risk
of collisio nremains and you do not brake,
take evasive action or significantly acceler-
ate, automatic braking may be performed up
to a level of automatic emergency braking.
Automatic emergency braking is not per-
formed until immediately prior to an accident
that can no longer be avoided. G
WARNING
PRE-SAFE ®
Brake will initially brake your vehi-
cle by a partial application of the brakes if a
danger of collision is detected. There may be
a collision unless you also brake. Automatic
emergency braking cannot prevent a colli-
sion. There is a risk of an accident. Always apply the brakes yourself and try to
take evasive action.
G
WARNING
PRE-SAFE ®
Brake cannot always clearly iden-
tify objects and complex traffic conditions.
In these cases, PRE-SAFE ®
Brake may:
R give an unnecessary warning and then
brake the vehicle
R neither give a warning nor intervene
There is a risk of an accident.
Always pay particular attention to the traffic
situation and be ready to brake, especially if
PRE-SAFE ®
Brake warns you. Terminate the
intervention in a non-critical driving situation.
In particular, the detection of obstacles can
be impaired if there is:
R dirt on the sensors or anything else cover-
ing the sensors
R snow or heavy rain
R interference by other radar sources
R the possibility of strong radar reflections,
for example, in multi-storey car parks
R a narrow vehicle travelling in front, e.g. a
motorcycle
R a vehicle travelling in front on a different
line G
WARNING
PRE-SAFE ®
Brake does not react:
R to people or animals
R to oncoming vehicles
R to crossing traffic
R when cornering
As a result, PRE-SAFE ®
Brake may neither
give warnings nor intervene in all critical sit-
uations. There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake.
In order to maintain the appropriate distance
to the vehicle in fron tand thus prevent a col-
lision, you must apply the brakes yourself. Driving safety systems
77Safety Z 

Useful information
i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variations are pos-
sible. Note that your vehicle may not be
equipped with all of the functions descri-
bed. This is also the case for systems and
functions relevant to safety.
i Read the information on qualified special-
ist workshops: (Y page 25). Correct driver's seat position
X
Observe the safety guidelines on seat
adjustment (Y page 107).
X Make sure that seat =is adjusted prop-
erly.
Manual and electrical seat adjustment
(Y page 108)
Electrical seat adjustment (Y page 108)
When adjusting the seat, make sure that:
R you are as far away from the driver's airbag
as possible.
R you are sitting in a normal upright position. R
you can fasten the seat belt properly.
R you have moved the backrest to an almost
vertical position.
R you have set the seat angle so that your
thighs are gently supported.
R you can depress the pedals properly.
X Check whether the head restraint is adjus-
ted properly.
When doing so, make sure that you have
adjusted the head restraint so that the back
of your head is supported at eye level by
the centre of the head restraint.
X Observe the safety guidelines on steering
wheel adjustment (Y page 117).
X Make sure that steering wheel :is adjus-
ted properly.
Adjusting the steering wheel manually
(Y page 117)
Adjusting the steering wheel electrically
(Y page 117)
When adjusting the steering wheel, make
sure that:
R you can hold the steering wheel with your
arms slightly bent.
R you can move your legs freely.
R you can see all the displays in the instru-
ment cluster clearly.
X Observe the safety guidelines for seat belts
(Y page 51).
X Check whether you have fastened seat
belt ;properly (Y page 52).
The seat belt should:
R fit snugly across your body
R be routed across the middle of your shoul-
der
R be routed in your pelvic area across the hip
joints
X Before starting off, adjust the rear-view mir-
ror and the exterior mirrors in such a way
that you have a good view of road and traf-
fic conditions (Y page 119).
X Vehicles with a memory function: save
the seat, steering wheel and exterior mirror 106
Correct driver's seat positionSeats, steering wheel and mirrors 

settings with the memory function
(Y
page 121). Seats
Important safety notes
G
WARNING
The seats can still be adjusted when there is
no key in the ignition lock. For this reason,
children should never be left unsupervised in
the vehicle. They could adjust the seats and
become trapped. G
WARNING
Only adjust the driver's seat when the vehicle
is stationary. You will otherwise be distracted
from the road and traffic conditions and you
could lose control of the vehicle as a result of
the seat moving. This could cause an acci-
dent. G
WARNING
If you adjust the seat height carelessly, you or
others could be trapped and thereby injured.
Children in particular could unintentionally
press the buttons to electrically adjust the
seats and become trapped.
Take care that:
R while moving the seats, your hands do not
get under the lever assembly of the seat
adjustment system.
R children in the vehicle do not slide their
hands under the levers. G
WARNING
Make sure that nobody can become trapped
when adjusting the seats.
Observe the notes on airbags.
Secure children as recommended; see the
"Children in the vehicle" section. G
WARNING
Make sure that the back of your head is sup-
ported at eye level by the central area of the head restraint. If your head is not supported
correctly by the head restraint, you could suf-
fer a severe neck injury in the event of an
accident. Never drive if the head restraints are
not engaged and set correctly.
G
WARNING
As eat belt can only offer its intended degree
of protection when the backrest is almost ver-
tical and the occupant is sitting upright. Avoid
seat positions that do not allow the seat belt
to be routed correctly. Adjust the backrest so
that it is as upright as possible. Never travel
with the backrest reclined too far backwards.
You could otherwise be seriously or even
fatally injured in the event of an accident or
sudden braking.
! To avoid damage to the seats and the seat
heating, observe the following information:
R do not spill any liquids on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
R if the seat covers are damp or wet, do not
switch on the seat heating. The seat
heating should also not be used to dry
the seats.
R clean the seat covers as recommended;
see the "Interior care" section.
R do not transport heavy loads on the
seats. Do not place sharp objects on the
seat cushions, e.g. knives, nails or tools.
The seats should only be occupied by
passengers, if possible.
R when the seat heating is in operation, do
not cover the seats with insulating mate-
rials, e.g. blankets, coats, bags, seat cov-
ers, child seats or booster seats.
! To avoid damage to the seats and the seat
heating, observe the following information:
R do not spill any liquids on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
R if the seat covers are damp or wet, do not
switch on the seat heating. The seat Seats
107Seats, steering wheel and mirrors Z 

only the turn signal lamp on the corre-
sponding side of the vehicle will flash.
X To switch off the hazard warning
lamps: press button :.
The hazard warning lamps automatically
switch on if:
R an airbag is deployed.
R the vehicle decelerates rapidly from a
speed of more than 70 km/ha nd comes to
a standstill.
The hazard warning lamps switch off auto-
matically if the vehicle reaches a speed of
over 10 km/h again after a full brake appli-
cation.
i The hazard warning lamps still operate if
the ignition is switched off. Headlamp cleaning system
The headlamps are cleaned automatically if
the "Wipe with washe rfluid" function is oper-
ated five times (Y page 137) while the lights
are on and the engine is running. When you
switch off the ignition, the automatic head-
lamp cleaning system is reset and counting is
resumed from 0. Intelligent Light System
General notes The Intelligent Light System is a system that
adjusts the headlamps automatically to suit
the prevailing driving and weathe
rconditions.
It offers advanced functions for improved illu-
mination of the road surface, e.g. depending
on the vehicle speed or weather conditions.
The system includes the active light function,
cornering light function, motorway mode and
extended range foglamps. The system is only
active when it is dark.
You can activate or deactivate the "Intelligent
Light System" using the on-board computer
(Y page 259). Active light function
The active light function is a system that
moves the headlamps according to the steer-
ing movements of the front wheels. In this
way, relevant areas remain illuminated while
driving. This allows you to recognise pedes-
trians, cyclists and animals.
Active: when the lights are switched on.
Cornering light function The cornering light function improves the illu-
mination of the road over a wide angle in the
direction you are turning, enabling better vis-
ibility in tight bends, for example. It can only
be activated when the dipped-beam head-
lamps are switched on.
Active:
if you are driving at speeds below
40 km/ha nd switch on the tur nsignal or turn
the steering wheel.
Not active: if you are driving at speeds above
40 km/h or switch off the turn signal or turn
the steering wheel to the straight-ahead posi-
tion. 130
Exterior lightingLights and windscreen wipers