
1, 2,
3...
12 Vsocket
see Sockets A
ABS (Anti-lock Braking System) Display message ............................ 233
Function/notes ................................ 62
Important safety notes ....................62
Warning lamp ................................. 257
Activating/deactivatin gair-recir-
culation mode .................................... 135
Activating/deactivating cooling
with air dehumidification .................131
Active Blin dSpot Assist
Activating/deactivating (on-
board computer) ............................ 224
Display message ............................ 246
Function/notes ............................. 199
Towing atrailer .............................. 202
Active Driving Assistanc epackage .199
Active Lane Keepin gAssist
Activating/deactivating (on-
board computer) ............................ 224
Display message ............................ 245
Function/informatio n.................... 202
Towing atrailer .............................. 204
Active light function .........................118
Active Service Syste mPLUS
see ASSYS TPLUS service interval
display
ADAPTIVE BRAKE .................................66
Adaptive brak elamps ......................... 63
Adaptive Highbeam Assist Function/notes ............................. 119
Adaptive Main-Beam Assist
Display message ............................ 241
Switching on/off (on-board com-
puter) ............................................. 227
Additional speedometer ...................225
Additives (engine oil) ........................336
Adjustin gthe headlamp range .........116
Airbag Headbag .......................................... 43Airbags
Activatio n......................................... 39
Front airba g(driver, front
passenger )....................................... 42
Important safety guidelines .............40
Kneeba g.......................................... .42
Pelvis airbag .................................... 43
Sidebag ............................................ 43
Windowba g...................................... 44
AIRCAP
Cleaning instructions .....................288
Extending/retracting .......................92
Fitting/removing the wind deflec-
tor .................................................... 94
General notes .................................. 92
Air-conditionin gsystem
see Climate control
Airf ilter (white display message) ....243
Airp ressure
see Tyr epressure
AIRSCARF
Setting the vents ........................... 143
Switching on/off ........................... 107
Airv ents
Glove compartmen t....................... 142
Important safety notes ..................141
Rea r............................................... 142
Setting ........................................... 141
Setting the AIRSCARF vents ..........143
Setting the centre airv ents........... 142
Setting the sid eairvents ............... 142
Switching AIRSCAR Fon/off .......... 107
Alarm system
see ATA (Anti-Theft Alarm system)
Alertnes sAssistant
see ATTENTION ASSIST
Anti-glare film .................................... 278
Anti-loc kBraking System
se eA BS (Anti-lock Braking System)
Anti-Thef tAlarm system
se eA TA (Anti-Theft Alarm system)
Anti-thef tsystem
Immobilise r...................................... 68
Aquaplaning ....................................... 168
Ashtray ............................................... 271
Assistanc emenu (on-board com-
puter) ................................................. .222 4
Index

Belt
see Sea tbelt
Belt force limiter s(activation) ...........39
Belt tensioner Activatio n......................................... 39
Function .......................................... .50
Blind Spo tAssist
Activating/deactivating .................224
Display message ............................ 246
Notes/function .............................. 196
Trailer towing ................................. 198
see Active Blind Spot Assist
Bonnet
Active bonnet (pedestrian protec-
tion) ............................................... 280
Closing .......................................... .282
Display message ............................ 250
Opening ......................................... 281
Boot
Emergency release ..........................81
Important safety guidelines .............79
Locking separatel y........................... 81
Opening (automatically from
inside) .............................................. 81
Opening (automatically from out-
side) ................................................ .80
Boo tlid
Display message ............................ 250
Opening/closing .............................. 79
Opening dimensions ......................343
Boot load (maximum)
see Technical data
Boot separator
Display message ............................ 251
General notes .................................. 92
Opening/closing .............................. 92
Brake Assist System
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 235
Notes ............................................. 336
Brake lamps
Adaptive .......................................... .63
Display message ............................ 239
Brakes
ABS .................................................. 62
BAS .................................................. 62
BAS PLUS ........................................ 62Brake fluid (notes)
.........................336
Display message ............................ 233
Driving tips .................................... 167
Important safety notes ..................167
Parking brake ................................ 166
Warning lamp ................................. 257
Breakdown
see Flat tyre
see Towing away/tow-starting
Bulbs
see Changing bulbs C
Calling up afault
see Display messages
Capacities
see Technical data
Car
see Vehicle
Care
AIRCAP .......................................... 288
Automatic car wash .......................286
Cabriolet soft top ........................... 288
Display ........................................... 291
Draught stop .................................. 289
Exterior lighting ............................. 290
High-pressure cleaner .................... 287
Matt paintwork .............................. 287
Notes ............................................. 285
Paint .............................................. 287
Plastic trim .................................... 291
Reversing camera ..........................290
Seat bel t........................................ 292
Seat cover ..................................... 292
Sensors ......................................... 290
Tai lpipes ....................................... 291
Trim pieces .................................... 292
Wheels ........................................... 287
Wind deflector ............................... 288
Windows ........................................ 289
Wiper blades .................................. 290
Wooden trim .................................. 292
Car key
see Key
Car wash (care) ................................. 286
CD player/CD changer(on-board
computer) .......................................... 2206
Index

Drinks holder
see Cup holders
Drive program
Automati c...................................... 157
Display ........................................... 155
Manual .......................................... .158
Driver's door
see Door
Driver's seat
see Seats
Driv esystem
Active Blind Spot Assist .................199
Driving abroad
Service24h .................................... 285
Symmetrical dipped bea m............. 114
Driving on flooded roads ..................168
Driving safety system BAS PLUS (Brake Assist System
PLUS) .............................................. .62
Electroni cBrake-force Distribu-
tio n.................................................. 65
ESP ®
(Electroni cStability Pro-
gram) ............................................... 64
Important safety guidelines .............61
Driving safety systems
ABS (Anti-lock Braking System) .......62
ADAPTIVE BRAKE ............................. 66
Adaptive brake lamps ......................63
BAS (Brake Assist System) ..............62
ETS (Electroni cTraction System) .....64
Overview .......................................... 61
PRE-SAFE ®
Brake ............................ .66
Driving system
Active Lan eKeepin gAssist. ........... 202
Driving systems
Active Driving Assistance pack-
age ................................................. 199
ATTENTION ASSIST ........................194
Blind Spot Assist ............................ 196
Cruise control ................................ 169
Display message ............................ 244
Distronic Plu s................................ 171
Dynami chandlin gpackage with
sports mod e.................................. 183
HOLD function ............................... 184
Lane Keeping Assist ......................198
Lane package ................................ 196Parking Guidance ........................... 189
Parktroni
c...................................... 185
Reversing camera ..........................192
Speed Limi tAssist ......................... 195
Speedtronic ................................... 180
Driving tips
Aquaplaning ................................... 168
Automatic transmission .................155
Brakes ........................................... 167
DISTRONI CPLUS ........................... 179
Downhill gradient ........................... 167
Driving abroad ............................... 114
Driving in winter ............................ .168
Driving on flooded road s................ 168
Driving on wet road s...................... 168
General .......................................... 166
Icy road surfaces ........................... 169
Limited braking efficiency on sal-
ted road s....................................... 167
New brake pads/linings ................168
Running-in tips ............................... 146
Snow chains .................................. 320
Symmetrical dipped bea m............. 114
Towing atrailer .............................. 204
Tyr egrip ........................................ 168
Wet road surface ........................... 167
DVD audio (on-board computer) ......220
Dynamic handling package with
sports mode ....................................... 183 E
EASY-ENTRY feature .........................104
Activating/deactivating .................230
Function/notes ............................. 108
EASY-EXIT feature
Crash-responsive ........................... 109
Function/notes ............................. 108
Switching on/off ........................... 230
EBD (electronic brake force distri-
bution)
Display message ............................ 234
Function/notes ................................ 65
ECOs tart/stop function
Deactivating/activating .................151
General information .......................150
Electrical fuses
see Fuses Index
9

Trip meter
Calling up ....................................... 217
Resetting (on-boar dcomputer) ......218
Trip odometer
see Trip meter
Turn signals
Changing bulbs (front) ...................123
Switching on/off ........................... 116
TV
Operating (on-board computer) .....220
see Separate operating instructions
Two-way radio
Frequencies ................................... 331
Installatio n..................................... 331
Transmission output (maximum ).... 331
Type identification plate
see Vehicle identification plate
Tyre pressure
Display message ............................ 249
Not reached (TIREFIT) ....................299
Pressure loss warning ....................322
Reached (TIREFIT) ..........................300
Recommended ............................... 321
Tyres
Checking ........................................ 318
Directio nofrotation ...................... 324
Display message ............................ 249
Gri p................................................ 168
Important safety notes ..................318
Replacing ....................................... 323
Service life ..................................... 319
Storing ........................................... 324
Tyr esize (data) .............................. 324
Tyr etread ...................................... 319
see Flat tyre U
Unladen weight see Technical data
Unlocking
Emergency unlocking .......................79
From insid ethe vehicle (central
unlocking button) ............................. 78 V
Vanity mirror (in sun visor) ..............271
Vehicle Correct use ...................................... 23
Data acquisition ............................... 23
Display message ............................ 250
Electronics ..................................... 331
Equipment ....................................... 21
Implied warranty .............................. 23
Individua lsettings .......................... 224
Leaving parked up .........................166
Locking (in an emergency) ...............79
Locking (key )................................... 72
Lowering ........................................ 304
Pulling away ................................... 149
Raising ........................................... 302
Registration ..................................... 22
Towing away .................................. 310
Tow-starting ................................... 310
Transporting .................................. 313
Unlocking (in an emergency) ...........79
Unlocking (key )................................ 72
Vehicle battery
see Battery (vehicle)
Vehicle data
see Technical data
Vehicle dimensions
see Technical data
Vehicle emergency locking ................79
Vehicle identification number see VIN
Vehicle identification plate ..............333
Vehicle tool kit .................................. 295
Vehicle weights see Technical data
Vents
see Air vents
Video DVD (on-board computer) ......220
VIN ...................................................... 333 W
Warning and indicator lamps ABS ................................................ 257
Brakes ........................................... 257
Distance warning signa l................. 262
ESP ®
.............................................. 258 Index
19

Warning and indicator lamps
Function Page
:
ESP
®
OFF 258
;
Diesel engine: preglow 148
=
Front foglamps 115
?
Rea
rfoglamp 116
A
Turn signal 116
B
ESP
® 258
C
Distance warning signal 262
D
Main-beam headlamps
117 Function Page
E
Dipped-beam headlamps 115
F
Seat belt 255
G
SRS 259
H
Engine diagnostics 260
I
Brakes 257
J
Coolant 260
K
ABS 257
L
Reserve fuel 26030
Instrument clusterAt
ag lance

Child-proof locks
Important safety notes G
WARNING
Do no tleave children unsupervised in the
vehicle, even if they are secured in achild
restraint system. They could injure them-
selves on parts of the vehicle. They could also
be seriously or even fatally injured by pro-
longed exposure to extreme heat or cold.
Do not expose the child restraint system to
direct sunlight. Parts of the child restraint sys-
tem could heat up and the child could burn
herself/himself on them.
If ac hild opens adoor, the child or other per-
sons could be injured as aresult. They could
get out and injure themselves or be injured by
ap assing vehicle.
Also observe the notes on HOLD .Relevant
information can be found in the index.
Override feature for the rear side win-
dows G
WARNING
Activate the override switch for the rear side
windows if children are travellin ginthe vehi-
cle. Otherwise, the children could open the
side windows while the vehicle is movin gand
injure themselves or others. X
To activate/deactivate: press button;.
If indicator lamp :is lit, operation of the
rear side windows is disabled. Operation is
only possible using the switches in the driv- er's door. If indicator lamp
:is off, oper-
ation is possible using the switches in the
rear compartment. Driving safety systems
Driving safety system
soverview
In this section, you will find information about
the following driving safety systems:
R ABS (Anti-lock BrakingSystem)
R BAS (Brake AssistSystem)
R BAS PLUS ( BrakeAssist System Plus*)
R Adaptive brake lamps
R ESP ®
(Electronic StabilityProgram)
R EBD( electronic brake force distribution)
R ADAPTIV EBRAKE
R PRE-SAFE ®
Brake Important safety notes
G
WARNING
The risk of an acciden tissignificantly
increased by driving too fast. This is particu-
larly the case when cornering as well as on
wet or slippery roads or when driving too close
to the vehicle in front.
The driving safety systems described in this
section can neither reduce this risk nor over-
ride the laws of physics.
For this reason, always adapty our driving
style to the prevailing road and weather con-
ditions. Maintain sufficient distance from
other road users and object sonthe road.
i Please notet hat the driving safety sys-
tems described only work as effectively as
possible when there is adequate contact
between the tyres and the road surface.
Pay particular attention to the information
regarding tyres, recommended minimum
tyre tread depths etc. in the "Wheels and
tyres" section (Y page 318). Driving safety systems
61Safety Z

In wintry driving conditions, alwaysu
se
winter tyres (M+S tyres) and if necessary,
snow chains. Only in this way willt he driv-
ing safety systems describe dinthis section
work as effectively as possible. ABS (Anti-loc
kBraking System)
Important safety notes i
Observe the "Important safety notes" sec-
tio n(Ypage 61).
ABS regulate sbrake pressure in such away
tha tthe wheels do not lock when you brake.
This allowsy ou to continue steering the vehi-
cle when braking.
ABS works from aspeed of about 8km/h
upwards, regardless of road-surface condi-
tions. ABS works on slippery surfaces, even
when you only brake gently. G
WARNING
If ABS is faulty, the wheels could lock when
braking. This limits the steerability of the vehi-
cle when braking and the braking distance
may increase.
If ABS is deactivated due to amalfunction,
then BAS and ESP are also deactivated. There
is an increased risk of your vehicle skidding in
certain situations.
You should always adapt your driving style to
suit the prevailing road and weather condi-
tions.
Braking If ABS intervenes when braking, you will feel
ap ulsing in the brake pedal.
X If ABS intervenes: continue to depress the
brake pedal with force until the braking sit-
uation is over.
X To make afull brake application:
depress the brake pedal with full force.
The pulsating brake pedal can be an indica-
tion of hazardous road conditionsa nd func-tions as
areminder to take extrac are while
driving. G
WARNING
Do not depress the brake pedal several times
in quick succession (pumping). Pumping the
brake pedal reduces the braking effect.Y ou
might otherwise not be able to stop the vehi-
cle in time and could cause an accident.
Depress the brake pedal firmly and smoothly. BAS (Brake Assist)
i Observe the "Important safety notes" sec-
tion (Y page 61).
BAS operates in emergenc ybraking situa-
tions. If you depress the brake pedal quickly,
BAS automatically boosts the braking force,
thus shortening the stopping distance.
X Keep the brake pedal firmly depressed until
the emergenc ybraking situation is over.
ABS prevent sthe wheels from locking.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated. G
WARNING
If BAS has malfunctioned, the braking system
remains available with full brake boosting
effect .However, braking force is not auto-
matically increased in emergenc ybraking sit-
uations and the stopping distance may
increase. BAS PLUS (Brake Assist System
PLUS)
BAS PLUS is only available on vehicles with
DISTRONIC PLUS.
i Observe the "Important safety notes" sec-
tion (Y page 61).
BAS PLUS provides braking assistance in haz-
ardous situations at speeds of over
30 km/ha nd uses rada rsensor technology
to assess the traffic situation. 62
Driving safet
ysystemsSafety

With the help of the radar sensor system, BAS
PLUS can detect obstacles that are in the
path of your vehicle for an extended period of
time.
At speeds up to approximately 70 km/h, BAS
PLUS may also detect stationar yobstacles,
for example, stopped or parked vehicles.
Should yo uapproach an obstacl eand BAS
PLUS ha sdetected ariskofc ollision, BAS
PLUS calculates the braking force necessary
to avoid arear-en dcollision. Should you apply
the brakes forcefully,B AS PLUS can auto-
matically increase the braking force to alevel
suitable for the traffic conditions.
If BAS PLUS demands particularly high brak-
ing force, preventative passenger protection
measures (PRE-SAFE ®
)a re activated simul-
taneously.
X Keep the brake pedal depressed until the
emergenc ybraking situation is over.
ABS prevent sthe wheels from locking.
The brakes will work normally again if:
R you release the brake pedal.
R there is no longer any danger of arear-end
collision.
R no obstacle is detected in front of your
vehicle.
BAS PLUS is then deactivated.
The radar sensor system is switched off auto-
matically in the vicinit yofradio telescope
facilities (Y page 345).
Vehicles without COMAND and anavigation
system and vehicles for Australia: the radar
sensor system and on-board computer must
be switched off in the vicinit yofradio tele-
scope facilities (Y page 229).
For BAS PLUS to assist you when driving, the
radar sensor system must be switched on and
operational; see "Radar sensor system" in the
index. G
WARNING
BAS PLUS cannot alwaysc learly identify
object sand complex traffic situations. BAS
PLUS cannot intervene in these cases. There is
arisk of an accident .Always pay
careful attention to the traffic situation and be
ready to brake.
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 sno worh eavy rain
R interference by other radar sources
R the possibilit yofstrong radar reflections,
for example in multi-storey car parks
R an arrow vehicle travellin ginfront,e.g. a
motorbike
R av ehicle travellin ginfront on adifferent
line G
WARNING
BA SP LUS does not react:
R to people or animals
R to oncomin gvehicles
R to crossin gtraffic
R when cornering
As aresult ,BAS PLUS may not intervene in
critical situations .There is arisk of an acci-
dent. Always pay careful attention to the traf-
fic situation and be ready to brake.
Following damage to the front end of the vehi-
cle, have the configuration and operation of
the radar sensors checked at aqualified spe-
cialist workshop. This also applies to colli-
sions at slow speeds where there is no visible
damage to the front of the vehicle.
If BAS PLUS is not available due to amalfunc-
tion in the radar sensor system, the brake
system remains available with full brake
boosting effect and BAS. Adaptive brake lamps
i Adaptive brake lamps are only available in
certain countries.
If you brake sharply from aspeed of more
than 50 km/h or if braking is assisted by BAS Driving safety systems
63Safety Z