
Hiding a service message .............. 237
Resetting the service interval dis-
play ................................................ 237
Service message ............................ 236
Special service requirements ......... 237
ATA (Anti-Theft Alarm system)
Activating/deactivating ................... 60
Function ........................................... 60
Switching off the alarm .................... 60
ATTENTION ASSIST
Activating/deactivating ................. 165
Display messag e............................ 185
Function/note s............................. 147
Authorised workshop
see Qualified specialist workshop
AUTO lights
Display message ............................ 182
see Lights
Automatic engine start (ECO start/
stop function) .................................... 106
Automatic engine switch-off (ECO
start/stop function) .......................... 105
Automatic front-passenger front
airbag deactivation system
Operation ......................................... 42
Problems ......................................... 45
System self-test ............................... 44
Automatic headlamp mode ................ 88
Automatic transmission
Accelerator pedal position ............. 112
Automatic drive program ............... 114
Changing gear ............................... 112
Display message ............................ 190
Double-clutch function .................. 112
Drive program display .................... 111
Driving tips .................................... 112
Emergency running mode .............. 117
Gliding mod e................................. 112
Kickdown ....................................... 112
Manual drive progra m.................... 114
Manual mod e................................. 115
Oil temperature (on-board com-
puter) ............................................. 167
Overview ........................................ 109
Problem (fault) ............................... 117
Pulling away ................................... 104
Rocking the vehicle free ................ 112
Starting the engine ........................ 104 Steering wheel gearshift paddle
s... 113
Transmission position display ........ 111
Transmission positions .................. 111
Automatic transmission emer-
gency running mode ......................... 117 B
Back button ....................................... 206
BAS (Brake Assist System) ................. 54
Battery (key)
Checking .......................................... 66
Important safety notes .................... 66
Replacing ......................................... 66
Battery (vehicle)
Charging ........................................ 252
Display message ............................ 184
Important safety notes .................. 250
Jump starting ................................. 253
Belt
see Seat belts
Belt tensioner
Activation ......................................... 46
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 165
Display message ............................ 186
Notes/function .............................. 151
Bluetooth ®
Connecting a different mobile
phone ............................................ 212
Searching for a mobile phone ........ 211
See also Digital Owner's Manua l... 205
Telephony ...................................... 211
Bonnet
Closing ........................................... 233
Display message ............................ 192
Important safety notes .................. 232
Opening ......................................... 232
Boot load (maximum) ........................ 281
Boot separator ................................... 218
Brake
EBD .................................................. 60
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 176
Notes ............................................. 279 Index
5

Indicator lamp .................................. 97
Information on using
THERMOTRONIC automatic cli-
mate control .................................... 96
Overview ........................................ 209
Overview of systems ........................ 95
Problem with the rear window
heating .............................................99
Problems with cooling with air
dehumidification .............................. 97
Setting the air distribution ............... 97
Setting the air vents ...................... 100
Setting the airflow ........................... 98
Setting the climate mode (multi-
media system) ............................... 209
Setting the temperature .................. 97
Switching air-recirculation mode
on/of f.............................................. 99
Switching on/of f.............................. 96
Switching the rear window heat-
ing on/of f........................................ 99
Switching the synchronisation
function on and off .......................... 98
Synchronisation function (multi-
media system) ............................... 210
THERMOTRONIC (2-zone) auto-
matic climate control ....................... 95
Climate control settings
Multimedia system ........................ 208
Cockpit
Overview .......................................... 27
Collapsible emergency spare
wheel
see Emergency spare wheel
COLLISION PREVENTION ASSIST
PLUS
Activating/deactivating ................. 164
Display message ............................ 177
Operation/note s.............................. 55
COMAND display
Cleaning ......................................... 242
Combination switch ............................ 89
Connecting a USB device
See also Digital Owner's Manua l... 205
Consumption statistics (on-board
computer) .......................................... 158
Controller ........................................... 206
Convenience closing feature .............. 75Convenience opening feature
............ 75
Convenience opening/closing (air-
recirculation mode) ............................. 99
Coolant (engine)
Checking the level ......................... 235
Display message ............................ 183
Important safety notes .................. 280
Temperature display in the instru-
ment cluster .................................. 155
Warning lamp ................................. 200
Cooling
see Climate control
Copyright ............................................. 26
Cornering light function
Display message ............................ 182
Cruise control
Cruise control lever ....................... 126
Deactivating ................................... 127
Display message ............................ 188
Driving system ............................... 126
LIM indicator lamp ......................... 126
Selecting ........................................ 126
Setting a speed .............................. 127
Storing and maintaining current
speed ............................................. 126
Cup holder
Centre console .............................. 220
Important safety notes .................. 220 D
Data see Technical data
Data carrier
Selecting ........................................ 161
Data modem mode
Telephone with Bluetooth ®
(SAP
profile) ........................................... 214
Daytime driving lights
Display message ............................ 182
Function/note s................................ 88
Dealership
see Qualified specialist workshop
Declarations of conformity ................. 24
Diagnostics connection ...................... 25
Digital Owner's Manual
Help ................................................. 21
Introduction ..................................... 21 Index
7

Reading lamp ..................................
.91
Setting brightness for display/
switches (on-board computer) ....... 165
Interior motion sensor
Deactivating ..................................... 62
Function ........................................... 61
Priming ............................................ 61
Switching off .................................... 62
iPod ®
See also Digital Owner's Manua l... 205 J
Jack Declaration of conformity ................ 24
Storage location ............................ 246
Using ............................................. 269
Jump starting (engine) ...................... 253K
Key Changing the battery ....................... 66
Checking the battery ....................... 66
Convenience closing feature ............ 75
Convenience opening feature .......... 75
Display message ............................ 194
Door central locking/unlocking ....... 64
Emergency key element ................... 65
Important safety notes .................... 63
KEYLESS-GO start function .............. 65
Loss ................................................. 67
Modifying the programming ............. 65
Overview .......................................... 63
Positions (ignition lock) ................. 103
Problem (malfunction) ..................... 67
Starting the engine ........................ 104
Key positions
Key ................................................ 103
Start/Stop button .......................... 102
KEYLESS-GO
Convenience closing ........................ 75
Deactivation ..................................... 64
Locking ............................................ 64
Start function ................................... 65
Unlocking ......................................... 64
KEYLESS-GO start function
Start/Stop button .......................... 102 Kickdown
Driving tips .................................... 112
Kneebag ............................................... 40 L
Lamps see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 165
Display message ............................ 186
Function/information .................... 153
Lane package ..................................... 151
Lap time (RACETIMER) ...................... 168
Licence plate lamp (display mes-
sage) ................................................... 182
Light sensor (display message) ....... 182
Lighting
see Lights
Lights
Automatic headlamp mod e.............. 88
Dipped-beam headlamp s................. 89
Driving abroad ................................. 88
Hazard warning lamps ..................... 90
Headlamp flashe r............................. 89
Light switch ..................................... 88
Main-beam headlamp s..................... 89
Misted up headlamp s....................... 91
Parking lamps .................................. 89
Rear foglamp ................................... 89
Setting brightness for display/
switches (on-board computer) ....... 165
Setting exterior lighting ................... 88
Side lamps ....................................... 89
Turn signals ..................................... 89
see Interior lighting
LIM indicator lamp
Cruise control ................................ 126
DISTRONIC PLUS ........................... 131
Variable SPEEDTRONIC ................. 128
Limiting the speed
see SPEEDTRONIC
Loading guidelines ............................ 217
Locking (doors)
Automatic ........................................ 70
Emergency locking ........................... 70 12
Index

Restraint system warning lamp
The functions of the restraint system are
checked after the ignition is switched on and at
regular intervals while the engine is running.
Therefore, malfunctions can be detected in
good time.
The 6 restraint system warning lamp on the
instrument cluster lights up when the ignition is switched on. It goes out no later than a few sec-
onds after the vehicle is started. The compo-
nents of the restraint system are in operational
readiness.
A malfunction has occurred if the 6restraint
system warning lamp:
R does not light up after the ignition is switched
on
R does not go out after a few seconds with the
engine running
R lights up again while the engine is running G
WARNING
If the restraint system is malfunctioning,
restraint system components may be trig-
gered unintentionally or may not deploy as
intended during an accident. This may affect
the seat belt tensioner or airbag, for example. This poses an increased risk of injury or even
fatal injury.
Have the restraint system checked and
repaired immediately at a qualified specialist
workshop. PASSENGER AIR BAG indicator lamp
PASSENGER AIR BAG ON indicator lamp
:and
PASSENGER AIR BAG OFF indicator lamp ;are
part of the automatic deactivation system of the front-passenger front airbag. The indicator lamps display the status of the
front-passenger front airbag.
R PASSENGER AIR BAG ON lights up for 60 sec-
onds, then both indicator lamps are off
(PASSENGER AIR BAG ON and OFF): the front-
passenger front airbag is able to deploy in the event of an accident.
R PASSENGER AIR BAG OFF lights up: the front-
passenger front airbag is disabled. It will then
not be deployed in the event of an accident.
If the PASSENGER AIR BAG ON indicator lamp is off, only the PASSENGER AIR BAG OFF indicator
lamp shows the status of the front-passenger
front airbag. The PASSENGER AIR BAG OFF indi-
cator lamp may be lit continuously or be off.
Depending on the person in the front-passenger seat, the front-passenger front airbag must be
either disabled or enabled; see the following
points. You must make sure of this both before
and during a journey.
R Children in a rearward-facing child
restraint system: the PASSENGER AIR BAG
OFF indicator lamp must be lit. The front-
passenger front airbag is disabled. Make sure
that you read the notes on the "Automatic
front-passenger front airbag deactivation sys-
tem" (Y page 41) and on "Children in the
vehicle" (Y page 49).
R Children in a forward-facing child
restraint system: depending on the installed
child restraint system and the age and size of
the child, the front-passenger front airbag is
either disabled or enabled. Therefore, make
sure that you read the notes on the "Auto-
matic front-passenger front airbag deactiva-
tion system" (Y page 41) and on "Children in
the vehicle" (Y page 49).
R All other persons: the PASSENGER AIR BAG
OFF indicator lamp must be off. The front-
passenger front airbag is enabled. Depending on the build of the person on the front-
passenger seat, the PASSENGER AIR BAG
OFF indicator lamp may light up. The front-
passenger front airbag is disabled. It will then
not be deployed in the event of an accident. In
this case, the front-passenger seat should not be used.
Make sure that you read the notes on the
"Automatic front-passenger front airbag
deactivation system" (Y page 41) as well as
on "Seat belts" (Y page 36) and "Airbags"
(Y page 38). There, you can also find infor-
mation on the correct seat position. Occupant safety
35Safety Z

R
EBD ( electronic brake force distribution)
(Y page 60)
R ADAPTIVE BRAKE (Y page 60)Important safety notes
If you fail to adapt your driving style or if you are
inattentive, the driving safety systems can nei-
ther reduce the risk of an accident nor override the laws of physics. Driving safety systems are
merely aids designed to assist driving. You are
responsible for maintaining the distance to the
vehicle in front, for vehicle speed, for braking in
good time, and for staying in lane. Always adapt
your driving style to suit the prevailing road and weather conditions and maintain a safe distancefrom the vehicle in front. Drive carefully.
The driving safety systems described only work
as effectively as possible when there is ade-
quate contact between the tyres and the road
surface. Please pay special attention to the
notes on tyres, recommended minimum tyre
tread depths etc. (Y page 261).
In wintry driving conditions, always use winter
tyres (M+S tyres) and, if necessary, snow
chains. Only in this way will the driving safety
systems described in this section work as effec-
tively as possible. ABS (Anti-lock Braking System)
General notes ABS regulates brake pressure in such a way that
the wheels do not lock when you brake. This
allows you to continue steering the vehicle when braking.
The ! ABS warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out when the engine is running.
ABS works from a speed of about 8 km/h,
regardless of road-surface conditions. ABS
works on slippery surfaces, even when you only brake gently.
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 54). 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.
If ABS is malfunctioning, other systems, includ-
ing driving safety systems, will also become
inoperative. Observe the information on the ABS warning lamp (Y page 197) and display mes-
sages which may be shown in the instrument
cluster (Y page 172).
Braking X
If ABS intervenes: continue to depress the
brake pedal with force until the braking sit-
uation is over.
X To make a full brake application: depress
the brake pedal with full force.
If ABS intervenes when braking, you will feel a
pulsing in the brake pedal.
The pulsating brake pedal can be an indication
of hazardous road conditions; this serves as a
reminder to take extra care while driving. BAS (Brake Assist System)
General notes BAS operates in emergency braking situations.
If you depress the brake pedal quickly, BAS
automatically boosts the braking force, thus
shortening the stopping distance.
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 54). G
WARNING
If BAS is malfunctioning, the braking distance
in an emergency braking situation is
increased. There is a risk of accident. 54
Driving safety systemsSafety

ESP
®
assists the driver when pulling away on
wet or slippery roads. ESP ®
can also stabilise
the vehicle during braking.
ETS (Electronic Traction System) i
Observe the "Important safety notes" sec-
tion (Y page 54).
ETS traction control is part of ESP ®
.
Traction control brakes the drive wheels indi-
vidually if they spin. This enables you to pull
away and accelerate on slippery surfaces, for
example if the road surface is slippery on one
side. In addition, more drive torque is transfer-
red to the wheel or wheels with traction.
Traction control remains active if you deactivate
ESP ®
.
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 54). G
WARNING
If ESP ®
is malfunctioning, ESP ®
is unable to
stabilise the vehicle. In addition, other driving
safety systems are switched off. This increa-
ses the risk of skidding and an accident.
Drive on carefully. Have ESP ®
checked at a
qualified specialist workshop.
When ESP ®
is deactivated, the åESP®
OFF
warning lamp lights up continuously.
When SPORT handling mode is activated, the
M warning lamp lights up in the instrument
cluster.
When the åandh warning lamps light up
continuously, ESP ®
is not available due to a mal-
function.
Observe the information on warning lamps
(Y page 197) and display messages which may
be shown in the instrument cluster
(Y page 172).
Only use wheels with the recommended tyre
sizes. Only then will ESP ®
function properly. Characteristics of ESP
® General notes
If the ÷ ESP warning lamp goes out before
beginning the journey, ESP ®
is automatically
active.
If ESP ®
intervenes, the ÷ESP®
warning lamp
flashes in the instrument cluster.
If ESP ®
intervenes:
X Do not deactivate ESP ®
under any circum-
stances.
X when pulling away, only depress the acceler-
ator pedal as far as is necessary.
X Adapt your driving style to suit the prevailing
road and weather conditions.
ECO start/stop function
The ECO start/stop function switches the
engine off automatically if the vehicle stops
moving. When pulling away again, the engine
starts automatically. ESP ®
remains in its previ-
ously selected status. Example:if ESP®
was
deactivated before the engine was switched off,
ESP ®
remains deactivated when the engine is
switched on again.
Deactivating/activating ESP ® Important safety notes
i Observe the "Important safety notes" sec-
tion (Y page 54).
You can select between the following ESP ®
sta-
tuses:
R ESP ®
is activated
R SPORT handling mode is activated
R ESP ®
is deactivated
ESP ®
is activated every time the engine is star-
ted, regardless of whether ESP ®
was deactiva-
ted before the engine was switched off. G
WARNING
If you deactivate ESP ®
, ESP ®
no longer sta-
bilises the vehicle. There is an increased risk
of skidding and an accident.
Only deactivate ESP ®
in the situations descri-
bed in the following. 58
Driving safety systemsSafety

Key functions
:
& Locks the vehicle
; F Opens the tailgate
= % Unlocks the vehicle
X To unlock centrally: press the%button.
If you do not open the vehicle within approx-
imately 40 seconds of unlocking:
R the vehicle locks again
R the anti-theft alarm system is primed again
X To lock centrally: press the&button.
The key centrally locks and unlocks the doors
and the fuel filler flap.
When unlocking, the turn signals flash once.
When locking, they flash three times.
You can also set an audible signal to confirm
that the vehicle has been locked. The audible
signal can be activated and deactivated via the
multimedia system (see the Digital Owner's
Manual).
When the locator lighting is activated via the
multimedia system, it lights up when it is dark
after the vehicle is unlocked with the key. Infor- mation on activating and deactivating the loca-
tor lighting can be found in the Digital Owner's
Manual.
X To open the tailgate: press and hold the
F button until the tailgate opens. KEYLESS-GO
General notes Bear in mind that the engine can be started by
any of the vehicle occupants if there is a key in
the vehicle (Y page 104). Locking and unlocking centrally You can start, lock or unlock the vehicle using
KEYLESS-GO. To do this, you need to carry the
key with you. You can combine the KEYLESS-GO functions with the functions of a conventional
key. Unlock the vehicle by using KEYLESS-GO,
for instance, and lock it using the &button
on the key.
The driver's door and the door at which the han- dle is used must both be closed. The key must be
outside the vehicle. When locking or unlocking
with KEYLESS-GO, the distance between the key and the corresponding door handle must not be greater than 1 m.
A check which periodically establishes a radio
connection between the vehicle and the key
determines whether a valid key is in the vehicle.
This occurs, for example:
R when starting the engine
R whilst driving
R when using HANDS-FREE ACCESS
R when the external door handles are touched
R during convenience closing X
To unlock the vehicle: touch the inner sur-
face of the door handle.
X To lock the vehicle: touch sensor surface :
or ;.
Make sure that you do not touch the inner
surface of the door handle.
X Convenience closing feature: touch
recessed sensor surface ;for an extended
period.
For further information on the convenience
closing feature (Y page 75).64
KeyOpening and closing

Deactivating and activating
If you do not intend to use the vehicle for an
extended period of time, you can deactivate
KEYLESS-GO. The key will then use very little
power, thereby conserving battery power. For
the purposes of activation or deactivation, the
vehicle does not have to be nearby.
X To deactivate: press the&button on the
key twice in rapid succession.
The battery check lamp of the key flashes
twice briefly and lights up once, then KEY-
LESS-GO is deactivated (Y page 66).
X To activate: press any button on the key.
or X Insert the key into the ignition lock.
KEYLESS-GO and all of its associated features
are available again. KEYLESS-GO start function
General notes Bear in mind that the engine can be started by
any of the vehicle occupants if there is a key in
the vehicle (Y page 104). Changing the settings of the locking
system
You can change the settings of the locking sys-
tem. This means that only the driver's door and
the fuel filler flap are unlocked when the vehicle is unlocked. This is useful if you frequently travel
alone.
X To change the setting: press and hold down
the % and& buttons simultaneously
for about six seconds until the battery indica-
tor lamp flashes twice (Y page 66).
If the setting of the locking system is changed
within the signal range of the vehicle, pressing
the & or% button:
R locks or
R unlocks the vehicle
The key now functions as follows:
X To unlock: press the%button once.
X To unlock centrally: press the%button
twice.
X To lock: press the &button. The KEYLESS-GO functions can be changed as
follows:
X To unlock the driver's door: touch the inner
surface of the door handle on the driver's
door.
X To unlock centrally: touch the inner surface
of the front-passenger door handle.
X To lock centrally: touch the outer sensor
surface on one of the door handles.
X To restore the factory settings: press and
hold down the %and& buttons simul-
taneously for approximately six seconds until
the battery check lamp flashes twice
(Y page 66). Emergency key element
General notes If the vehicle can no longer be unlocked with the
key or KEYLESS-GO, use the emergency key ele-
ment.
If you use the emergency key element to unlock
and open the driver's door, the anti-theft alarm
system will be triggered. Switch off the alarm
(Y page 60).
If you unlock the vehicle using the emergency
key element, the fuel filler flap will not be
unlocked automatically.
X To unlock the fuel filler flap: insert the key
into the ignition lock.
Removing the emergency key element X
Push release catch :in the direction of the
arrow and, at the same time, remove emer-
gency key element ;from the key. Key
65Opening and closing Z