
Securing from rolling away ............ 262
Towing away .................................. 232
Transporting .................................. 234
Unlocking (in an emergency) ........... 83
Unlocking (SmartKey) ...................... 79
Vehicle data ................................... 281
Vehicle dimensions ........................... 281
Vehicle emergency locking ................ 83
Vehicle identification number
see VIN
Vehicle identification plate .............. 274
Vehicle level
Active Body Control ABC ............... 140
Vehicle maintenance
see ASSYST PLUS
Vehicle tool kit .................................. 220
Video
see also Digital Operator's Man-
ual .................................................. 188
Video (DVD) ........................................ 164
VIN ...................................................... 274
Voice Control System
see Separate operating instructions
W
Warning and indicator lampsABS ................................................ 179
Brakes ........................................... 178
Check Engine ................................. 176
Coolant .......................................... 183
Distance warning ........................... 184 ESP ®
.............................................. 181
ESP ®
OFF ....................................... 182
General notes ................................ 176
Overview .......................................... 34
PASSENGER AIR BAG ...................... 43
Reserve fue l................................... 176
Restraint system ............................ 182
Seat belt ........................................ 177
Steering ......................................... 186
Tire pressure monitor .................... 185
Warranty .............................................. 24
Washer fluid
Display message ............................ 165
Wheel and tire combination
see Tires
Wheel bolt tightening torque ........... 266Wheel chock
...................................... 262
Wheels
Changing a whee l.......................... 261
Checking ........................................ 241
Cleaning ......................................... 217
Important safety notes .................. 240
Interchanging/changing ................ 261
Mounting a new whee l................... 265
Mounting a whee l.......................... 262
Removing a whee l.......................... 265
Storing ........................................... 262
Tightening torque ........................... 266
Wheel size/tire size ....................... 266
Window curtain air bag
Operation ......................................... 51
Windows
see Side windows
Windshield
Defrosting ...................................... 111
Infrared reflective .......................... 198
Windshield washer fluid
see Windshield washer system
Windshield washer system
Adding washer fluid ....................... 215
Notes ............................................. 280
Windshield wipers
Problem (malfunction) ................... 107
Replacing the wiper blades ............ 106
Switching on/of f........................... 106
Winter driving
Important safety notes .................. 242
Slippery road surfaces ................... 128
Snow chains .................................. 242
Winter operation
Summer tires ................................. 242
Winter tires
M+S tires ....................................... 242
Wiper blades
Cleaning ......................................... 217
Important safety notes .................. 106
Replacing ....................................... 106
Wooden trim (cleaning instruc-
tions) .................................................. 218
Workshop
see Qualified specialist workshop
20Index

Cockpit
FunctionPage
:Steering wheel paddle
shifters
~
;Combination switch103
=Horn
?Instrument cluster33
ADIRECT SELECT lever120
BOverhead control panel38
CControl panel for:
ÜLowering the rear
seat head restraints
~
Extending/retracting the
rear roller sunblind
198
Moves the seat-belt
extender forwards
46
PASSENGER AIR BAG indi-
cator lamp
43
Setting the brightness of
the instrument cluster light- ing and the COMAND dis-play
~
DClimate control systems110
FunctionPage
EIgnition lock115
Start/Stop button115
FAdjusts the steering wheel~
Steering wheel heating~
GCruise control lever130
HElectric parking brake126
IDiagnostics connection27
JOpens the hood210
KLight switch102
LControl panel for:
Activating Steering Assist
and Stop&Go Pilot
136
Switching on Active Lane
Keeping Assist
155
Deactivating PARKTRONIC142
Switching on the 360° cam-
era
146
Activating Night View
Assist
150
Switching on the head-up
display
~
32Cockpit
At a glance

Door control panel
FunctionPage
:sSeat ventilation~
;cSeat heating~
=wAdjusts the front-
passenger seat from the
driver's seat
~
?r 45=
Stores settings for the seat,
exterior mirrors and steer-
ing wheel
99
AAdjusts the seats electri-
cally
~
B7 Zª\
Adjusts and folds the exte-
rior mirrors in/out electri-
cally
~
FunctionPage
CW Opens/closes the
right side window
~
DW Opens/closes the
rear right side window
~
Ep Opens/closes the
trunk lid
87
FW Opens/closes the
rear left side window
~
GOpens the door~
H%& Unlocks/locks
the vehicle
~
IW Opens/closes the left
side window
~
Door control panel39
At a glance

and size of the child. Therefore, be sure to
observe the notes on the "Occupant Clas-
sification System (OCS)" (Ypage 51) and
on "Children in the vehicle" ( Ypage 60).
There you will also find instructions on rear-
ward and forward-facing child restraint sys- tems on the front-passenger seat.
R All other persons: depending on the clas-
sification of the person in the front-
passenger seat, the front-passenger front
air bag is enabled or deactivated( Y page 51). Be sure to observe the notes
on "Seat belts“ ( Ypage 44) and "Air bags"
( Y page 48). There you can also find infor-
mation on the correct seat position.
Seat belts
Introduction
Seat belts are the most effective means of
restricting the movement of vehicle occu-
pants in the event of an accident or the vehi-
cle rolling over. This reduces the risk of vehi- cle occupants coming into contact with parts
of the vehicle interior or being ejected from
the vehicle. Furthermore, the seat belt helps
to keep the vehicle occupant in the best posi- tion in relation to the air bag.
The seat belt system comprises:
R Seat belts
R Emergency Tensioning Devices and seat
belt force limiters
If the seat belt is pulled by the seat belt
extender quickly or with a jerky movement,
the belt retractor locks. The belt strap cannot
be extracted any further.
The Emergency Tensioning Device tightens
the seat belt in an accident, pulling the belt
close against the body. However it does not
pull the vehicle occupant back in the direction of the backrest.
The Emergency Tensioning Device does not
correct an incorrect seat position or the rout-
ing of an incorrectly fastened seat belt. When triggered, seat belt force limiters help
to reduce the force exerted by the seat belt on
the vehicle occupant.
The seat belt force limiters for the front seats
are synchronized with the front air bags,
which absorb part of the deceleration force.
This can reduce the force exerted on the vehi-
cle occupants during an accident.
!If the front-passenger seat is unoccupied,
do not insert the belt tongue into the buckle of the front-passenger seat. This may oth-
erwise lead to the triggering of the Emer-
gency Tensioning Device in the event of an accident, which will then need to be
replaced.
Important safety notes
The use of seat belts and child restraint sys-
tems is required by law in:
R all 50 states
R the U.S. territories
R the District of Columbia
R all Canadian provinces
Even where this is not required by law, all
vehicle occupants should correctly fasten
their seat belts before starting the journey.
GWARNING
If the seat belt is incorrectly fastened, it can-
not protect as intended. Furthermore, an
incorrectly fastened seat belt can cause addi- tional injury, for example, in an accident, dur-
ing braking or when abruptly changing direc-
tion. This poses an increased risk of injury or
even fatal injury.
Make sure that all vehicle occupants are
seated properly with a correctly fastened seat belt.
GWARNING
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
44Occupant safety
Safety

Rthe seat belt is not twisted.
Only then can the forces which occur be
distributed over the area of the belt.
R the shoulder section of the belt is always
routed across the center of your shoulder.
The shoulder section of the belt must not
come into contact with your neck or be
routed under your arm.
R the lap belt passes tightly and as low down
as possible across your lap.
The lap belt must always be routed across
your hip joints and not across your abdo-
men. This applies particularly to pregnant
women. If necessary, push the lap belt
down to your hip joint and pull it tight usingthe shoulder section of the belt.
R the seat belt is not routed across sharp,
pointed or fragile objects.
If you have such items located on or in your
clothing, e.g. pens, keys or eyeglasses,
store these in a suitable place.
R only one person is using a seat belt at a
time.
Infants and children must never travel sit-
ting on the lap of a vehicle occupant. In the
event of an accident, they could be crushed
between the vehicle occupant and seat
belt.
R objects are never secured with a seat belt if
the seat belt is also being used by one of the
vehicle's occupants.
Seat belts are only intended to secure and
restrain vehicle occupants. Always observe
the "Loading guidelines" for securing objects,
luggage or loads ( Ypage 196).
Fastening seat belts
Observe the safety notes on the seat belt (Y page 44) and the notes on correct use of
seat belts ( Ypage 45).
GWARNING
If the seat-belt extender is extended during
the journey, the seat belt is not fitted properly
on the body. The seat belt can then no longer
perform its intended protective function. This
poses an increased risk of injury or even fatal
injury.
Always make sure that the seat-belt extender is retracted during a journey.
Seat-belt extender
The seat-belt extender for the driver and frontpassenger helps you fasten your seat belt.
Seat-belt extender =is extended when the
respective door is closed and the SmartKey is
turned to position 1or 2in the ignition lock.
You can also extend seat-belt extender =
with seat-belt extender button ?.
X Press seat-belt extender button ?.
Seat-belt extender =extends.
Seat-belt extender =is retracted again if:
R the belt tongue is engaged in the seat belt
buckle.
R the belt tongue is not engaged in the seat
belt buckle within 60 seconds.
In this case, you can extend seat-belt
extender =again. Press seat-belt
extender button ?again.
46Occupant safety
Safety

Rthe respective door is opened.
R the SmartKey is turned to position 0in the
ignition lock.
R you release the seat backrest and fold it
forwards.
R the front-passenger seat is unoccupied
after approximately five seconds.
If you press seat-belt extender button ?
after this, seat-belt extender =will not
extend.
X Adjust the seat ( Ypage 96).
The seat backrest must be in an almost
vertical position.
X Pull the seat belt smoothly out of seat-belt
extender =and engage belt tongue ;
into belt buckle :.
The seat belt on the driver’s seat and the
front-passenger seat may be tightened
automatically, see "Belt adjustment"( Y page 47).
X If necessary, pull upwards on the shoulder
section of the seat belt to tighten the belt
across your body.
All seat belts except the driver's seat belt are
equipped with a special seat belt retractor to securely fasten child restraint systems in the
vehicle. Further information can be found
under "Special seat belt retractor"( Y page 61).
Releasing seat belts
!Make sure that the seat belt is fully rolled
up. Otherwise, the seat belt or belt tongue
will be trapped in the door or in the seat
mechanism. This could damage the door,
the door trim panel and the seat belt. Dam- aged seat belts can no longer fulfill their
protective function and must be replaced.
Visit a qualified specialist workshop.
X Press release button :and hold belt
tongue ;firmly and guide it back towards
seat belt extender =.
Seat belt adjustment
The seat-belt adjustment is an integral part of
the PRE-SAFE ®
convenience function. This
function adjusts the driver's and front-
passenger seat belt to the upper body of the
occupants.
The belt strap is tightened slightly when:
R the belt tongue is engaged in the buckle
when the seat-belt extender is retractedand
R the ignition is switched on
The seat-belt adjustment will apply a certain
retraction force if any slack is detected
between the vehicle occupant and the seat
belt. Do not hold on to the seat belt tightly
while it is adjusting.
Occupant safety47
Safety
Z

rest and the head restraint position accord-
ingly.
Only then can OCS be guaranteed to functioncorrectly. Always observe the child restraint
system manufacturer's installation instruc-tions.
Occupant Classification System opera-
tion (OCS)
:PASSENGER AIR BAG OFF indicator lamp
;PASSENGER AIR BAG ON indicator lamp
The indicator lamps inform you whether the
front-passenger front air bag is deactivated or
enabled.
X Press the Start/Stop button once or twice,
or turn the SmartKey to position 1or 2in
the ignition lock.
The system carries out self-diagnostics.
The PASSENGER AIR BAG OFF and
PASSENGER AIR BAG ON indicator lamps
must light up simultaneously for approx-
imately six seconds.
The indicator lamps display the status of the
front-passenger front air bag. R PASSENGER AIR BAG OFF :lights up: the
front-passenger front air bag is deactiva-
ted. It will then not be deployed in the event
of an accident.
R PASSENGER AIR BAG ON ;lights up: the
front-passenger front air bag is enabled. If,
in the event of an accident, all deployment criteria are met, the front-passenger front
air bag is deployed. If the status of the front-passenger front air
bag changes while the vehicle is in motion, an
air bag display message appears in the instru-
ment cluster ( Ypage 172). When the front-
passenger seat is occupied, always pay atten-
tion to the PASSENGER AIR BAG ON and
PASSENGER AIR BAG OFF indicator lamps. Be aware of the status of the front-passenger
front air bag both before and during the jour- ney.
GWARNING
If the PASSENGER AIR BAG OFF indicator
lamp is lit, the front-passenger front air bag is disabled. It will not be deployed in the event of
an accident and cannot perform its intended
protective function. A person in the front-
passenger seat could then, for example, come
into contact with the vehicle's interior, espe-
cially if the person is sitting too close to the
dashboard. This poses an increased risk of
injury or even fatal injury.
When the front-passenger seat is occupied,
always ensure that:
R the classification of the person in the front-
passenger seat is correct and the front-
passenger front air bag is enabled or disa-
bled in accordance with the person in the
front-passenger seat
R the front-passenger seat has been moved
back as far back as possible.
R the person is seated correctly.
Make sure, both before and during the jour-
ney, that the status of the front-passenger
front air bag is correct.
GWARNING
If you secure a child in a rearward-facing child
restraint system on the front-passenger seat
and the PASSENGER AIR BAG ON indicator
lamp is lit up, the front-passenger front air bag may deploy in an accident. The child could be
struck by the air bag. This poses an increased risk of injury or even fatal injury.
52Occupant safety
Safety

Deployment of Emergency TensioningDevices and air bags
Important safety notes
GWARNING
The air bag parts are hot after an air bag has
been deployed. There is a risk of injury.
Do not touch the air bag parts. Have a
deployed air bag replaced at a qualified spe-
cialist workshop as soon as possible.
GWARNING
A deployed air bag no longer offers any pro-
tection and cannot provide the intended pro-
tection in an accident. There is an increased
risk of injury.
Have the vehicle towed to a qualified special- ist workshop in order to have a deployed air
bag replaced.
It is important for your safety and that of your
passenger to have deployed air bags replaced and to have any malfunctioning air bags
repaired. This will help to make sure the air
bags continue to perform their protective
function for the vehicle occupants in the
event of a crash.
GWARNING
Pyrotechnic Emergency Tensioning Devices
that have been deployed are no longer opera-
tional and are unable to perform their inten-
ded protective function. This poses an
increased risk of injury or even fatal injury.
Therefore, have pyrotechnic Emergency Ten-
sioning Devices which have been triggered
immediately replaced at a qualified specialistworkshop.
An electric motor is used by PRE-SAFE ®
to
trigger the tightening of the seat belt in haz-
ardous situations. This procedure is reversi-ble.
If Emergency Tensioning Devices are trig-
gered or air bags are deployed, you will hear a bang, and a small amount of powder may also be released. The
6restraint system warn-
ing lamp lights up.
Only in rare cases will the bang affect your
hearing. The powder that is released gener-
ally does not constitute a health hazard, but it may cause short-term breathing difficulties in
people with asthma or other respiratory prob-
lems. To avoid this, you may wish to get out of
the vehicle or open the windows as soon as it is safe to do so.
Air bags and pyrotechnic Emergency Tension-
ing Devices (ETDs) contain perchlorate mate-
rial, which may require special handling and
regard for the environment. National guide-
lines must be observed during disposal. In
California, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm .
Method of operation
During the first stage of a collision, the
restraint system control unit evaluates impor-
tant physical data relating to vehicle deceler-
ation or acceleration, such as:
R duration
R direction
R intensity
Based on the evaluation of this data, the
restraint system control unit triggers the
Emergency Tensioning Devices during a fron-
tal or rear collision.
An Emergency Tensioning Device can only be triggered, if: R the ignition is switched on
R the components of the restraint system are
operational; see "Restraint system warning lamp" ( Ypage 43)
R the belt tongue is engaged in the buckle on
the respective front-passenger seat
The Emergency Tensioning Devices in the
rear compartment are triggered independ-
ently of the lock status of the seat belts.
Occupant safety57
Safety
Z