Gear indicator (on-board com-
puter)
.................................................. 245
Genuine parts ...................................... 21
Glove box ........................................... 295 H
Handbrake see Parking brake
HANDS-FREE ACCESS ..........................90
Hazard warning lamps ...................... 122
Head bags
Display message ............................ 257
Head restraints
Adjusting ....................................... 105
Adjusting (manually) ...................... 105
Adjusting (rear) .............................. 106
Head-up display
Adjusting the brightness ............... .242
Function/notes ............................ .229
Important safety notes .................. 229
Setting the position ....................... 242
Storing settings (memory func-
tion) ............................................... 117
Switching on or off ......................... 229
Switching the display on/off ......... 242
Headlamps
Fogging up ..................................... 125
see Automatic headlamp mode
Heating
see Climate control
High beam flasher .............................122
High-beam headlamps
Adaptive Highbeam Assist PLUS .... 123
Display message ............................ 261
Switching on/off ........................... 122
Hill start assist .................................. 150
HOLD function
Activating ....................................... 189
Deactivating ................................... 189
Display message ............................ 271
Function/notes ............................ .188
Hood
Closing .......................................... .319
Display message ............................ 276
Important safety notes .................. 318
Opening ......................................... 318
Horn ...................................................... 30 Hydroplaning
..................................... 174 I
Ignition lock see Key positions
Immobilizer .......................................... 75
Indicator and warning lamps
COLLISION PREVENTION ASSIST
PLUS .............................................. 289
Indicator lamps
see Warning and indicator lamps
Indicators
see Turn signals
Instrument cluster
Overview .......................................... 31
Warning and indicator lamps ........... 32
Instrument cluster lighting ................ 33
Interior lighting
Control .......................................... .125
Emergency lighting ........................ 126
Overview ........................................ 125
Reading lamp ................................. 125 J
Jack Using ............................................. 379
Jump starting (engine) ......................345 K
Key positions SmartKey ....................................... 147
Start/Stop button .......................... 147
KEYLESS-GO
Convenience closing feature ............ 95
Deactivation ..................................... 79
Locking ............................................ 79
Unlocking ......................................... 79
Kickdown
Driving tips ................................... .158
Knee bag .............................................. 50 L
Lamps see Warning and indicator lamps Index
11
Roof load (maximum)
........................ 397S
Safety Occupant Classification System
(OCS) ............................................... 51
see Operating safety
Safety system
see Driving safety systems
Seat belts
Adjusting the driver's and front-
passenger seat bel t......................... 47
Cleaning ......................................... 333
Correct usage .................................. 45
Fastening ......................................... 46
Important safety guidelines ............. 44
Introduction ..................................... 44
Releasing ......................................... 47
Warning lamp ................................. 279
Warning lamp (function) ................... 48
Seating
Seating comfort packag e............... 107
Seating comfort package ................. 107
Seats
Active multicontour seat ................ 107
Adjusting (electrically) ................... 104
Adjusting the 4-way lumbar sup-
port ................................................ 107
Adjusting the head restraint .......... 105
Cleaning the cover ......................... 332
Correct driver's seat position ........ 102
EASY-ENTRY/EXIT system ............. 112
Folding the backrests forward/
back ............................................... 106
Important safety notes .................. 103
Seat backrest display message ..... 276
Seat heating .................................. 107
Seat heating problem .................... 109
Seat ventilation .............................. 109
Seat ventilation problem ................ 110
Storing settings (memory func-
tion) ............................................... 117
Switching seat heating on/of f....... 107
Switching seat ventilation on/of f.. 109
Section
Wheels and tires ............................ 356 Selector lever
Cleaning ......................................... 332
see Automatic transmission
Sensors (cleaning instructions) ....... 329
Service menu (on-board com-
puter) .................................................. 239
Service products
Brake fluid ..................................... 394
Coolant (engine) ............................ 395
Engine oil ....................................... 393
Fuel ................................................ 392
Important safety notes .................. 391
Refrigerant (air-conditioning sys-
tem) ............................................... 396
Washer fluid ................................... 396
Settings
Factory (on-board computer) ......... 244
On-board compute r....................... 239
SETUP (on-board computer) ............. 245
Side impact air bag ............................. 50
Side marker lamp (display mes-
sage) ................................................... 262
Side windows
Cleaning ......................................... 329
Convenience closing feature ............ 95
Convenience opening feature .......... 95
Important safety information ........... 93
Opening/closing .............................. 94
Problem (malfunction) ..................... 97
Resetting ......................................... 96
SmartKey
Changing the battery ....................... 82
Changing the programming ............. 80
Checking the battery ....................... 82
Convenience closing feature ............ 95
Convenience opening feature .......... 95
Display message ............................ 277
Door central locking/unlocking ....... 79
Important safety notes .................... 78
KEYLESS-GO start function .............. 80
Loss ................................................. 83
Mechanical key ................................ 81
Overview .......................................... 78
Positions (ignition lock) ................. 147
Problem (malfunction) ..................... 83
Starting the engine ........................ 150
Snow chains ...................................... 35916
Index
Cockpit
Function Page
0043
Steering wheel paddle
shifters
159
0044
Combination switch 122
0087
Horn
0085
Instrument cluster 31
0083
DIRECT SELECT lever 155
0084
Overhead control panel 37
006B
Control panel for:
00CA
Lowering the rear
seat head restraints 106
0094
Extending/retracting
the rear roller sunblind 300
Moving 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 006C
Climate control systems 132 Function Page
006D
Ignition lock 147
Start/Stop button 147
006E
Adjusts the steering wheel 110
Steering wheel heating 111
006F
Cruise control lever 176
0070
Electric parking brake 168
0071
Diagnostics connection 25
0072
Opens the hood 318
0073
Light switch 120
0074
Control panel for:
Activating Steering Assist
and Stop&Go Pilot
186
Switching on Active Lane
Keeping Assist 220
Deactivating PARKTRONIC 195
Switching on the 360° cam-
era 207
Activating Night View
Assist 213
Switching on the head-up
display
24230
CockpitAt a glance
Important safety notes
G
WARNING
Modifications to the restraint system may
cause it to no longer work as intended. The
restraint system may then not perform its
intended protective function and may fail in an accident or trigger unexpectedly, for example.
This poses an increased risk of injury or even fatal injury.
Never modify parts of the restraint system.
Never tamper with the wiring, the electronic
components or their software.
If it is necessary to modify an air bag system to
accommodate a person with disabilities, con- tact an authorized Mercedes-Benz Center for
details. USA only: for further information con- tact our Customer Assistance Center at
1-800-FOR-MERCedes (1 ‑800‑367‑6372).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 run-
ning. Therefore, malfunctions can be detec-
ted in good time.
The 0075 restraint system warning lamp in
the instrument cluster lights up when the igni- tion is switched on. It goes out no later than afew seconds after the vehicle is started. The
components of the restraint system are in
operational readiness.
A malfunction has occurred if the 0075
restraint 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 restraint system is malfunctioning, restraint system components may be triggered unin-
tentionally or might not be triggered at all in
the event of an accident with a high rate of vehicle deceleration. This can affect the Emer-
gency Tensioning Device or air bag, for exam-
ple. This poses an increased risk of injury or
even fatal injury.
Have the restraint system checked and
repaired in a qualified specialist workshop as
soon as possible. PASSENGER AIR BAG indicator lamp
PASSENGER AIR BAG OFF indicator lamp
0043
and PASSENGER AIR BAG ON indicator
lamp 0044are part of the Occupant Classifica-
tion System (OCS).
The indicator lamps display the status of the
front-passenger front air bag.
R PASSENGER AIR BAG OFF 0043lights 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 0044lights 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.
Depending on the person in the front-
passenger seat, the front-passenger front air
bag must either be deactivated or enabled;
see the following points. You must make sure
of this both before and during a journey.
R Children in a child restraint system:
whether the front-passenger front air bag is
enabled or deactivated depends on the
installed child restraint system, and the age Occupant safety
43Safety Z
R
the 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 using the 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 (Y page 294).
Fastening seat belts Observe the safety notes on the seat belt
(Y
page 44) and the notes on correct use of
seat belts (Y page 45). G
WARNING
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 front passenger helps you fasten your seat belt.
Seat-belt extender 0087is 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
0087
with seat-belt extender button 0085.
X Press seat-belt extender button 0085.
Seat-belt extender 0087extends.
Seat-belt extender 0087is 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 0087again. Press seat-belt
extender button 0085again. 46
Occupant safetySafety
R
the 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 0085
after this, seat-belt extender 0087will not
extend. X
Adjust the seat (Y page 102).
The seat backrest must be in an almost
vertical position.
X Pull the seat belt smoothly out of seat-belt
extender 0087and engage belt tongue 0044
into belt buckle 0043.
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 0043and hold belt
tongue 0044firmly and guide it back towards
seat belt extender 0087.
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 retracted
and
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 safety
47Safety Z
rest and the head restraint position accord-
ingly.
Only then can OCS be guaranteed to function correctly. Always observe the child restraint
system manufacturer's installation instruc-
tions.
Occupant Classification System opera-
tion (OCS) 0043
PASSENGER AIR BAG OFF indicator lamp
0044 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 0043lights 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 0044lights 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 (Y page 259). 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. G
WARNING
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. G
WARNING
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. 52
Occupant safetySafety
Deployment of Emergency Tensioning
Devices and air bags
Important safety notes G
WARNING
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. G
WARNING
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. G
WARNING
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 specialist workshop.
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
0075restraint 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" (Y page 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 safety
57Safety Z