2014 MERCEDES-BENZ M-Class child lock

Car wash (care)
................................. 370
CD player/CD changer (on-board
computer) .......................................... 270
Center console Lowe rsection .................................. 37
Uppe rsection .................................. 36
Central locking
Automatic locking (on-board
computer) ...................................... 276
Locking/unlocking (SmartKey) ........80
Changing bulbs
Brake lamps ................................... 132
High-beam headlamps ...................131
Important safety notes ..................129
Low-beam headlamps ....................130
Overview of bul btypes .................. 129
Parking lamps ................................ 131
Removing/replacing the cover
(front wheel arch) .......................... 130
Side marker lamps .........................131
Standing lamps (front) ...................131
Child-proof locks
Important safety notes ....................65
Rea rdoors ....................................... 66
Children
In the vehicle ................................... 60
Restraint systems ............................ 60
Specia lseat belt retractor ...............63
Child seat
LATCH-type (ISOFIX) child seat
anchors ............................................ 63
Top Tether ....................................... 64
Cigarette lighter ................................ 346
Cleaning Mirro rturn signal ........................... 373
Trailer tow hitch ............................. 374
Climate control
Automatic climate control (3-zone) 142
Controlling automatically ...............146
Cooling with aird ehumidification..145
Defrosting the windows .................150
Defrosting the windshield ..............149
Dual-zone automatic climate
control ........................................... 139
Important safety notes ..................138
Indicator lamp ................................ 146
Information on using 3-zone
automatic climate control ..............144 Maximum cooling
.......................... 149
Notes on using dual-zone
automatic climate control ..............141
Overview of systems ......................138
Problems with cooling with air
dehumidification ............................ 146
Problem with the rear window
defroster ........................................ 151
Rea rcontrol panel ......................... 142
Refrigerant ..................................... 451
Refrigerant filling capacity .............452
Setting the aird istribution.............148
Setting the airflow .........................148
Setting the airv ents...................... 152
Setting the climate mode (AIR
FLOW) ............................................ 147
Setting the temperature ................147
Switching air-recirculation mode
on/off ............................................ 151
Switching on/off ........................... 144
Switching residual hea ton/off ......151
Switching the rear window
defroster on/off ............................ 150
Switching the ZONE function on/
off .................................................. 149
Coat hooks ......................................... 340
Cockpit Overview .......................................... 32
see Instrument cluster
COLLISIO NPREVENTION ASSIST
Operation/note s.............................. 69
COMAND
ON&OFFROAD menu .....................252
see separate operating instructions
COMAND display
Cleaning ......................................... 375
Combination switch ..........................123
Combine dcargo cover and net ........339
Consumption statistics (on-board
computer) .......................................... 266
Convenience closing feature ..............95
Convenience opening feature ............95
Coolan t(engine)
Checkin gthe level ......................... 367
Display message ............................ 298
Filling capacity ............................... 451
Important safety notes ..................450
Temperature (on-board computer) .278 Index
7

Lap time (RACETIMER)
......................279
LATCH-type (ISOFIX) child seat
anchors ................................................ 63
Level control (display message) ......302
Level control (vehicles with
AIRMATIC package)
Basi csettings ................................ 210
Function/notes ............................. 209
Important safety notes ..................209
Level control (vehicles with the
ON&OFFROAD package)
Basi csettings ................................ 203
Function/notes ............................. 202
Important safety notes ..................202
License plate lamp (display
message) ............................................ 296
Light function ,active
Display message ............................ 297
Lighting
Ligh tswitc h................................... 120
Lights
Activating/deactivating the
interio rlighting delayed switch-off .276
Active light function .......................125
Automatic headlamp mode ............120
Cornering light function .................125
Driving abroad ............................... 120
Hazard warning lamps ...................124
High beam flasher .......................... 124
High-beam headlamps ...................124
Low-beam headlamps ....................121
Parking lamps ................................ 122
Rea rfog lamp ................................ 122
Setting the brightness of the
ambient lighting (on-board
computer) ...................................... 275
Setting the color of the ambient
lighting (on-board computer) .........275
Standing lamps .............................. 123
Switching Adaptive Highbeam
Assist on/off ................................. 275
Switching the daytime running
lamps on/off (on-board computer) 274
Switching the exterio rlighting
delayed switch-off on/off (on-
board computer )............................ 275Switching the surround lighting
on/off (on-board computer)
..........275
Turn signals ................................... 123
see Changing bulbs
see Interior lighting
Light sensor (display message) .......298
Loading guidelines ............................332
Locking see Centra llocking
Locking (doors)
Automatic ........................................ 88
Emergency locking ........................... 88
From inside (central locking
button) ............................................. 87
Locking centrally
see Centra llocking
Locking verification signal (on-
board computer) ............................... 276
Low-beam headlamps Changing bulbs .............................. 130
Display message ............................ 295
Setting for driving abroad
(symmetrical) ................................. 120
Switching on/off ........................... 121
LOW RANGE
Display message ............................ 304
Off-road gea r................................. 249
LOW RANGE off-road gear ................249
Luggage holde r(EASY-PACK load-
securing kit) ...................................... .341
Lumbar support Adjusting (on the seat) ..................108
Luxury head restraints .....................107 M
M+S tires ............................................ 400
Malfunction message see Display messages
Matte finish (cleaning instructions) 372
mbrace Call priority .................................... 354
Display message ............................ 289
Downloading destinations
(COMAND) ..................................... 354
Downloading route s....................... 358
Emergency call .............................. 351
General notes ................................ 350 Index
13

Geo fencin
g................................... 358
Locating astolen vehicl e............... 357
MB info call button ........................353
Remote vehicle locking ..................356
Roadside Assistance button ..........353
Search &Send ............................... 355
Self-test ......................................... 351
Speed alert .................................... 358
System .......................................... 351
Triggering the vehicle alarm ........... 359
Vehicle remote malfunction
diagnosi s....................................... 357
Vehicle remote unlocking ..............356
Mechanical key
Function/notes ................................ 82
Locking vehicle ................................ 88
Unlocking the driver's door ..............88
Memory card (audio) .........................270
Memory function ............................... 117
Message memory (on-board
computer) .......................................... 282
Messages see Display messages
Mirrors
see Exterior mirrors
see Rear-view mirror
see Vanity mirror (in the sun visor)
Mobile phone
Menu (on-board computer) ............270
Modifying the programming
(SmartKey) ........................................... 81
MOExtende dtires .............................. 382
Mounting wheels Lowerin gthe vehicle ...................... 426
Mounting anew wheel ................... 425
Raising the vehicle .........................423
Removing awheel .......................... 425
Securing the vehicle against
rolling away ................................... 422
MP3
Operation ....................................... 270
see separate operating instructions
Multifunction display
Function/notes ............................. 265
Permanent displa y......................... 274
Multifunction steering wheel
Operating the on-board computer .264
Overview .......................................... 35 N
Navigation Menu (on-board computer) ............268
see separate operating instructions
Night View Assist Plus
Activating/deactivating .................231
Cleaning ......................................... 375
Problem (malfunction) ...................233
Notes on breaking-in anew vehicle 156 O
Occupant Classification System
(OCS) Fault s............................................... 53
Operation ........................................ .49
System self-test ............................... 51
Occupant safety
Childre ninthe vehicle ..................... 60
Important safety notes ....................42
PRE-SAFE ®
(anticipatory
occupant protection) .......................54
OCS
Faults ............................................... 53
Operation ........................................ .49
System self-test ............................... 51
Odometer ........................................... 266
Off-road driving Approach/departure angl e............ 454
Checklist after driving off-roa d...... 189
Checklist before driving off-road .... 189
Fording depth ................................ 454
General information .......................188
Important safety notes ..................187
Maximum gradient climbing ability 455
Traveling uphill ............................... 190
Off-road programs (vehicles with
the ON&OFFROAD package)
Displays in the COMAND displa y... 252
Function/notes ............................. 248
Off-road program 1........................ 248
Off-road program 2........................ 249
Off-road system
4MATIC .......................................... 246
DSR ............................................... 246
LOW RANGE off-road gear .............249
Off-road 4ETS .................................. 7214
Index

Useful information
..............................42
Panic alarm .......................................... 42
Occupant safety .................................. 42
Children in the vehicle ........................60
Driving safet ysystems ....................... 66
Theft deterrent locking system .........76 41Safety

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Read the information on qualified
specialist workshops: (Y page 28).Panic alarm
X
To activate: press000Dbutton 0002for at
least one second.
An alarm sounds and the exterior lighting
flashes.
X To deactivate: press000Dbutton 0002
again.
or
X Insert the SmartKey into the ignition lock.
or
X Press the KEYLESS-GO Start/Stop button.
The KEYLESS-GO key must be in the
vehicle. Occupant safety
Important safety notes
G
WARNING
Modifications to the restraint systems could
result in them not functioning properly any
more. The restraint systems could then no
longer protect vehicle occupants as they are
designed to do and could fail in the even tof
an accident or activate unexpectedly, for
example. There is an increased risk of injury.
Never modify parts of the restraint systems.
Do no tattemp tto modify the wiring as well as
electronic components or their software.
If it is necessary to modify an air bag system
to accommodate a person with disabilities,
contact an authorized Mercedes-Benz center.
USA only: for further information contact our
Customer Assistance Center at
1-800-FOR-MERCedes (1800-367-6372).
In this section, you will learn the most
important facts about the restraint system
components of the vehicle.
The restraint system consists of:
R seat belts
R child restraint systems
R LATCH-type (ISOFIX) child seat securing
system
Additional protection is provided by:
R SRS (Supplemental Restraint System)
R PRE-SAFE ®
R Air bag system components with:
-PASSENGER AIR BAG OFF indicator lamp
- front-passenger seat with Occupant
Classification System (OCS)
Although the systems are independent, their
protective functions work in conjunction with
each other. Not all air bags are always
deployed in an accident.
i For information on infants and children
traveling with you in the vehicle restraint
systems for infants and children, see
"Children in the vehicle" (Y page 60).42
Occupant safetySafety

If the key is removed from the ignition lock or
is in position
0, PASSENGER AIRBAG OFF
indicator lamp 0002does not lightu p.
The Occupant Classification System (OCS)
categorizes the occupant on the front-
passenger seat using a weight sensor. The
front-passenger fron tair bag is deactivated
automatically for certain weight categories.
PASSENGER AIRBAG OFF indicator lamp 0002
shows you the current status. If PASSENGER
AIRBAG OFF indicator lamp 0002is lit, the front-
passenger front air bag is disabled.
The system does not deactivate:
R the side impac tair bag
R the window curtain air bag
R the ETDs
To be classified correctly, the front passenger
must sit:
R with the seat belt fastened correctly
R in a position that is as upright as possible
with their back against the seat backrest
R with their feet on the floor
The OCS weight sensor reading is affected if
the occupant's weight is transferred, e.g. by
leaning on the armrest.
If the front-passenger seat, the seat cover or
the seat cushio nare damaged, have the
necessary repair work carried out at a
qualified specialist workshop.
For safety reasons, Mercedes-Benz
recommends that you only use seat
accessories that have been approved by
Mercedes-Benz. Both the drive
rand the front passenger
should always observe the PASSENGER AIR
BAG OFF indicator lamp as an indication of
whethe rornot the front passenger is
positioned correctly. Observe also the air bag
display messages that can be displayed in the
instrument cluster (Y page 293).
If the driver's air bag deploys, this does not
mean that the front-passenger front air bag
will also deploy.
The OCS may have detected that the seat:
R is empty or occupied by the weight of a
typical child up to twelve months old,
seated in a child restraint system.
R is occupied by a small individual, such as a
young teenager or a small adult.
R is occupied by a child in a child restraint
system whose weight is greater than that
of a typical twelve month old child.
These are examples of when the OCS
deactivates the front-passenger front air bag.
Deactivation takes place although the
collision fulfills the criteria for deploying the
driver's air bag.
System self-test G
WARNING
If the 001A001Cindicator lamp does not
illuminate, the system is not functioning. You
must contact an authorized Mercedes-Benz
Center before seating any child on the front
passenger seat. G
WARNING
Objects betwee nthe seat surface and the
child restraint system could affect the
function of the OCS. This could result in the
front-passenger front air bag not functioning
as intended during an accident. This poses an
increased risk of injury or even fatal injury.
Do not place any objectsb etween the seat
surface and the child restraint system. Make
sure that the bottom and back of the child
restraint system make full contact with the
front-passenger seat cushion and backrest. Occupant safety
51Safety
Z

Always comply with the child restraint system
manufacturer's installation instructions.
The PASSENGER AIR BAG OFF indicator lamp
lights up:
R if you turn the SmartKey in the ignition lock
to position 1or 2
R if you press the KEYLESS-GO Start/Stop
button once or twice on vehicles with
KEYLESS-GO
R if an adul tis seated properly on the front-
passenger seat and the OCS classifies the
occupant as an adult
The PASSENGER AIR BAG OFF indicator lamp
goes out againa fter approximately six
seconds.
If the sea tis not occupied and the OCS
detects that the front-passenger seat is
empty, the PASSENGER AIR BAG OFF
indicator lamp will continue to light up. The
PASSENGER AIR BAG OFF indicator lamp will
not go out.
For more information aboutt he OCS, see
"Problems with the Occupant Classification
System" (Y page 53). 52
Occupant safetySafety

R
on vehicles with the memory function:
the front-passenger seat is adjusted if it is
in an unfavorable position.
R vehicles with amulticontour seat: the
airp ressure in the side bolsters of the
backrest is increased.
If the hazardous situation passes without
resulting in an accident, PRE-SAFE ®
slackens
the beltp re-tensioning. On vehicles with
multicontour seats, the air pressure in the
side bolsters is reduced again. All settings
made by PRE-SAFE ®
can then be reversed.
If the seat belts are not released:
X When the vehicle is stationary, move the
backrest or seat back slightly.
The seat beltp re-tensioning is reduced and
the locking mechanism is released.
The seat-belt adjustment is an integral part of
the PRE-SAFE ®
convenience function. More
information about seat-belt adjustment can
be found under "Seat-belt adjustment"
(Y page 57). Seat belts
Important safety notes G
WARNING
The seat belt does not offer the intended level
of protection if the backrest is not in the
upright position. When braking or in the event
of an accident, you could slide underneath the
seat belt and sustain abdomen or neck
injuries, for example. This poses an increased
risk of injury or even fatal injury.
Adjust the seat properly before beginning
yourj ourney. Always make sure that the seat
is in the upright position. G
WARNING
Seat belts cannot protect as intended, if:
R they are damaged, extremely dirty,
bleached or dyed
R the seat belt buckle is damaged or
extremely dirty
R the Emergency Tensioning Devices or the
belt anchorage has been modified.
Damage caused to seat belts in an accident
may not be visible, e.g. by splinters of glass.
Modified or damaged seat belts can tear or
fail, for example in the event of an accident.
Modified Emergency Tensioning Devices may
be deployed unintentionally or fail to be
deployed when required. There is an
increased risk of injury, possibly even fatal.
Never modify seat belts, Emergency
Tensioning Devices, seat belt anchorages and
inertia reels. Ensure that seat belts are not
damaged or worn and are clean.
Only use seat belts that have been approved
for your vehicle by Mercedes-Benz.
The use of seat belts and infant and child
restraint systems is required by law in:
R all 50 states
R the U.S. territories
R the District of Columbia
R all Canadia nprovinces
Even where this is not required by law, all
vehicle occupants should correctly fasten
their seat belts before starting the journey.
i See "Children in the vehicle"
(Y page 60) for further information on
infants and children traveling in the vehicle
as well as on child restraint systems.
Correct use of the seat belts G
WARNING
USE SEAT BELTS PROPERLY
R Seat belts can only work when used
properly.N ever wear seat belts in any other
way than as described in this section, as Occupant safety
55Safety
Z