2014 MERCEDES-BENZ GL-Class child lock

Central locking
Automatic locking (on-board
computer) ...................................... 284
Locking/unlocking (SmartKey) ........80
Changing bulbs
Brake lamps ................................... 140
High-beam headlamps ...................139
Low-beam headlamps ....................138
Child-proof locks
Important safety notes ....................65
Rear doors ....................................... 66
Children
In the vehicle ................................... 60
Restraint systems ............................ 60
Special seat belt retractor ...............63
Child seat
LATCH-type (ISOFIX) child seat
anchors ............................................ 63
Top Tether ....................................... 64
Cigarette lighter ................................ 352
Cleaning Mirror turn signal ........................... 380
Trailer tow hitch ............................. 381
Climate control
3-zone automatic climate control
with additional rear-compartment
climate control ............................... 152
Automatic climate control (3-zone) 150
Controlling automatically ...............156
Cooling with air dehumidification ..155
Defrosting the windows .................160
Defrosting the windshield ..............159
Dual-zone automatic climate
control ........................................... 147
Important safety notes ..................146
Indicator lamp ................................ 156
Information about using 3-zone
automatic climate control ..............154
Maximum cooling .......................... 159
Notes on using dual-zone
automatic climate control ..............149
Overview of systems ......................146
Problems with cooling with air
dehumidification ............................ 156
Problem with the rear window
defroster ........................................ 161
Rear control panel .........................150Rear control panel (3-zone
automatic climate control with
additional rear-compartment
climate control)
............................. 152
Refrigerant ..................................... 452
Refrigerant filling capacity .............452
Setting the air distribution .............158
Setting the airflow .........................158
Setting the air vents ......................162
Setting the climate mode (AIR
FLOW) ............................................ 157
Setting the temperature ................157
Switching air-recirculation mode
on/off ............................................ 161
Switching on/off ........................... 154
Switching residual heat on/off ......161
Switching the rear window
defroster on/off ............................ 160
Switching the ZONE function on/
off .................................................. 159
Coat hooks ......................................... 347
Cockpit Overview .......................................... 32
see Instrument cluster
COLLISION PREVENTION ASSIST
Operation/notes .............................. 69
COMAND
ON&OFFROAD menu .....................262
see separate operating instructions
COMAND display
Cleaning ......................................... 381
Combination switch ..........................131
Consumption statistics (on-board
computer) .......................................... 275
Convenience closing feature ..............95
Convenience opening feature ............95
Coolant (engine) Checking the level .........................373
Display message ............................ 306
Filling capacity ............................... 451
Important safety notes ..................450
Temperature (on-board computer) .287
Temperature gauge ........................ 272
Warning lamp ................................. 334
Cooling
see Climate control
Copyright ............................................. 30 Index
7

High-beam headlamps
Adaptive Highbeam Assist .............134
Changing bulbs .............................. 139
Display message ............................ 304
Switching on/off ........................... 132
Hill start assist .................................. 171
HOLD function Deactivating ................................... 217
Display message ............................ 312
Function/notes ............................. 216
Hood
Closing .......................................... .371
Display message ............................ 321
Important safety notes ..................370
Opening ......................................... 370
Hydroplaning ..................................... 195I
Ignition lock see Key positions
Immobilizer .......................................... 77
Indicator lamps see Warning and indicator lamps
Indicators
see Turn signals
Insect protection on the radiator ....371
Inspection see ASSYST PLUS
Instrument cluster
Overview .......................................... 33
Warning and indicator lamps ...........34
Instrument cluster lighting ..............272
Interior lighting ................................. 135
Automatic control ..........................136
Delayed switch-off (on-board
computer) ...................................... 284
Emergency lighting ........................137
Manual control ............................... 136
Overview ........................................ 135
Reading lamp ................................. 135
Setting the brightness of the
ambient lighting (on-board
computer) ...................................... 283
Setting the color of the ambient
lighting (on-board computer) .........283 J
Jack Storage location ............................ 386
Using ............................................. 429
Jump starting (engine) ......................395 K
KEYLESS-GO Convenience closing feature ............96
Display message ............................ 323
Locking ............................................ 81
Start/Stop button .......................... 167
Starting the engine ........................170
Unlocking ......................................... 81
Key positions
KEYLESS-GO .................................. 167
SmartKey ....................................... 167
Kickdown
Driving tips .................................... 176
Manual drive program ....................180
Knee bag .............................................. 47 L
Lamps see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating .................282
Display message ............................ 313
Function/informatio n.................... 245
see Active Lane Keeping Assist
Lap time (RACETIMER) ......................287
LATCH-type (ISOFIX) child seat
anchors ................................................ 63
Level control (display message) ......310
Level control (vehicles with
AIRMATIC package)
Basic settings ................................ 219
Function/notes ............................. 218
Important safety notes ..................218
Level control (vehicles with the
ON&OFFROAD package)
Basic settings ................................ 213
Function/notes ............................. 212
Important safety notes ..................212
License plate lamp (display
message) ............................................ 304 12
Index

Useful information
..............................42
Panic alarm .......................................... 42
Occupant safety .................................. 42
Children in the vehicle ........................60
Driving safety systems .......................66
Theft deterrent locking system .........77 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: press!button :for at
least one second.
An alarm sounds and the exterior lighting
flashes.
X To deactivate: press!button :
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 event of
an accident or activate unexpectedly, for
example. There is an increased risk of injury.
Never modify parts of the restraint systems.
Do not attempt to 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 :does not light up.
The Occupant Classification System (OCS)
categorizes the occupant on the front-
passenger seat using a weight sensor. The
front-passenger front air bag is deactivated
automatically for certain weight categories.
PASSENGER AIRBAG OFF indicator lamp :
shows you the current status. If PASSENGER
AIRBAG OFF indicator lamp :is lit, the front-
passenger front air bag is disabled.
The system does not deactivate:
R the side impact air 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 cushion are 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 driver and the front passenger
should always observe the PASSENGER AIR
BAG OFF indicator lamp as an indication of
whether or not the front passenger is
positioned correctly. Observe also the air bag
display messages that can be displayed in the
instrument cluster (Y page 301).
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 45indicator 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 between the 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 objects between 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 adult is 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 again after approximately six
seconds.
If the seat is 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 about the OCS, see
"Problems with the Occupant Classification
System" (Y page 53). 52
Occupant safetySafety

R
vehicles with the memory function: the
front-passenger seat is adjusted if it is in an
unfavorable position.
R vehicles with a multicontour seat: the
air pressure in the side bolsters of the
backrest is increased.
If the hazardous situation passes without
resulting in an accident, PRE-SAFE ®
slackens
the belt pre-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 belt pre-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
your journey. 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 Canadian provinces
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. Never wear seat belts in any other
way than as described in this section, as Occupant safety
55Safety
Z

Fastening seat belts
G
WARNING
According to accident statistics, children are
safer when properly restrained on the rear
seats than on the front-passenger seat. Thus,
we strongly recommend that children be
placed in the rear seat whenever possible.
Regardless of seating position, children 12
years old and under must be seated and
properly secured in an appropriately sized
child restraint system or booster seat
recommended for the size and weight of the
child. For additional information, see the
"Children in the vehicle" section.
A child's risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and/
or the child is not properly secured in the child
restraint. X
Adjust the seat and move the backrest to
an almost vertical position (Y page 106).
X Pull the seat belt smoothly through belt
sash guide :.
X Without twisting it, guide the shoulder
section of the seat belt across the middle
of your shoulder and the lap section across
your pelvis. X
Engage belt tongue ;in buckle =.
Seat-belt adjustment: if necessary, the
driver's and front-passenger seat belts
automatically adjust to the upper body
(Y page 57).
X If necessary, adjust the seat belt to the
appropriate height (Y page 58).
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 63).
For more information about releasing the seat
belt with release button ?, see "Releasing
seat belts" ( Ypage 58).
Seat belt adjustment The seat-belt adjustment 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
you engage the belt tongue in the belt
buckle and you then turn the SmartKey to
position 2in the ignition lock.
R the SmartKey is in position 2in the ignition
lock and you then engage the belt tongue
in the buckle.
The seat-belt adjustment will apply a
retraction force if any slack is detected
between the occupant and the seat belt. Do
not hold on to the seat belt tightly while it is
adjusting. You can switch the seat-belt
adjustment on and off in the on-board
computer (Y page 285).
The seat-belt adjustment is an integral part of
the PRE-SAFE ®
convenience function. More
information about PRE-SAFE ®
can be found
under "PRE-SAFE ®
(preventative occupant
protection)" (Y page 54). Occupant safety
57Safety Z