2012 MERCEDES-BENZ GL-Class child restraint

Cargo compartment floor ................. 314
Cargo net Attaching ....................................... 275
Important safety information .........274
Cargo tie down rings ......................... 272
Car wash (care) ................................. 306
CD player/CD changer (on-board
computer) .......................................... 221
Cell phone see Mobile phone
Center console
Lower section .................................. 34
Upper section .................................. 32
Central locking
Automatic locking (on-board
computer) ...................................... 226
Locking/unlocking (SmartKey) ........76
Changing bulbs
Backup lamp (LEDs) .......................127
High-beam headlamps ...................125
Important safety notes ..................123
License plate lighting .....................127
Low-beam headlamps ....................125
Overview of bulb types ..................124
Parking lamps ................................ 126
Rear fog lamp (LEDs) .....................127
Side marker lamps (front) ..............126
Standing lamps (front) ...................126
Turn signals (front) ......................... 126
Child-proof locks
Important safety notes ....................66
Rear doors ....................................... 66
Children
In the vehicle ................................... 61
Restraint systems ............................ 61
Child seat
Automatic recognition .....................50
Automatic recognition/air bag
deactivation, self-test ......................52
Display message ............................ 237
LATCH-type (ISOFIX ) child seat
anchors ............................................ 63
Special seat belt retractor ...............63
Top Tether ....................................... 64
Troubleshooting ............................... 53
Cigarette lighter ................................ 284Classification system for
occupants (OCS) Faults ............................................... 49
Operation ......................................... 45
System self-test ............................... 48
Climate control
Automatic climate control (3-
zone) .............................................. 136
Controlling automatically ...............140
Cooling with air dehumidification ..139
Defrosting the windshield ..............142
Demisting the windows .................. 143
Dual-zone automatic climate
control ........................................... 135
Important safety notes ..................134
Indicator lamp ................................ 140
Notes on using automatic climate
control ................................... 135, 138
Overview of systems ......................134
Problems with cooling with air
dehumidification ............................ 140
Problem with the rear window
defroster ........................................ 143
Rear control panel .........................136
Refrigerant ..................................... 375
Setting the air distribution .............142
Setting the airflow .........................142
Setting the air vents ......................145
Setting the temperature ................141
Switching air-recirculation mode
on/off ............................................ 144
Switching on/off ........................... 138
Switching residual heat on/off ......144
Switching the MONO function on/
off .................................................. 142
Switching the rear window
heating on/off ............................... 143
Clock (on-board computer) ............... 224
Cockpit Overview .......................................... 28
see Instrument cluster
COMAND
see separate operating instructions
Combination switch .......................... 121
Compass Calling up ....................................... 296
Consumption statistics (on-board
computer) .......................................... 2296Index

N
Navigation Menu (on-board computer) ............222
On-board computer .......................222
see separate operating instructions
NECK-PRO head restraints
Operation ......................................... 54
Resetting after being triggered ........54
NECK-PRO luxury head restraints
Resetting after being triggered ........54
Notes on breaking-in a new
vehicle ................................................ 148
O
Occupant Classification System
(OCS) Faults ............................................... 49
Operation ......................................... 45
System self-test ............................... 48
Occupant safety
Children in the vehicle .....................61
System overview .............................. 38
Octane number (fuel) ........................ 372
Odometer ........................................... 220
see Trip odometer
Off-road driving
Checklist after driving off-road ......176
Checklist before driving off-road .... 175
General information .......................175
Important safety notes ..................174
Traveling uphill ............................... 178
Off-road program
Notes ............................................. 206
Off-road system
4MATIC .......................................... 203
Differential locks ............................ 208
DSR ............................................... 204
LOW RANGE off-road gear .............206
Off-road 4ETS .................................. 70
Off-road ABS .................................... 69
Off-road drive program ..................206
Off-road ESP ®
.................................. 71
Oil
see Engine oil
On-board computer
Additional functions menu .............228
Audio menu ................................... 221
Convenience submenu ..................227
Displaying a service message ........305
Displaying the coolant
temperature ................................... 220
Displaying the outside
temperature ................................... 220
Display messages ..........................232
DISTRONIC menu .......................... 187
Factory settings ............................. 223
Important safety notes ..................216
Instrument cluster submenu ..........223
Lighting submenu .......................... 224
Menu overview .............................. 219
Message memory menu ................. 232
Navigation menu ............................ 222
Off-road menu ............................... 222
Operating video DVD .....................222
Operation ....................................... 217
Selecting the language ..................224
Settings menu ............................... 223
Standard display ............................ 220
Status bar ...................................... 224
Telephone menu ............................ 230
Time/Date submenu .....................224
Trip computer menu ......................229
Vehicle submenu ........................... 226
Opening and closing the side trim
panels ................................................. 126
Operating system see On-board computer
Outside temperature
Calling up (on-board computer) .....220
Display ........................................... 216
Overhead control panel ...................... 35
Override feature Rear side windows ...........................66
P
Paint code number ............................ 369
Paintwork (cleaning instructions) ... 308
Panic alarm .......................................... 67
Parking Important safety notes ..................166
Parking brake ................................ 167
Index13

Rear window heatingSwitching on/off ........................... 143
Rear window wiper
Replacing the wiper blade .............. 130
Switching on/off ........................... 129
Refueling
Fuel gauge ....................................... 29
Important safety notes ..................159
Refueling process ..........................161
see Fuel
Remote control
Garage door opener .......................293
Reporting
Malfunctions relevant to safety ........ 25
Reserve (fuel tank)
see Fuel
Reserve fuel
Display message ............................ 247
Warning lamp ................................. 264
see Fuel
Reset button ........................................ 29
Residual heat (climate control) ........ 144
Restraint system see SRS (Supplemental Restraint
System)
Roadside Assistance (breakdown) .... 22
Roller sunblind Rear panorama roof .......................283
Roof carrier ........................................ 277
Roof lining and carpets (cleaning
guidelines) ......................................... 312
Roof load (maximum) see Technical data
Route
see Route guidance (navigation)
Route guidance (navigation) ............ 222
S
Safety Children in the vehicle .....................61
Child restraint systems ....................61
Occupant Classification System
(OCS) ............................................... 45
Overview of occupant safety
systems ........................................... 38
Safety systems
see Driving safety systems
Seat
Folding down/up (third row of
seats) ............................................. 104
Important safety notes ....................99
Seat belts
Adjusting the driver's and front-
passenger seat belt .........................58
Adjusting the height ......................... 58
Belt force limiters ............................ 59
Cleaning ......................................... 311
Correct usage .................................. 56
Emergency Tensioning Devices ........ 59
Fastening ......................................... 57
Important safety guidelines .............55
Releasing ......................................... 59
Safety guidelines ............................. 39
Special seat belt retractor ...............63
Switching belt adjustment on/off
(on-board computer) ......................228
Warning lamp ................................. 258
Warning lamp (function) ................... 59
Seats
Adjusting (electrically) ...................100
Adjusting (second and third rows) . 104
Adjusting the 4-way lumbar
support .......................................... 108
Adjusting the head restraint ..........101
Cleaning the cover .........................311
Correct driver's seat position ........... 98
Folding the rear bench seat
forwards/back ............................... 270
Multicontour seat .......................... 107
Seat heating problem ....................109
Seat ventilation problem ................109
Storing settings (memory
function) ........................................ 114
Switching seat heating on/off .......108
Switching the seat ventilation on/
off .................................................. 109
Securing hooks .................................. 273
Sensors (cleaning instructions) ....... 309
Service see ASSYST PLUS service interval
display
Service interval display
Displaying service messages .........305
Hiding service messages ...............305Index15

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 Please read the information on qualified
specialist workshops ( Y page 24).
Occupant safety
Overview of occupant safety
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 anchors
Additional protection is provided by:
R SRS (Supplemental Restraint System)
R NECK-PRO head restraints/NECK-PRO
luxury head restraints
R PRE-SAFE ®
R Air bag system components with:
- PASSENGER AIR BAG OFF indicator lamp
- USA only: front-passenger seat with
Occupant Classification System (OCS)
- Canada only: front-passenger seat with
BabySmart™ air bag deactivation system
The different air bag systems work
independently of each other. The protective
functions of the system work in conjunction
with each other. Not all air bags are deployed
in an accident.
GWARNING
Modifications to or work improperly
conducted on restraint system components
or their wiring, as well as tampering with
interconnected electronic systems, can lead
to the restraint systems no longer functioning
as intended.
Air bags or Emergency Tensioning Devices/
belt buckle tensioners, for example, could
deploy inadvertently or fail to deploy.
Therefore, never modify the restraint
systems. Do not tamper with electronic
components or their software.
i See "Children in the vehicle"
( Y page 61) for more information on
infants and children traveling with you in
the vehicle and restraints for infants and
children.
SRS (Supplemental Restraint System)
Introduction
SRS consists of:
R the + SRS warning lamp
R air bags
R air bag control unit (with crash sensors)
R Emergency Tensioning Devices/belt
buckle tensioners
R belt force limiters
SRS reduces the risk of occupants coming
into contact with the vehicle's interior in the
event of an accident. It can also reduce the
effect of the forces to which occupants are
subjected during an accident.
SRS warning lamps
SRS functions are checked regularly when
you switch on the ignition and when the
engine is running. Therefore, malfunctions
can be detected in good time.
The + SRS warning lamp in the instrument
cluster lights up when the ignition is switched
38Occupant safetySafety

Since the air bag inflates with considerable
speed and force, a proper seating position
and correct positioning of the hands on the
steering wheel will help to keep you at a safe
distance from the air bag. Occupants who are
not wearing their seat belt, are not seated
properly or are too close to the air bag can be
seriously injured or killed by an air bag as it
inflates with great force instantaneously:
R Sit with the seat belt properly fastened in a
position that is as upright as possible with
your back against the seat backrest.
R Move the driver's seat as far back as
possible, still permitting proper operation
of vehicle controls. The distance from the
center of the driver's chest to the center of
the air bag cover on the steering wheel
must be at least 10 inches (25 cm) or more.
You should be able to accomplish this by
adjusting the seat and steering wheel. If
you have any difficulties, please contact an
authorized Mercedes-Benz Center.
R Do not lean your head or chest close to the
steering wheel or dashboard.
R Only hold the steering wheel by the rim.
Placing hands and arms inside the rim can
increase the risk and potential severity of
hand/arm injury when the driver front air
bag inflates.
R Adjust the front-passenger seat as far back
as possible from the dashboard when the
seat is occupied.
R Occupants, especially children, should
never place their bodies or lean their heads
in the area of the door where the side
impact air bag inflates. This could result in
serious injuries or death should the side
impact air bag be deployed. Always sit as
upright as possible, wear the seat belt
properly and use an appropriately sized
child restraint, infant restraint or booster
seat recommended for the size and weight
of the child.
R Canada only: children under 12 years may
only sit in the front-passenger seat if they
are seated in a child restraint system whichis compatible with BabySmart™ and
approved by Mercedes-Benz. If the child
restraint system is installed properly, the
front-passenger front air bag is deactivated
in conjunction with the BabySmart™
system installed in the vehicle. Otherwise,
the child could be struck by the air bag
when it inflates in a crash. This could lead
to serious or fatal injuries.
Failure to follow these instructions can result
in severe injuries to you or other occupants.
If you sell your vehicle, it is important that you
make the buyer aware of this safety
information. Be sure to give the buyer this
Operator's Manual.GWARNING
Accident research shows that the safest place
for children in an automobile is in a rear seat.
A side impact air bag related injury may occur
if occupants, especially children, are not
properly seated or restrained when next to a
side impact air bag which needs to deploy
rapidly in a side impact in order to do its job.
To help avoid the possibility of injury, please
follow these guidelines:
(1)Always sit as upright as possible
and use the seat belts properly.
Make sure that children 12 years
old and under use an appropriately
sized child restraint, infant
restraint, or booster seat
recommended for the size and
weight of the child.(2)Always wear seat belts properly.
The air bags are only deployed if the air bag
control unit detects the need for deployment.
Only in the event of such a situation will they
provide their supplemental protection.
The driver and passenger should always wear
their seat belts. Otherwise, it is not possible
for the air bags to provide their supplemental
protection.
In the event of other types of impacts and
impacts below air bag deployment
Occupant safety41SafetyZ

Occupant Classification System
(OCS)
How the occupant classification
system works
The OCS is standard equipment in the USA.
The OCS categorizes the occupant on the
front-passenger seat by means of a weight
sensor. The front-passenger front air bag is
deactivated automatically for certain weight
categories. The 42 indicator
lamp shows you the current status. If the
42 indicator lamp is illuminated,
the front-passenger front air bag is
deactivated.
The system does not disable:
R the side impact air bag
R the window curtain air bag
R the Emergency Tensioning Devices/belt
buckle tensioners
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
If the front-passenger's weight is transferred
to another object in the vehicle (e.g. by
leaning on armrests), OCS may not be able to
approximate the occupant's weight category.
In addition, the occupant weight may appear
to increase or decrease due to the following:
R objects hanging on the seat
R objects lodged underneath the seat
R objects lodged between the seat and the
center console
R objects lodged between the seat and the
door
R other passengers exerting weight on the
seat
R objects applying pressure to the back of
the seat
Make sure that the seat always has clearance
in all directions.
If the front-passenger seat, the seat cover or
the seat cushion are damaged, have the
necessary repair work carried out at an
authorized Mercedes-Benz Center.
For safety reasons, Mercedes-Benz
recommends that you only use seat
accessories which have been approved by
Mercedes-Benz.
Both the driver and the passenger should
always use the 42 indicator
lamp as an indication of whether or not the
passenger is properly positioned.GWARNING
If the 42 indicator lamp
illuminates when an adult or someone larger
than a small individual is in the front
passenger seat, have the front passenger
reposition himself or herself in the seat until
the 42 indicator lamp goes out,
or check whether objects are caught under or
around the seat.
In the event of a collision, the air bag control
unit will not allow front passenger front air bag
deployment when the OCS has classified the
front passenger seat occupant as weighing as
much as or less than a typical 12-month-old
child in a standard child restraint or if the front
passenger seat is classified as being empty.
When the OCS senses that the front
passenger seat occupant is classified as
being up to or less than the weight of a typical
12-month-old child in a standard child
restraint, the 42 indicator lamp
will illuminate when the engine is started and
remain illuminated. This indicates that the
front passenger front air bag is deactivated.
When the OCS senses that the front
passenger seat is classified as being empty,
the 42 indicator lamp will
illuminate when the engine is started and
remain illuminated. This indicates that the
front passenger front air bag is deactivated.
Occupant safety45SafetyZ

When the OCS senses that the front
passenger seat occupant is classified as
being heavier than the weight of a typical 12-
month-old child seated in a standard child
restraint or as being a small individual (such
as a young teenager or a small adult), the
42 indicator lamp will illuminate
for approximately 6 seconds when the engine
is started. Depending on occupant weight
sensor readings from the seat, it will then
remain illuminated or go out. With the
42 indicator lamp illuminated,
the front passenger front air bag is
deactivated. With the 42
indicator lamp out, the front passenger front
air bag is activated.
When the OCS senses that the front
passenger seat occupant is classified as an
adult or someone larger than a small
individual, the 42 indicator lamp
will illuminate for approximately six seconds
when the engine is started and then go out.
This indicates that the front passenger front
air bag is activated.
If the 42 indicator lamp is
illuminated, the front passenger front air bag
is deactivated and will not be deployed.
If the 24 indicator lamp is not
illuminated, the front passenger front air bag
is activated and will be deployed
R in the event of certain frontal impacts
R if the impact exceeds a predetermined
triggering threshold
R independently of the side impact air bags
If the front passenger front air bag is
deployed, the rate of inflation will be
influenced by
R the rate of vehicle deceleration as assessed
by the air bag control unit
R the front passenger's weight category as
identified by the OCS
For further information, see "air bag display
messages" ( Y page 239).GWARNING
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 seats 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.
The infant or child restraint system must be
properly secured with the vehicle's seat belt,
the seat belt and Top Tether strap, or lower
anchors and Top Tether strap, fully in
accordance with the child seat
manufacturer's instructions.
Occupants, especially children, should always
sit as upright as possible, wear the seat belt
properly and use an appropriate sized infant
restraint, toddler restraint, or booster seat
recommended for the size and weight of the
child.
Children can be killed or seriously injured by
an inflating air bag. Note the following
important information when circumstances
require you to place a child in the front-
passenger seat:
R Your vehicle is equipped with air bag
technology designed to deactivate the
front-passenger front air bag in your vehicle
when the system senses the weight of a
typical 12-month-old child or less along
with the weight of a standard appropriate
child restraint on the front-passenger seat.
R A child in a rear-facing child restraint on the
front-passenger seat will be seriously
injured or even killed if the front-passenger
front air bag inflates in a collision which
could occur under some circumstances,
even with the air bag technology installed
in your vehicle. The only means to eliminate
this risk completely is never to place a child
in a rear-facing child restraint in the front-
passenger seat. We therefore strongly
46Occupant safetySafety

recommend that you always place a child
in a rear-facing child restraint on the rear
seat.
R If you install a rear-facing child restraint on
the front-passenger seat, make sure the
42 indicator lamp is
illuminated, indicating that the front-
passenger front air bag is deactivated.
Should the 42 indicator lamp
not illuminate or go out while the restraint
is installed, please check installation.
Periodically check the 42
indicator lamp while driving to make sure
the 42 indicator lamp is
illuminated. If the 42 indicator
lamp goes out or remains out, do not
transport a child on the front-passenger
seat until the system has been repaired.
A child in a rear-facing child restraint on the
front-passenger seat will be seriously
injured or even killed if the front-passenger
front air bag inflates.
R If you place a child in a forward-facing child
restraint on the front-passenger seat:
- move the seat as far back as possible
- use the proper child restraint
recommended for the age, size and
weight of the child
- secure child restraint with the vehicle's
seat belt according to the child seat
manufacturer's instructions
R For children larger than a typical 12-month-
old child, the front-passenger front air bag
can be activated or deactivated.
If the driver's air bag deploys, this does not
mean that the front-passenger front air bag
also has to deploy.
The OCS may have detected that the seat:
R was empty or occupied by a person with a
weight of up to or less than that of a typical12-month-old child seated in a standard
child restraint
R was occupied by a small individual, such as
a young teenager or a small adult
R was occupied by a child in a child restraint
system, whose weight is greater than that
of a typical 12-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.
If the SmartKey has been removed from the
ignition lock or is in position 0, indicator lamp
42 : does not light up.
GWARNING
If the red + SRS warning lamp in the
instrument cluster and the 42
indicator lamp light up simultaneously, the
OCS is malfunctioning. The front passenger
front air bag will be deactivated in this case.
Have the system checked by qualified
technicians as soon as possible. Contact an
authorized Mercedes-Benz Center.
Only have the seat repaired or replaced at an
authorized Mercedes-Benz Center.
In order to ensure proper operation of the air
bag system and OCS:
R Do not place more than 4.4 lb (2 kg) into the
parcel net on the rear of the front
passenger seat. Otherwise, the OCS may
Occupant safety47SafetyZ