isofix MERCEDES-BENZ GLS-Class SUV 2017 X166 Owner's Manual

Roof lining...................................... 33 0
Se at belt ........................................ 330
Seat cover .................................... .330
Sensors ......................................... 328
Side running board ........................ 327
Steering wheel ............................... 329
Trim pieces ....................................3 30
Washing by hand ........................... 325
Wheels ...........................................3 26
Windows ........................................ 327
Wiper blades .................................. 327
Wooden trim .................................. 330
Cargo compartment cover
Notes/how to use ......................... 300
Cargo compartment enlargement
Important safety notes .................. 297
Cargo compartment floor
Important safety notes .................. 301
Opening/closing ............................ 301
Stowage well (under) ..................... 301
Cargo tie down rings ......................... 299
CD
see also Digital Operator's Man-
ual ..................................................2 87
CD player (on-board computer) ........235
Center console
Lower section .................................. 37
Upper section .................................. 36
Central locking
Automatic locking (on-board com-
puter) ............................................. 239
Locking/unlocking (SmartKey) ........7 4
Child
Restraint system .............................. 58
Child seat
Forward-facing restraint system ...... 61
LATCH-type (ISOFIX) child seat
anchors ............................................ 59
On the front-passenger seat ............ 61
Rearwar d-fac
ing restraint system .... 61
Top Tether ...................................... .60
Child-proof locks
Important safety notes .................... 61
Rear doors ...................................... .62
Children
Special seat belt retractor .............. .57
Cigarette lighter ................................ 306 Cleaning
Mirror turn signal .......................... .327
Trailer tow hitch .............................3 29
Climate control
3-zone automatic climate control
with additional rear-compartment
climate control ............................... 127
Automatic climate control (3-
zone) .............................................. 125
Controlling automatically ...............1 30
Cooling with air dehumidification .. 130
Defrosting the windows ................. 132
Defrosting the windshield .............. 132
Dual-zone automatic climate con-
trol ................................................. 123
General notes ................................ 123
Indicator lamp ................................ 130
Ionization ....................................... 134
Maximum cooling .......................... 132
Notes on using the automatic cli-
mate control .................................. 129
Overview of systems ......................1 23
Problem with the rear window
defroster ........................................ 133
Problems with cooling with air
dehumidification ............................ 130
Rear control panel ......................... 125
Rear control panel (3-zone auto-
matic climate control with addi-
tional rear-compartment climate
control) .......................................... 127
Refrigerant ..................................... 383
R

efrigerant filling capacity ............. 384
Setting the air distribution ............. 131
Setting the air vents ......................1 34
Setting the airflow ......................... 131
Setting the climate mode (AIR
FLOW) ............................................ 130
Setting the temperature ................ 131
Switching air-recirculation mode
on/off ............................................ 133
Switching on/off ........................... 129
Switching residual heat on/off ...... 133
Switching the rear window
defroster on/off ............................ 133
Switching the ZONE function
on/off ............................................ 132
Coat hooks ......................................... 300
Index7

Interior lightingAutomatic control .......................... 117
Emergency lighting ........................ 117
General notes ................................ 117
Manual control .............................. .116
Overview ........................................ 116
Reading lamp ................................. 116
iPod
®
see also Digital Operator's Man-
ual ..................................................2 87
J
Jack
Storage location ............................ 331
Using ............................................. 368
Jump starting (engine) ......................338
K
Key positions
KEYLESS-GO .................................. 138
SmartKey ....................................... 138
KEYLESS-GO
Activating ......................................... 75
Convenience closing feature ............ 88
Deactivation ..................................... 75
Display message ............................ 273
Locking ............................................ 75
Removing the Start/Stop button ... 139
Start function ................................... 76
Start/Stop button .......................... 138
Starting the engine ........................ 140
Unlocking ......................................... 75
Kickdown
Driving tips ....................................1 49
Manual gearshifting ....................... 152
Knee bag .............................................. 47
L
Lamps
see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating ................. 238
Display message ............................ 264
Function/information .................... 209
see Active Lane Keeping Assist
Lap time (RACETIMER) ...................... 241LATCH-type (ISOFIX) child seat
anchors
................................................ 59
Level control
AIRMATIC ...................................... 188
Level control (display message) ...... 261
Level control (vehicle with the Off-
Road Engineering package)
Basic settings ................................ 182
Function/notes ............................. 182
Important safety notes .................. 182
License plate lamp (display mes-
sage) ................................................... 256
Light function, active
Display message ............................ 256
Light sensor (display message) ....... 256
Lights
Activating/deactivating the Intel-
ligent Light System ........................ 239
Active light function ....................... 114
Adaptive Highbeam Assist ............. 115
Automatic headlamp mode ............ 112
Fog lamps (extended) .................... 115
Hazard warning lamps ................... 114
High beam flasher .......................... 113
High-beam headlamps ................... 113
Highway mode ............................... 114
Light switch ................................... 112
Low-beam headlamps .................... 113
Off-road lights ................................ 115
Parking lamps ................................ 113
Rear fog lamp ................................ 113
Standing lamps .............................. 113
Switching the daytime running
lamps on/off (on-board com-
puter) ............................................. 239
Turn signals ................................... 113
see Interior lighting
see Replacing bulbs
Loading guidelines ............................ 294
Locking
see Central locking
Locking (doors)
Automatic ........................................ 81
Emergency locking ........................... 81
From inside (central locking but-
ton) .................................................. 80
Index13

Installing a child restraint system:
XAlways comply with the child restraint system
manufacturer's installation instructions.
XPull the seat belt smoothly from the belt out-
let.
XEngage the seat belt tongue in the belt buckle.
Activating the special seat belt retractor:
XPull the seat belt out fully and let the inertia
reel retract it again.
While the seat belt is retracting, you should
hear a ratcheting sound. The special seat belt
retractor is activated.
XPush the child seat restraint system down so
that the seat belt is tight and does not loosen.
Removing a child restraint system and deacti-
vating the special seat belt retractor:
XAlways comply with the child restraint system
manufacturer's installation instructions.
XPress the release button of the belt buckle,
hold the belt tongue firmly and guide it back
towards the belt outlet.
The special seat belt retractor is deactivated.
Child restraint system
The use of seat belts and child restraint systems
is required by law in:
Rall 50 states
Rthe U.S. territories
Rthe District of Columbia
Rall Canadian provinces
If you install a rearward-facing child restraint
system on the center rear seat, the rear arm rest
must be folded back as far as possible.
You can obtain further information about the
correct child restraint system from any author-
ized Mercedes-Benz Center.
GWARNING
If the child restraint system is installed incor-
rectly on a suitable seat, it cannot protect as
intended. The child cannot then be restrained
in the event of an accident, heavy braking or
sudden changes of direction. There is an
increased risk of injury, possibly even fatal.
Make sure that you observe the child restraint
system manufacturer's installation instruc-
tions and the notes on use. Please ensure,
that the base of the child restraint system is
always resting completely on the seat cush-
ion. Never place objects, e.g. cushions, under or behind the child restraint system. Only use
child restraint systems with the original cover
designed for them. Only replace damaged
covers with genuine covers.
GWARNING
If the child restraint system is installed incor-
rectly or is not secured, it can come loose in
the event of an accident, heavy braking or a
sudden change in direction. The child
restraint system could be thrown about, strik-
ing vehicle occupants. There is an increased
risk of injury, possibly even fatal.
Always install child restraint systems prop-
erly, even if they are not being used. Make
sure that you observe the child restraint sys-
tem manufacturer's installation instructions.
You will find further information on stowing
objects, luggage or loads under "Loading guide-
lines" (
Ypage 294).
GWARNING
Child restraint systems or their securing sys-
tems which have been damaged or subjected
to a load in an accident can no longer protect
as intended. The child cannot then be
restrained in the event of an accident, heavy
braking or sudden changes of direction. There is an increased risk of injury, possibly even
fatal.
Replace child restraint systems which have
been damaged or subjected to a load in an
accident as soon as possible. Have the secur-
ing systems on the child restraint system
checked at a qualified specialist workshop,
before you install a child restraint system
again.
The securing systems of child restraint systems
are:
Rthe seat belt system
Rthe LATCH-type (ISOFIX) securing rings
Rthe Top Tether anchorages
58Children in the vehicle
Safety

If it is absolutely necessary to carry a child on
the front-passenger seat, be sure to observe the
information on the "Occupant Classification
System (OCS)" (
Ypage 48). There you will also
find information on deactivating the front-
passenger front air bag.
All child restraint systems must meet the fol-
lowing standards:
RU.S. Federal Motor Vehicle Safety Standards
213 and 225
RCanadian Motor Vehicle Safety Standards
213 and 210.2
Confirmation that the child restraint system cor-
responds to the standards can be found on an
instruction label on the child restraint system.
This confirmation can also be found in the instal-
lation instructions that are included with the
child restraint system.
Observe the warning labels in the vehicle inte-
rior and on the child restraint system.
LATCH-type (ISOFIX) child seat secur-
ing system
GWARNING
LATCH-type (ISOFIX) child restraint systems
do not offer sufficient protective effect for
children whose weight is greater than 48 lbs
(22 kg) who are secured using the safety belt integrated in the child restraint system. In the
event of an accident, a child might not be
restrained correctly. This poses an increased
risk of injury or even fatal injury.
If the child weighs more than 48 lbs (22 kg),
only use LATCH-type (ISOFIX) child restraint
systems with which the child is also secured
with the vehicle seat belt. Also secure the
child restraint system with the Top Tether
belt, if available.
Always comply with the manufacturer's instal-
lation and operating instructions for the child
restraint system used.
Before every trip, make sure that the LATCH-
type (ISOFIX) child restraint system is engaged
correctly in both LATCH-type (ISOFIX) securing
rings
To ensure that the LATCH-type (ISOFIX) child
restraint system can perform its protective func-
tion as intended, the backrest of the respective outer seat in the second row must be in the
upright position.
!When installing the child restraint system,
make sure that the seat belt for the middle
seat does not get trapped. The seat belt could
otherwise be damaged.
LATCH-type (ISOFIX) securing rings for the outer
seat in the second row of seats
LATCH-type (ISOFIX) securing rings for the third
row of seats
Before installing a LATCH-type (ISOFIX) child
restraint system on the second row of seats:
XMove the rear seat backrests in the second
row to an upright position (Ypage 98).
XInstall the LATCH-type (ISOFIX) child restraint system on both LATCH-type (ISOFIX) securing
rings :.
ISOFIX is a standardized securing system for
specially designed child restraint systems on
the rear seats.
Non-LATCH-type (ISOFIX) child seats may also
be used and can be installed using the vehicle's
seat belt system. Install the child seat according to the manufacturer's instructions.
Children in the vehicle59
Safety
Z

Top Tether
Introduction
Top Tether provides an additional connection
between the child restraint system secured with
a LATCH-type (ISOFIX) system and the vehicle.
This helps reduce the risk of injury even further.
If the child restraint system is equipped with a
Top Tether belt, this should always be used.
Important safety notes
GWARNING
If the rear seats or the rear seat backrests are
not locked, they could fold forwards in the
event of an accident, heavy braking or sudden
changes of direction. As a result, child
restraint systems cannot perform their inten-
ded protective function. Rear seats and rear
seat backrests that are not locked can also
cause additional injuries, e.g. in the event of
an accident. This poses an increased risk of
injury or even fatal injury.
Always lock the rear seats and rear seat
backrests after installing a Top Tether belt.
Observe the lock verification indicator. Adjust the rear seat backrests so that they are in an
upright position.
Make sure that the backrest in the rear com-
partment engages fully. To do so, pull firmly on
the seat backrest.
Top Tether anchorages
The Top Tether anchorages for the second row
of seats are located on the rear of the rear seat
backrests. For the third row of seats, use the cargo tie-down rings in the cargo compartment
floor.
XMove head restraint
=up (Ypage 97).
XInstall the LATCH-type (ISOFIX) child restraint
system with Top Tether. Always comply with
the child restraint system manufacturer's
installation instructions when doing so.
XRoute Top Tether belt Bunder head restraint
= between the two head restraint bars.
XGuide Top Tether belt Bdownwards between
cargo compartment cover :and rear seat
backrest ;.
XHook Top Tether hook Aof Top Tether belt
B into Top Tether anchorage ?.
Make sure that:
RTop Tether hook Ais hooked into Top
Tether anchorage ?as shown.
RTop Tether belt Bis not twisted.
RTop Tether belt Bis routed between rear
seat backrest ;and cargo compartment
cover :if cargo compartment cover :is
installed.
RTop Tether belt Bis routed between rear
seat backrest ;and the cargo net if the
cargo net is installed.
XTension Top Tether belt B. Always comply
with the child restraint system manufactur-
er's installation instructions when doing so.
XMove head restraint =back down again
slightly if necessary (Ypage 97). Make sure
that you do not interfere with the correct rout-
ing o
f Top Tether belt B.
60Children in the vehicle
Safety