297 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

Starting the engine with the
SmartKey ....................................... 140
Starting via smartphone ................ 140
Starting with KEYLESS-GO ............. 140
Switching off .................................. 160
Tow-starting (vehicle) ..................... 343
Engine electronics
Problem (malfunction) ................... 144
Engine jump starting
see Jump starting (engine)
Engine oil
Adding ........................................... 321
Additives ........................................ 382
Checking the oil level ..................... 320
Checking the oil level using the
dipstick .......................................... 321
Display message ............................ 259
Filling capacity ............................... 382
Notes about oil grades ................... 381
Notes on oil level/consumption .... 320
Temperature (on-board computer,
Mercedes-AMG vehicles) ............... 241
Engine switch-off
see ECO start/stop function
Entering an address
see also Digital Operator's Man-
ual .................................................. 287
ESP
®(Electronic Stability Pro-
gram)
AMG menu (on-board computer) ... 241
Characteristics ................................. 67
Deactivating/activating ................... 67
Display message ............................ 245
Function/notes ................................ 66
General notes .................................. 66
Important safety information ........... 67
Trailer stabilization ........................... 68
Warning lamp ................................. 279
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 66
Exhaust check ................................... 163
Exhaust pipe (cleaning instruc-
tions) .................................................. 328
Exterior lighting
see Lights
Exterior mirrors
Adjusting ....................................... 107 Dipping (automatic) ....................... 109
Folding in when locking (on-board
computer) ...................................... 240
Folding in/out (automatically) ....... 108
Folding in/out (electrically) ........... 108
Out of position (trouble
shoo
ting) ... 109
Setting ........................................... 108
Storing settings (memory func-
tion) ............................................... 110
Storing the parking position .......... 109
Eyeglasses compartment ................. 296
F
Favorites
Overview ........................................ 289
Filler cap
see Refueling
Flat tire
MOExtended tires .......................... 332
Preparing the vehicle ..................... 331
TIREFIT kit ...................................... 333
see Emergency spare wheel
Floormats ........................................... 318
Fog lamps (extended range) ............. 115
Folding the rear bench seat for-
wards/back ....................................... 297
Fording
Off-road ......................................... 167
On flooded roads ........................... 166
Frequencies
Mobile phone ................................. 376
Two-way radio ................................ 376
Fuel
Additives ........................................ 380
Consumption statistics .................. 232
Displaying the current consump-
tion ................................................ 233
Displaying the range ...................... 233
Driving tips .................................... 162
Fuel gauge ....................................... 34
Grade (gasoline) ............................ 379
Important safety notes .................. 379
Low outside temperatures ............. 380
Problem (malfunction) ................... 156
Quality (diesel) ............................... 380
Refueling ........................................ 153
Tank content/reserve fuel ............. 379
Index11

Exit position (3rd row of seats) ...... 101
Folding down/up (third row of
seats) ............................................... 99
Folding the 2nd row of seats
forward electrically ........................ 102
Folding the 2nd row of seats
forward manually ........................... 100
Folding the rear bench seat for-
wards/back ................................... 297
Important safety notes .................... 94
Overview .......................................... 94
Seat heating problem .................... 105
Seat ventilation problem ................ 105
Storing settings (memory func-
tion) ............................................... 110
Switching seat heating on/off ....... 103
Switching seat ventilation on/off .. 104
Section
Sliding sunroof ................................. 89
Selector lever
Cleaning ......................................... 329
Sensors (cleaning instructions) ....... 328
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 382
Coolant (engine) ............................ 382
DEF special additives ..................... 381
Engine oil ....................................... 381
Fuel ................................................ 379
Important safety notes .................. 378
Refrigerant (air-conditioning sys-
tem) ............................................... 383
Washer fluid ................................... 383
Setting the air distribution ............... 131
Setting the airflow ............................ 131
Setting the date/time format
see also Digital Operator's Man-
ual .................................................. 287
Setting the language
see also Digital Operator's Man-
ual .................................................. 287
Setting the time
see also Digital Operator's Man-
ual .................................................. 287
Settings
Factory (on-board computer) ......... 240
On-board computer ....................... 238 SETUP (on-board computer)
............. 241
Side impact air bag ............................. 48
Side marker lamp (display mes-
sage) ................................................... 256
Side windows
Cle
aning ......................................... 327
Convenience closing feature ............ 87
Convenience opening feature .......... 87
Hinged side windows ....................... 86
Important safety information ........... 85
Opening/closing .............................. 86
Overview .......................................... 85
Problem (malfunction) ..................... 89
Resetting ......................................... 88
Reversing feature ............................. 86
SIRIUS services
see also Digital Operator's Man-
ual .................................................. 287
Sliding sunroof
Important safety notes .................... 89
Opening/closing .............................. 90
Problem (malfunction) ..................... 92
Resetting ......................................... 91
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery ....................... 77
Changing the programming ............. 76
Checking the battery ....................... 77
Convenience closing feature ............ 88
Convenience opening feature .......... 87
Display message ............................ 273
Door central locking/unlocking ....... 74
Important safety notes .................... 74
KEYLESS-GO start function .............. 76
Loss ................................................. 78
Mechanical key ................................ 76
Overview .......................................... 74
Positions (ignition lock) ................. 138
Problem (malfunction) ..................... 78
Starting the engine ........................ 140
Smartphone
Starting the engine ........................ 140
SMS
see also Digital Operator's Man-
ual .................................................. 287
Snow chains
Information .................................... 348
Index19

Trailer loads ................................... 387
Vehicle data ................................... 384
Telephone
Accepting a call (multifunction
steering wheel) .............................. 236
Authorizing a mobile phone (con-
necting) ......................................... 291
Connecting a mobile phone (gen-
eral information) ............................2 90
Display message ............................ 272
Menu (on-board computer) ............ 235
Number from the phone book ........2 36
Redialing ........................................ 236
Rejecting/ending a call ................. 236
see also Digital Operator's Man-
ual ..................................................2 87
Switching between mobile
phones ...........................................2 92
Temperature
Coolant (display in the instrument
cluster) .......................................... 230
Coolant (on-board computer,
Mercedes-AMG vehicles) ...............2 41
Engine oil (on-board computer,
Mercedes-AMG vehicles) ...............2 41
Outside temperature ......................2 29
Setting (climate control) ................ 131
Transmission oil (on-board com-
puter, Mercedes-AMG vehicles) ..... 241
Through-loading feature ................... 297
Time
see separate operating instructions
Timing (RACETIMER) ......................... 241
Tire pressure
Calling up (on-board computer) ..... 353
Checking manually ........................ 352
Display message ............................ 268
Maximum ....................................... 352
Not reached (TIREFIT) .................... 334
Notes ............................................. 351
Reached (TIREFIT) .......................... 335
Recommended ............................... 349
Tire pressure loss warning system
General notes ................................ 352
Important safety notes .................. 352
Restarting ...................................... 353 Tire pressure monitor
Checking the tire pressure ele c-
tronica

lly ........................................ 355
Function/notes .............................3 53
General notes ................................ 353
Important safety notes .................. 354
Radio type approval for the tire
pressure monitor ........................... 356
Restarting ...................................... 355
Warning lamp ................................. 286
Warning message .......................... 355
TIREFIT kit
Important safety notes .................. 333
Storage location ............................ 331
Tire pressure not reached .............. 334
Tire pressure reached .................... 335
Using ............................................. 333
Tires
Aspect ratio (definition) ................. 365
Average weight of the vehicle
occupants (definition) .................... 364
Bar (definition) ............................... 364
Changing a wheel .......................... 366
Characteristics .............................. 364
Checking ........................................ 346
Curb weight (definition) ................. 365
Definition of terms ......................... 364
Direction of rotation ...................... 367
Display message ............................ 268
Distribution of the vehicle occu-
pants (definition) ............................ 366
DOT (Department of Transporta-
tion) (definition) ............................. 364
DOT, Tire Identification Number
(TIN) ............................................... 363
GAWR (Gross Axle Weight Rating)
(definition) ..................................... 364
GTW (Gross Trailer Weight) (defi-
nition) ............................................ 365
GVW (Gross Vehicle Weight) (def-
inition) ........................................... 365
GVWR (Gross Vehicle Weight Rat-
ing) (definition) .............................. 365
Important safety notes .................. 346
Increased vehicle weight due to
optional equipment (definition) ...... 364
Information on driving .................... 346
Kilopascal (kPa) (definition) ........... 365
Index21

GWARNING
You could lose control of your vehicle if you do the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the engine.
GWARNING
If you adjust the seat height carelessly, you or
other vehicle occupants could be trapped and
thereby injured. Children in particular could
accidentally press the electrical seat adjust-
ment buttons and become trapped. There is a
risk of injury.
While moving the seats, make sure that your
hands or other body parts do not get under the
lever assembly of the seat adjustment sys-
tem.
GWARNING
If the head restraints are not installed or not
adjusted correctly, they cannot provide pro-
tection as intended. There is an increased risk
of injury in the head and neck area, e.g. in the event of an accident or when braking.
Always drive with the head restraints instal-
led. Before driving off, make sure for every
vehicle occupant that the center of the head
restraint supports the back of the head at
about eye level.
GWARNING
The seat belt does not offer the intended level of protection if you have not moved the back-
rest to an almost vertical position. When brak-
ing 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 ensure that the backrest
is in an almost vertical position and that the
shoulder section of your seat belt is routed
across the center of your shoulder.
!To avoid damage to the seats and the seat
heating, observe the following information:
Rkeep liquids from spilling on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
Rif the seat covers are damp or wet, do not
switch on the seat heating. The seat heat-
ing should also not be used to dry the seats.
Rclean the seat covers as recommended;
see "Interior care".
Rdo not transport heavy loads on the seats.
Do not place sharp objects on the seat
cushions, e.g. knives, nails or tools. The
seats should only be occupied by passen-
gers, if possible.
Rwhen the seat heating is in operation, do
not cover the seats with insulating materi-
als, e.g. blankets, coats, bags, seat covers,
child seats or booster seats.
!Make sure that there are no objects in the
footwell under or behind the seats when mov-
ing the seats back. There is a risk that the
seats and/or the objects could be damaged.
iIt is not possible to remove the head
restraints from the front seats. The rear-com-
partment head restraints, however, can be
removed (
Ypage 98).
For more information, contact a qualified spe-
cialist workshop.
iFurther related subjects:
RCargo compartment enlargement (folding
down the rear bench seat) (Ypage 297)
Seats95
Seats, steering wheel and mirrors
Z

If you drop objects underneath the seats in the
third row, you can remove the panel in order to
reach beneath the seat.
XTo open:fold the corresponding seat up or
down (Ypage 99).
XOnce the seat is folded halfway up or down,
briefly press the button again to stop the
automatic movement.
XGrasp the panel recess.
XPull the panel in the direction of the arrow and
remove it.
XTo close: fold the corresponding seat up or
down (Ypage 99).
XOnce the seat is folded halfway up or down,
briefly press the button again to stop the
automatic movement.
XAttach the panel using the guide pins.
XPush the panel downwards until it engages.
XFold the seat up and down fully to check that
the panel is seated correctly.
Folding down the seats in the second
row manually
Important safety notes
GWARNING
If the seat and backrest are not engaged, they can fold forwards, e.g. in the event of sudden
braking or an accident.
RThis will cause the vehicle occupants to be
forced into the seat belt by a seat or back-
rest which is not engaged. The seat belt can no longer offer the intended level of pro-
tection and could even cause injuries.
RA child restraint system would no longer be
anchored or positioned correctly and would
not be able to perform its required function.
RThe seat backrests cannot restrain objects
or loads in the cargo compartment.
There is an increased risk of injury.
Always make sure that the seat and backrest
are engaged as described:
Rbefore traveling with a passenger on a seat with the EASY-ENTRY/EXIT feature
Rafter you have adjusted the seat
Rafter the EASY-ENTRY/EXIT feature has
been used
Rafter the cargo compartment enlargement
has been folded forwards
GWARNING
The seat does not engage in the entry/exit
position. The seat could fold back suddenly,
e.g. when accelerating, braking, changing
direction suddenly or in the event of an acci-
dent. Persons in the sweep of the seat could
become trapped. There is a risk of injury.
Always fold back a seat which has been folded
forwards before you pull away. Make sure that
the seat and backrest engage fully.
General notes
Getting into or out of the third row of seats: you
can fold forward the right outer seat in the sec-
ond row of seats.
If the right outer rear seat in the second row of
seats is in the entry/exit position: the display
message: 2nd
SeatRow,RightNotLockedappears in the multifunction display, for exam-
ple.
If you fold the seat back until it engages, the
display message disappears.
Pull the backrest firmly to ensure that it is fully
engaged.
iFurther related subjects:
RCargo compartment enlargement (folding
the second row of seats forwards)
(
Ypage 297)
RFolding the seats in the third row forwards/
back (Ypage 99)
Entry position
100Seats
Seats, steering wheel and mirrors

One of the outer seats of the second row is in the
entry/exit position: the multifunction display
shows, e.g. the2nd Seat Row, Right Not
Lockeddisplay message.
If you fold the seat back until it engages, the
display message disappears.
Pull the backrest firmly to ensure that it is fully
engaged.
iFurther related subjects:
RCargo compartment enlargement (folding
the second row of seats forwards)
(
Ypage 297)
RFolding the seats in the third row forwards/
back (Ypage 99)
Folding down the seats
The seats can be folded down electrically if the
vehicle is stationary and the respective rear
door is open.
XPress button :.
The head restraint retracts, the backrest folds
forwards and the seat folds forwards.
The seat can be manually returned to its initial position (
Ypage 100).
Adjusting the multicontour seat
The multicontour seat can be adjusted via the
multimedia system (see the separate operating
instructions).
Adjusting the 4-way lumbar support
:Raises the backrest contour
;Softens the backrest contour
=Lowers the backrest contour
?Hardens the backrest contour
You can adjust the contour of the front seat
backrests individually to provide optimum sup-
port for your back.
Seat heating and seat ventilation
Switching the seat heating on/off
GWARNING
Repeatedly switching on the seat heating can
cause the seat cushion and backrest pads to
become very hot. The health of persons with
limited temperature sensitivity or a limited
ability to react to excessively high tempera-
tures may be affected or they may even suffer
burn-like injuries. There is a risk of injury.
Therefore, do not switch the seat heating on
repeatedly.
Seats103
Seats, steering wheel and mirrors
Z

:stowage net in front-passenger footwell
:Stowage net on the back of the front seats
:Stowage net in cargo compartment
Observe the loading guidelines (
Ypage 294)
and the safety notes regarding stowage spaces
(
Ypage 294).
Through-loading facility in the rear
If objects or loads are not secured when being
transported in the through-loading facility, they
could slip or be thrown around and thereby hit
vehicle occupants.
Observe the loading guidelines (
Ypage 294)
and the safety notes regarding stowage spaces
(
Ypage 294).
The through-loading facility is opened from the
cargo compartment.
XIf necessary, fold the third row of seats
forward (Ypage 99).
XFold down the rear seat armrest.
XPull the center head restraint on the rear
bench seat into the uppermost position
(
Ypage 96).
XSlide release catch :to the left and swing
flap ;to the left until it is lying on the rear
side of the rear bench seat.
XPush cover =forward until it is lying on the
rear seat armrest.
Cargo compartment enlargement
Important safety notes
GWARNING
If the rear bench seat/rear seat and seat
backrest are not engaged they could fold for-
wards, e.g. when braking suddenly or in the
event of an accident.
RThe vehicle occupant would thereby be
pushed into the seat belt by the rear bench
Stowage areas297
Stowage and features
Z

XOpen the hood (Ypage 319).
XUse a dry cloth to remove any moisture from
the fuse box.
XTo open:open clamps ;.
XFold up cover :in the direction of the arrow
and remove it.
XTo close: check whether the seal is seated
correctly in cover :.
XInsert cover:at the side of the fuse box into
the retainers.
XFold down cover :and close clamps ;.
XClose the hood.
Fuse box under the rear bench seat
XFold the left-hand rear bench seat forward
(Ypage 297).
XTo open:reach into recesses ;on each side
of fuse box cover :.
XFold cover:up in the direction of the arrow
and remove it from the fuse box.
iThe fuse allocation chart is located in a
recess at the side of the fuse box.
XTo close: place cover :on the fuse box.
XPress cover :down until you feel the clamps
engage.
XFold back the left-hand rear bench seat
(Ypage 297).
Fuses345
Breakdown assistance
Z