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

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

Remote controlGarage door opener ....................... 315
Programming (garage door
opener) .......................................... 316
Replacing bulbs
General notes ................................ 117
High-beam headlamps ................... 119
Important safety notes .................. 117
Installing/removing the cover
(front wheel arch) .......................... 118
Low-beam headlamps .................... 118
Overview of bulb types .................. 118
Turn signals (front) ......................... 119
Reporting safety defects .................... 30
Rescue card ......................................... 30
Reserve (fuel tank)
see Fuel
Reserve fuel
Display message ............................ 259
Warning lamp ................................. 283
Residual heat (climate control) ........ 133
Restraint system
Display message ............................ 252
Introduction ..................................... 41
Warning lamp ................................. 282
Warning lamp (function) ................... 42
Reversing feature
Panorama sliding sunroof ................ 90
Roller sunblinds ............................... 91
Side windows ................................... 86
Sliding sunroof ................................. 90
Tailgate ............................................ 82
Reversing lamps (display mes-
sage) ................................................... 256
Roadside Assistance (breakdown) .... 27
Roller sunblind
Panorama roof with power tilt/
sliding panel ..................................... 91
Rear side windows ......................... 304
Roof carrier ........................................ 302
Roof lining and carpets (cleaning
guidelines) ......................................... 330
Roof load (maximum) ........................ 384
Route (navigation)
see Route guidance (navigation) Route guidance
see also Digital Operator's Man-
ual .................................................. 287
Route guidance (navigation) ............ 233
S
Safety
Children in the vehicle ..................... 57
see Occupant safety
see Operating safety
Safety system
see Driving safety systems
SD card
Inserting ........................................ 292
Inserting/removing ........................ 292
Removing ....................................... 292
SD memory card
see also Digital Operator's Man-
ual .................................................. 287
Selecting ........................................ 235
Search & Send
see also Digital Operator's Man-
ual .................................................. 287
Seat belts
Adjusting the driver's and front-
passenger seat belt ......................... 45
Adjusting the height ......................... 44
Cleaning ......................................... 330
Correct usage .................................. 44
Fastening ......................................... 44
Important safety guidelines ............. 43
Introduction ..................................... 42
Releasing ......................................... 45
Switching belt adjustment on/off
(on-board computer) ...................... 240
Warning lamp ................................. 275
Warning lamp (function) ................... 45
Seats
Adjusting (electrically) ..................... 96
Adjusting the 4-way lumbar sup-
port ................................................ 103
Adjusting the head restraint ............ 96
Calling up a stored setting (mem-
ory function) .................................. 111
Cleaning the cover ......................... 330
Correct driver's seat position ........... 94
Entry position (3rd row of seats) .... 100
18Index

VideoOperating the DVD ......................... 235
see also Digital Operator's Man-
ual .................................................. 287
VIN ...................................................... 377
Seat ............................................... 378
Type plate ...................................... 377
W
Warning and indicator lamps ABS ................................................ 277
Brakes ........................................... 276
Check Engine ................................. 283
Coolant .......................................... 283
Distance Pilot DISTRONIC ............. 285
Distance warning ........................... 285
ESP
®.............................................. 279
ESP®OFF ....................................... 280
Fuel tank ........................................ 283
Overview .......................................... 34
Parking brake ................................ 282
PASSENGER AIR BAG ...................... 42
Reserve fuel ................................... 283
Restraint system ............................ 282
Seat belt ........................................ 275
Tire pressure monitor .................... 286
Warranty .............................................. 26
Washer fluid
Display message ............................ 273
Weather display (COMAND)
see also Digital Operator's Man-
ual .................................................. 287
Wheel and tire combinations
Tires ............................................... 371
Wheel bolt tightening torque ........... 370
Wheel chock ...................................... 367
Wheels
Changing a wheel .......................... 366
Checking ........................................ 346
Cleaning ......................................... 326
Emergency spare wheel ................. 372
Important safety notes .................. 346
Information on driving .................... 346
Interchanging/changing ................ 366
Mounting a new wheel ................... 369
Mounting a wheel .......................... 367
Overview ........................................ 346 Removing a wheel .......................... 369
Snow chains .................................. 348
Storing ........................................... 367
Tightening torque ........................... 370
Wheel size/tire size ....................... 371
Window curtain air bag
Display message ............................ 253
Operation ......................................... 48
Windows
see Side windows
Windshield
Defrosting ...................................... 132
Windshield washer fluid
see Windshield washer system
Windshield washer system
Adding washer fluid ....................... 322
Important safety notes .................. 383
Windshield wipers
Problem (malfunction) ................... 122
Rear window wiper ........................ 120
Replacing the wiper blades ............ 120
Switching on/off ........................... 119
Winter drivin
g
Slippery road surfaces ................... 167
Winter operation
Overview ........................................ 348
Radiator cover ............................... 320
Winter tires
M+S tires ....................................... 348
Wiper blades
Cleaning ......................................... 327
Replacing ....................................... 120
Replacing (rear window) ................ 121
Replacing (windshield) ................... 121
Wooden trim (cleaning instruc-
tions) .................................................. 330
Workshop
see Qualified specialist workshop
Z
ZONE functionSwitching on/off ........................... 132
24Index

Instrument cluster
FunctionPage
:Speedometer wit hsegments22 9
Warning and indicator lamps:
å ESP®OF F279
! ABS277
Braking276
$ (USAonly)
J (Canada only)
LLow-beam headlamps113
T Parking lamp s113
÷ ESP®27 9
K High-beam headlamps113
Electric parking brak e(red)28 2
F (USAonly)
! (Canada only)
!Electric parking brak e
(yellow)28 2
· Distanc ewarning28 5
;#! Turn signals113
=Multifunction display231
FunctionPag e
?Tachometer229
Warning and indicator lamps:
R Rear fog lamp113
; Enginediagnostics28 3
h Tirepressur emonitor28 6
6 Restrain tsystem42
ü Seat belt s275
% Diesel engine: preglow140
ACoolan ttemperature gauge23 0
Warning and indicator lamps:
? Coolan t283
BFue llevel indicator
Warning and indicator lamps:
8 Reserve fuel wit hfuel
filler flap location indicator
(right-hand side )
283
CInstrumen tcluste rlighting22 9
iInformation on displayin gth eoutside tem-
peratur ein th emultifunction display can be foun
dunder "Outside temperature display"
(Ypage 229).
34Instrument cluster
At a glance

Opening the fuel filler flap
:Opening the fuel filler flap
;To insert the fuel filler cap
=Instruction label for fuel type to be refueled
?Tire pressure table
XSwitch off the engine.
XRemove the SmartKey from the ignition lock.
or, on vehicles with KEYLESS ‑GO:
XOpen the driver's door.
The vehicle electronics now have status 0.
This is the same as the SmartKey having been
removed.
The driver’s door can be closed again.
XPress the fuel filler flap in the direction of
arrow :.
The fuel filler flap swings up.
XTurn the fuel filler cap counterclockwise and
remove it.
XInsert the fuel filler cap into the holder
bracket on the inside of filler flap ;.
XCompletely insert the filler neck of the fuel
pump nozzle into the tank, hook in place and
refuel.
XOnly fill the tank until the pump nozzle
switches off.
Do not add any more fuel after the pump stops
filling for the first time. Otherwise, fuel may leak
out.
Vehicles with a diesel engine: the filler neck is
designed for refueling at diesel filling pumps.
Closing the fuel filler flap
XReplace the cap on the filler neck and turn
clockwise until it engages audibly.
XClose the fuel filler flap.
Close the fuel filler flap before locking the vehi-
cle.
If you are driving with the fuel filler cap open, the
8 reserve fuel warning lamp flashes. A mes-
sage appears in the multifunction display
(
Ypage 259).
In addition, the ;Check Engine warning
lamp may light up (
Ypage 283).
Refueling155
Driving and parking
Z

tenance Booklet or by the service interval dis-
play.
Fuel consumption also increases when driving in cold weather, in stop-start traffic and in hilly ter-
rain.
Drinking and driving
GWARNING
Drinking and driving and/or taking drugs and driving are very dangerous combinations.
Even a small amount of alcohol or drugs can
affect your reflexes, perceptions and judg-
ment.
The possibility of a serious or even fatal acci-
dent is greatly increased when you drink or
take drugs and drive.
Do not drink or take drugs and drive or allow
anyone to drive who has been drinking or tak-
ing drugs.
Emission control
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation.
Certain engine systems are designed to keep
the level of poisonous components in exhaust
fumes within legal limits.
These systems only work at peak efficiency if
they are serviced exactly in accordance with the
manufacturer's specifications. Always have
work on the engine carried out at a qualified
specialist workshop. Mercedes-Benz recom-
mends that you use an authorized Mercedes-
Benz Center for this purpose. In particular, work
relevant to safety or on safety-related systems
must be carried out at a qualified specialist
workshop.
The engine settings must not be changed under any circumstances. Furthermore, all specific
service work must be carried out at regular
intervals and in accordance with the Mercedes-
Benz service requirements. Details can be found in the Maintenance Booklet.
ECO display
The ECO display shows you how economical
your driving style is. The ECO display assists you
in achieving the most economical driving style
for the selected settings and prevailing condi-
tions. Your driving style can significantly influ-
ence the vehicle's consumption.
:Acceleration
;Coasting
=Constant
?Additional range achieved
Range ?is shown under Bonus
fr.Startand
represents the additional range achieved since
the beginning of the journey as a result of an
adapted driving style.
If the fuel level has dropped into the reserve
range, the Reserve Fuel
message is shown in
the multifunction display instead of range ?.
The 8 warning lamp in the instrument cluster
also lights up (
Ypage 283).
Driving tips163
Driving an d parking
Z

Engine
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
;NThe yellow Check Engine warning lamp lights up while the engine is running.
There may be a malfunction, for example:
Rin the engine management
Rin the fuel injection system
Rin the exhaust system
Rin the ignition system (for vehicles with gasoline engines)
Rin the fuel system
The emission limit values may be exceeded and the engine may be in emergency
mode.
XVisit a qualified specialist workshop immediately.
Vehicles with a diesel engine: the fuel tank has been run dry (
Ypage 156).
XStart the engine three to four times after refueling.
If the yellow Check Engine warning lamp goes out, emergency running mode is
canceled. The vehicle need not be checked.
In some states, you must immediately visit a qualified specialist workshop as soon
as the yellow Check Engine warning lamp lights up. This is due to the legal require-
ments in effect in these states. If in doubt, check whether such legal regulations
apply in the state in which you are currently driving.
8N The yellow reserve fuel warning lamp lights up while the engine is running.
The fuel level has dropped into the reserve range.
XRefuel at the nearest gas station.
8N The yellow reserve fuel warning lamp flashes while the vehicle is in motion.
In addition, the ;Check Engine warning lamp may light up.
The fuel filler cap is not closed correctly or the fuel system is leaking.
XCheck that the fuel filler cap is correctly closed.
XIf the fuel filler cap is not correctly closed: close the fuel filler cap.
XIf the fuel filler cap is closed:visit a qualified specialist workshop.
?NThe red coolant warning lamp lights up while the engine is running and the
coolant temperature gauge is at the start of the scale.
The temperature sensor for the coolant temperature gauge is malfunctioning.
The coolant temperature is no longer being monitored. There is a risk of engine
damage if the coolant temperature is too high.
XPull over and stop the vehicle safely and switch off the engine, paying attention
to road and traffic conditions. Do not continue driving under any circumstances.
XSecure the vehicle against rolling away (Ypage 159).
XConsult a qualified specialist workshop.
Warning and indicator lamps in the instrument cluster283
On-board computer and displays
Z

Damaged seals or electrical components can
lead to leaks or failures.
Cleaning the paintwork
!Do not affix:
Rstickers
Rfilms
Rmagnetic plates or similar items
to painted surfaces. You could otherwise
damage the paintwork.
Scratches, corrosive deposits, areas affected by
corrosion and damage caused by inadequate
care cannot always be completely repaired. In
such cases, visit a qualified specialist workshop.
XRemove dirt immediately, where possible,
while avoiding rubbing too hard.
XSoak insect remains with insect remover and
rinse off the treated areas afterwards.
XSoak bird droppings with water and rinse off
the treated areas afterwards.
XRemove coolant, brake fluid, tree resin, oils,
fuels and greases by rubbing gently with a
cloth soaked in petroleum ether or lighter
fluid.
XUse tar remover to remove tar stains.
XUse silicone remover to remove wax.
If water no longer forms "beads" on the paint
surface, use the paint care products recommen-
ded and approved by Mercedes-Benz. This is the
case approximately every three to five months,
depending on the climate conditions and the
care product used.
If dirt has penetrated the paint surface or if the
paint has become dull, the paint cleaner reco m-
me

nded and approved by Mercedes-Benz
should be used.
Do not use these care products in the sun or on
the hood while the hood is hot.
XUse a suitable touch-up stick, e.g. MB Touch-
Up Stick, to repair slight damage to the paint- work quickly and provisionally.
Matte finish care
!Never polish the vehicle or the light alloy
wheels. Polishing causes the finish to shine.
!The following may cause the paint to
become shiny and thus reduce the matte
effect:
Rstrong rubbing of the paintwork with
unsuitable materials
Rfrequent use of automatic car washes
Rwashing the vehicle in direct sunlight
!Never use paint cleaner, buffing or polishing
products, or gloss preserver, e.g. wax, for the
purpose of paintwork care. These products
are only suitable for high-gloss surfaces. Their
use on vehicles with matte paintwork leads to considerable surface damage or, more spe-
cifically, to shiny, spotted areas.
Always have paintwork repairs carried out at a
qualified specialist workshop.
!Do not use wash programs with a hot wax
treatment under any circumstances.
Observe these notes if your vehicle has a clear
matte finish. This will help you to avoid damage to the paintwork due to incorrect treatment.
These notes also apply to light alloy wheels with
a clear matte finish.
iThe vehicle should ideally be washed by
hand using a soft sponge, car shampoo and
plenty of water.
iUse only insect remover and car shampoo
from the range of recommended and
approved Mercedes-Benz care products.
Cleaning the vehicle parts
Cleaning the wheels
GWARNING
The water jet from a circular jet nozzle (dirt
blasters) can cause invisible exterior damage
to the tires or chassis components. Compo-
nents damaged in this way may fail unexpect-
edly. There is a risk of an accident.
Do not use power washers with circular jet
nozzles to clean the vehicle. Have damaged
tires or chassis components replaced imme-
diately.
!Do not use acidic wheel cleaning products
to remove brake dust. This could damage
wheel bolts and brake components.
326Care
Maintenance and care