2018 MERCEDES-BENZ GLS SUV fuel type

Rear seatsAdjusting ....................................... 101
Display message ............................ 277
Rear view camera
Cleaning instructions ..................... 334
Display in the multimedia system .. 200
Function/notes ............................. 199
Switching on/off ........................... 200
Rear window defroster
Problem (malfunction) ................... 135
Switching on/off ........................... 134
Rear window wiper
Replacing the wiper blade .............. 124
Switching on/off ........................... 123
Rear-view mirror
Anti-glare (manual) ........................ 110
Dipping (automatic) ....................... 112
Reflective safety jacket .................... 338
Refrigerant (air-conditioning sys-
tem)
Important safety notes .................. 391
Refueling
Fuel gauge ....................................... 37
Important safety notes .................. 155
Refueling process .......................... 156
see Fuel
Remote control
Garage door opener ....................... 321
Replacing bulbs
General notes ................................ 120
High-beam headlamps ................... 121
Important safety notes .................. 120
Installing/removing the cover
(front wheel arch) .......................... 121
Low-beam headlamps .................... 121
Overview of bulb types .................. 120
Turn signals (front) ......................... 122
Reporting safety defects .................... 32
Rescue card ......................................... 32
Reserve (fuel tank)
see Fuel
Reserve fuel
Display message ............................ 263
Warning lamp ................................. 288
Residual heat (climate control) ........ 135
Restraint system
Display message ............................ 256
Introduction ..................................... 44 Warning lamp ................................. 287
Warning lamp (function) ................... 45
Reversing feature
Panorama sliding sunroof ................ 93
Roller sunblinds ............................... 95
Side windows ................................... 89
Sliding sunroof ................................. 93
Tailgate ............................................ 85
Reversing lamps (
display mes-
sage) ................................................... 260
Roadside Assistance (breakdown) .... 29
Roller sunblind
Panorama roof with power tilt/
sliding panel ..................................... 94
Rear side windows ......................... 310
Roof carrier ........................................ 308
Roof lining and carpets (cleaning
guidelines) ......................................... 337
Roof load (maximum) ........................ 392
Route (navigation)
see Route guidance (navigation)
Route guidance
see also Digital Operator's Man-
ual .................................................. 292
Route guidance (navigation) ............ 237
Route guidance active ...................... 238
S
Safety
Children in the vehicle ..................... 59
see Occupant safety
see Operating safety
Safety system
see Driving safety systems
SD card
Inserting ........................................ 298
Inserting/removing ........................ 298
Removing ....................................... 298
SD memory card
see also Digital Operator's Man-
ual .................................................. 292
Selecting ........................................ 239
Search & Send
see also Digital Operator's Man-
ual .................................................. 292
Seat
Correct driver's seat position ........... 97
18Index

SUV(Sport Utility Vehicle) ....................... 30
Switching air-recirculation mode
on/off .................................................1 35
Switching on media mode
Via the device list .......................... 298
T
Tachometer ........................................ 233
Tailgate
Display message ............................ 276
Emergency unlocking ....................... 88
Important safety notes .................... 84
Limiting the opening angle ............... 88
Opening dimensions ...................... 392
Opening/closing (automatically
from inside) ...................................... 87
Opening/closing (automatically
from outside) ................................... 86
Opening/closing (from outside) ....... 85
Power closing .................................. 84
Tank
see Fuel tank
Tank content
Fuel gauge ....................................... 37
Technical data
Capacities ...................................... 386
Information .................................... 384
Tires/wheels ................................. 379
Trailer loads ................................... 395
Vehicle data ................................... 392
Telephone
Accepting a call (multifunction
steering wheel) .............................. 240
Authorizing a mobile phone (con-
necting) ......................................... 296
Authorizing a mobile phone via the
device manager (connecting) ......... 297
Connecting a mobile phone
(device manager) ........................... 297
Connecting a mobile phone (gen-
eral information) ............................ 296
Display message ............................ 277
Menu (on-board computer) ............ 240
Number from the phone book ........ 240
Redialing ........................................ 240
Rejecting/ending a call ................. 240 see also Digital Operator's Man-
ual .................................................. 292
Temperature
Coolant (display in the instrument
cluster) .......................................... 234
Coolant (on-board computer,
Mercedes-AMG vehicles) ............... 245
Engine oil (on-board computer,
Mercedes-AMG vehicles) ............... 245
Outside temperature ...................... 233
Setting (climate control) ................ 132
Transmission oil (on-board com-
puter, Mercedes-AMG vehicles) ..... 245
Through-loading feature ................... 303
Timing (RACETIMER) ......................... 246
Tire pre
ssure
Calling up (on-board computer) ..... 361
Checking manually ........................ 360
Display message ............................ 273
Maximum ....................................... 360
Not reached (TIREFIT) .................... 342
Notes ............................................. 359
Reached (TIREFIT) .......................... 343
Recommended ............................... 357
Tire pressure loss warning system
General notes ................................ 360
Important safety notes .................. 361
Restarting ...................................... 361
Tire pressure monitor
Checking the tire pressure elec-
tronically ........................................ 363
Function/notes ............................. 361
General notes ................................ 361
Important safety notes .................. 362
Radio type approval for the tire
pressure monitor ........................... 364
Restarting ...................................... 364
Warning lamp ................................. 291
Warning message .......................... 363
Tire pressure table ............................ 358
TIREFIT kit
Important safety notes .................. 341
Storage location ............................ 339
Tire pressure not reached .............. 342
Tire pressure reached .................... 343
Using ............................................. 341
Tires
Aspect ratio (definition) ................. 373
Index21

Parking .......................................... 161
Parking for a long period ................164
Pulling away ................................... 143
Raising ...........................................3 76
Reporting problems ......................... 31
Securing from rolling away ............ 375
Towing away .................................. 349
Transporting .................................. 351
Unlocking (in an emergency) ........... 84
Unlocking (SmartKey) ......................7 7
Vehicle data ................................... 392
Vehicle battery
see Battery (vehicle)
Vehicle data ....................................... 392
Vehicle data (off-road driving)
Approach/departure angle ............ 394
Fording depth ................................ 393
Maximum gradient climbing abil-
ity .................................................. 394
Vehicle dimensions ........................... 392
Vehicle emergency locking ................ 84
Vehicle identification number
see VIN
Vehicle identification plate .............. 385
Vehicle level
AIRMATIC ...................................... 190
Vehicle level (display message) ....... 265
Vehicle tool kit .................................. 339
Video
Operating the DVD .........................2 39
see also Digital Operator's Man-
ual ..................................................2 92
VIN ...................................................... 385
Seat ............................................... 386
Type plate ...................................... 385
W
Warning and indicator lamps ABS ................................................ 282
Brakes ...........................................2 81
Coolant .......................................... 288
Distance Pilot DISTRONIC ............. 290
Distance warning ........................... 290
Engine diagnostics ......................... 288
ESP
®.............................................. 284
ESP®OFF ....................................... 285
Fuel tank ........................................ 288 Overview .......................................... 37
Parking brake ................................ 287
PASSENGER AIR BAG ...................... 45
Reserve fuel ................................... 288
Restraint system ............................ 287
Seat belt ........................................ 280
Tire pressure monitor .................... 291
Warranty .............................................. 28
Washer fluid
Display message ............................ 278
Weather display (COMAND)
see also Digital Operator's Man-
ual .................................................. 292
Wheel and tire combinations
Tires ............................................... 379
Wheel bolt tightening torque ........... 378
Wheel chock ...................................... 375
Wheels
Changing a wheel .......................... 374
Checking ........................................ 354
Cleaning ......................................... 333
Emergency spare wheel ................. 380
Important safety notes .................. 354
Information on driving .................... 354
Interchanging/changing ................ 374
Mounting a new wheel ................... 377
Mounting a wheel .......................... 375
Overview ........................................ 354
Removing a wheel .......................... 377
Snow chains .................................. 356
Storing ........................................... 375
Tightening torque ........................... 378
Wheel size/tire size ....................... 379
Window curtain air bag
Display message ............................ 257
Operation ......................................... 51
Windows
see Side windows
Windshield
Defrosting ...................................... 133
Infrared reflective .......................... 324
Windshield washer fluid
see Windshield washer system
Windshield washer system
Adding washer fluid ....................... 329
Important safety notes .................. 391
Windshield wipers
Problem (malfunction) ................... 124
24Index

If the seat belt pre-tensioning is not reduced:
XMove the seat backrest or seat back slightly
when the vehicle is stationary.
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. Informa-
tion about the convenience function can be
found under "Belt adjustment" (
Ypage 48).
PRE-SAFE®PLUS (anticipatory occu-
pant protection system PLUS)
Introduction
PRE-SAFE®PLUS is only available in vehicles
with the Driving Assistance PLUS package.
Using the radar sensor system, PRE-SAFE
®
PLUS is able to detect that a head-on or rear-end
collision is imminent. In certain hazardous sit-
uations, PRE-SAFE
®PLUS takes pre-emptive
measures to protect the vehicle occupants.
Important safety notes
The intervention of PRE-SAFE®PLUS cannot
prevent an imminent collision.
The driver is not warned about the intervention
of PRE-SAFE
®PLUS.
PRE-SAFE®PLUS does not intervene if the vehi-
cle is backing up.
When driving, or when parking or exiting a park-
ing space with assistance from Parking Pilot,
PRE-SAFE
®PLUS will not apply the brakes.
Function
PRE-SAFE®PLUS intervenes in certain situa-
tions if the radar sensor system detects an
imminent head-on or rear-end collision. PRE-SAFE
®PLUS takes the following measures
depending on the hazardous situation detected:
Rif the radar sensor system detects that a
head-on collision is imminent, the seat belts
are pre-tensioned.
Rif the radar sensor system detects that a rear-
end collision is imminent:
-the brake pressure is increased if the driver
applies the brakes when the vehicle is sta-
tionary.
-the seat belts are pre-tensioned.
The PRE-SAFE®PLUS braking application is can-
celed:
Rif the accelerator pedal is depressed when a
gear is engaged
Rif the risk of a collision passes or is no longer
detected
Rif Distance Pilot DISTRONIC indicates an
intention to pull away
If the hazardous situation passes without result-
ing in an accident, the original settings are
restored.
Automatic measures after an acci-
dent
Immediately after an accident, the following
measures are implemented, depending on the
type and severity of the impact:
Rthe hazard warning lamps are activated
Rthe emergency lighting is activated
Rthe vehicle doors are unlocked
Rthe front side windows are lowered
Rvehicles with a memory function: the electri-
cally adjustable steering wheel is raised when
the driver's door is opened
Rthe engine is switched off and the fuel supply
is cut off
Rvehicles with mbrace: automatic emergency
call
Children in the vehicle
Important safety notes
Accident statistics show that children secured
in the rear seats are safer than children secured
in the front-passenger seat. For this reason,
Mercedes-Benz strongly advises that you install
Children in the vehicle59
Safety
Z

Opening the fuel filler flap
:To open 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 are now in key posi-
tion u. This is the same as the key 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 263).
In addition, the ;Check Engine warning
lamp may light up (
Ypage 288).
Refueling157
Driving and parking
Z

When Distance Pilot DISTRONIC is deactivated
or not available, Steering Pilot is deactivated
automatically.
Level control (vehicles with the Off-
Road Engineering package)
Important safety notes
Level control adapts the vehicle level automati-
cally to the current operating and driving situa-
tion. This results in reduced fuel consumption
and improved handling.
Make changes to the vehicle level while the
vehicle is in motion. This enables the vehicle to
adjust to the new level as quickly as possible.
The vehicle level may change visibly if you park
the vehicle and the outside temperature
changes. If the temperature drops, the vehicle
level is lower; with an increase in temperature,
the vehicle level rises.
If you unlock the vehicle or open a door, the
vehicle begins to compensate for load discrep-
ancies while still parked. However, for signifi-
cant level changes, such as after the vehicle has
been stationary for a long period, the engine
must be on. For safety reasons, the vehicle is
only lowered when the doors are closed. Low-
ering is interrupted if a door is opened, and it
continues once the door has been closed.
Further information about "Driving off-road"
(
Ypage 170).
GWARNING
When the vehicle is being lowered, people
could become trapped if their limbs are
between the vehicle body and the wheels or
underneath the vehicle. There is a risk of
injury.
Make sure no one is underneath the vehicle or
in the immediate vicinity of the wheel arches
when the vehicle is being lowered.
GWARNING
When you drive with the vehicle raised, the
driving characteristics could be impaired by
the vehicle's raised center of gravity. The vehi-
cle could rollover more easily, for example on
a bend. There is a risk of an accident.
Always select as low a vehicle level as possi-
ble and adjust your driving style.
GWARNING
When you drive with the chassis lowered or
raised, the vehicle's braking and driving char-
acteristics can be significantly impaired. You
could also exceed the permissible vehicle
height if the chassis is raised. There is a risk of an accident.
Adjust the vehicle level before pulling away.
GWARNING
Due to the high center of gravity, the vehicle
may start to skid and roll over in the event of
an abrupt steering maneuver and/or when
the vehicle's speed is not adapted to the road
conditions. There is a risk of an accident.
Always adapt your speed and driving style to
the vehicle's driving characteristics and to the
prevailing road and weather conditions.
!When driving on extremely rough terrain,
select a high vehicle level in good time. Make
sure there is always sufficient ground clear-
ance. You will otherwise damage the vehicle.
RUtility vehicles have a significantly higher roll- over rate than other types of vehicles.
Failure to operate this vehicle safely may
result in an accident, rollover of the vehicle,
and severe or fatal injury.
RIn a rollover crash, an unbelted person is sig-
nificantly more likely to die than a person
wearing a seat belt.
You and all vehicle occupants should always
wear your seat belts.
Basic settings
The extent to which the vehicle is raised or low-
ered depends on the basic setting selected.
Select:
Rthe Comfort orSport drive program for driv-
ing on normal roads
Rthe Offroad drive program for driving on eas-
ily negotiable off-road terrain
Rthe Offroad Plus drive program for off-road
driving
184Driving systems
Driving and parking

Mercedes-AMG vehicles:if you have selected
the Sport Plus drive program:
Rthe roll angle is reduced even more signifi-
cantly
Rthe driving is designed for maximum dyna-
mism
Vehicle level
Important safety notes
GWARNING
When the vehicle is being lowered, people
could become trapped if their limbs are
between the vehicle body and the wheels or
underneath the vehicle. There is a risk of
injury.
Make sure no one is underneath the vehicle or
in the immediate vicinity of the wheel arches
when the vehicle is being lowered.
GWARNING
When you drive with the vehicle raised, the
driving characteristics could be impaired by
the vehicle's raised center of gravity. The vehi-
cle could rollover more easily, for example on
a bend. There is a risk of an accident.
Always select as low a vehicle level as possi-
ble and adjust your driving style.
GWARNING
When you drive with the chassis lowered or
raised, the vehicle's braking and driving char-
acteristics can be significantly impaired. You
could also exceed the permissible vehicle
height if the chassis is raised. There is a risk of an accident.
Adjust the vehicle level before pulling away.
GWARNING
Due to the high center of gravity, the vehicle
may start to skid and roll over in the event of
an abrupt steering maneuver and/or when
the vehicle's speed is not adapted to the road
conditions. There is a risk of an accident.
Always adapt your speed and driving style to
the vehicle's driving characteristics and to the
prevailing road and weather conditions.
!When driving on extremely rough terrain,
select a high vehicle level in good time. Make
sure there is always sufficient ground clear-
ance. You will otherwise damage the vehicle.
RUtility vehicles have a significantly higher roll- over rate than other types of vehicles.
Failure to operate this vehicle safely may
result in an accident, rollover of the vehicle,
and severe or fatal injury.
RIn a rollover crash, an unbelted person is sig-
nificantly more likely to die than a person
wearing a seat belt.
You and all vehicle occupants should always
wear your seat belts.
General notes
Only select raised level if this is appropriate for
the road conditions. Otherwise, fuel consump-
tion may increase and handling may be affected.
Make changes to the vehicle level while the
vehicle is in motion. This enables the vehicle to
adjust to the new level as quickly as possible.
The vehicle level may change visibly if you park
the vehicle and the outside temperature
changes. If the temperature drops, the vehicle
level is lower; with an increase in temperature,
the vehicle level rises.
If you unlock the vehicle or open a door, the
vehicle begins to compensate for load discrep-
ancies while still parked. However, for signifi-
cant level changes, such as after the vehicle has
been stationary for a long period, the engine
must be on. For safety reasons, the vehicle is
only lowered when the doors are closed. Low-
ering is interrupted if a door is opened, and it
continues once the door has been closed.
Vehicles with no trailer coupled: below a
speed of 37 mph (60 km/h) you can choose
between the normal and raised vehicle level.
Sel

ect the normal vehicle level for normal road
surfaces and the raised vehicle level for driving
with snow chains or on particularly poor road
surfaces. Your selection remains stored even if
you remove the SmartKey from the ignition lock.
If you try to select raised level at a speed above
37 mph (60 km/h), the Drive More Slowly
message appears in the multifunction display.
190Driving systems
Driving and parking

Ris affected more by strong crosswinds
Rdemands more sensitive steering
Rhas a larger turning circle
This could impair the handling characteristics.
When towing a trailer, always adjust your speed
to the current road and weather conditions. Do
not exceed the maximum permissible speed for
your vehicle/trailer combination.
Notes on towing a trailer
General notes
!If you have a trailer tow hitch retrofitted,
changes to the cooling system and drive train
may be necessary, depending on the vehicle
type.
If you have a trailer tow hitch retrofitted,
observe the anchorage points on the chassis
frame.
RDo not exceed the legally prescribed maxi-
mum speed for vehicle/trailer combinations
in the relevant country.
This lowers the risk of an accident.
ROnly install an approved trailer coupling on
your vehicle.
More information on availability and installa-
tion can be obtained at any qualified special-
ist workshop.
RThe bumpers of your vehicle are not suitable
for installing detachable trailer couplings.
RDo not install hired trailer couplings or other
detachable trailer couplings on the bumpers
of your vehicle.
RIf you no longer need the ball coupling,
remove it from the ball coupling recess. This
will reduce the risk of damage to the ball cou-
pling.
When towing a trailer, set the tire pressure on
the rear axle of the towing vehicle for the max-
imum load. You will find the values in the tire
pressure table in the fuel filler flap of the vehicle (
Ypage 372).
Please note that when towing a trailer, the fol-
lowing driving systems have limited availability
or are not available at all:
RParking Assist PARKTRONIC (Ypage 192)
RBlind Spot Assist (Ypage 209)
RActive Lane Keeping Assist (Ypage 215) On vehicles without level control, the height of
the ball coupling will alter according to the load
placed on the vehicle. If necessary, use a trailer
with a height-adjustable drawbar.
You will find installing dimensions and loads
under "Technical data" (
Ypage 395).
Driving tips
Also observe the notes on pulling away with a
trailer (Ypage 143).
The maximum permissible speed for vehicle/
trailer combinations depends on the type of
trailer. Before beginning the journey, check the
trailer's documents to see what the maximum
permissible speed is for your trailer. Observe the
legally permissible maximum speed in the rele-
vant country.
For certain Mercedes-Benz vehicles, the maxi-
mum permissible rear axle load is increased
when towing a trailer. See "Technical data" to
find out whether this applies to your vehicle
(
Ypage 395). If you utilize any of the added
maximum rear axle load when towing a trailer,
the vehicle/trailer combination may not exceed
a maximum speed of 60 mph (100 km/h) for
reasons concerning the operating permit. This
also applies in countries in which the maximum
permissible speed for car/trailer combinations
is greater than 60 mph (100 km/h).
When towing a trailer, your vehicle's handling
characteristics will be different in comparison
with when driving without a trailer.
Use the left-hand steering wheel paddle shifter
to shift into a lower gear in good time on long
and steep downhill gradients.
This also applies if you have activated cruise
control or Distance Pilot DISTRONIC.
This will use the braking effect of the engine, so that less braking will be required to maintain the
speed. This relieves the load on the brake sys-
tem and prevents the brakes from overheating
and wearing too quickly. If you need additional
braking, depress the brake pedal repeatedly
rather than continuously.
Driving tips
If the trailer swings from side to side:
XDo not accelerate.
XDo not counter-steer.
XBrake if necessary.
Towing a trailer225
Driving and parking
Z