2018 MERCEDES-BENZ GLS SUV tire pressure

Features .............................................. 308
Maintenance and care......................325
Engine compartment ........................... 325
ASSYST PLUS ...................................... 329
Care ..................................................... 330
Breakdown assistance .....................338
Where will I find...? .............................. 338
Flat tire ................................................ 339
Battery (vehicle) .................................. 344
Jump-starting ....................................... 346
Towing and tow-starting ...................... 349
Fuses ................................................... 352
Wheels and tires ............................... 354
Important safety notes ........................ 354
Operation ............................................ 354
Winter operation .................................. 356
Tire pressure ....................................... 357
Loading the vehicle .............................. 364
All about wheels and tires ................... 367
Changing a wheel ................................ 374
Wheel and tire combinations ............... 379
Emergency spare wheel ....................... 380
Technical data ................................... 384
Information regarding technical data ... 384
Vehicle electronics .............................. 384
Identification plates ............................. 385
Service products and filling capaci-
ties ...................................................... 386
Vehicle data ......................................... 392
Vehicle data for off-road driving .......... 393
Trailer tow hitch ................................... 395
Contents3

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

Average weight of the vehicle
occupants (definition) .................... 372
Bar (definition) ............................... 372
Changing a wheel .......................... 374
Characteristics .............................. 372
Checking ........................................ 354
Curb weight (definition) ................. 373
Definition of terms ......................... 372
Direction of rotation ...................... 375
Display message ............................ 273
Distribution of the vehicle occu-
pants (definition) ............................ 374
DOT (Department of Transporta-
tion) (definition) ............................. 372
DOT, Tire Identification Number
(TIN) ............................................... 371
GAWR (Gross Axle Weight Rating)
(definition) ..................................... 372
GTW (Gross Trailer Weight) (defi-
nition) ............................................ 373
GVW (Gross Vehicle Weight) (def-
inition) ........................................... 373
GVWR (Gross Vehicle Weight Rat-
ing) (definition) .............................. 373
Important safety notes .................. 354
Increased vehicle weight due to
optional equipment (definition) ...... 372
Information on driving .................... 354
Kilopascal (kPa) (definition) ........... 373
Labeling (overview) ........................ 369
Load bearing index (definition) ...... 374
Load index ..................................... 371
Load index (definition) ................... 373
M+S tires ....................................... 356
Maximum load on a tire (defini-
tion) ............................................... 373
Maximum loaded vehicle weight
(definition) ..................................... 373
Maximum permissible tire pres-
sure (definition) ............................. 373
Maximum tire load ......................... 371
Maximum tire load (definition) ....... 373
MOExtended tires .......................... 356
Optional equipment weight (defi-
nition) ............................................ 374
PSI (pounds per square inch)(de
f-
inition) ........................................... 373
Replacing ....................................... 374 Service life ..................................... 355
Sidewall (definition) ....................... 374
Snow chains .................................. 356
Speed rating (definition) ................ 373
Storing ........................................... 375
Structure and characteristics
(definition) ..................................... 372
Summer tires in winter .................. 356
Temperature .................................. 368
TIN (Tire Identification Number)
(definition) ..................................... 374
Tire bead (definition) ...................... 373
Tire pressure (definition) ................ 373
Tire pressures (recommended) ...... 372
Tire size (data) ............................... 379
Tire size designation, load-bearing
capacity, speed rating .................... 369
Tire tread ....................................... 355
Tire tread (definition) ..................... 373
Total load limit (definition) ............. 374
Traction ......................................... 368
Traction (definition) ....................... 374
Tread wear ..................................... 368
TWR (permissible trailer drawbar
noseweight) (definition) ................. 374
Uniform Tire Quality Grading
Standards ...................................... 367
Uniform Tire Quality Grading
Standards (definition) .................... 372
Wear indicator (definition) ............. 374
Wheel and tire combination ........... 379
Wheel rim (definition) .................... 372
see Flat tire
Tool
see Vehicle tool kit
Top Tether ............................................ 63
Tow-starting
Emergency engine starting ............ 352
Important safety notes .................. 349
Towing a trailer
Axle load, permissible .................... 395
Cleaning the trailer tow hitch ......... 335
Coupling up a trailer ...................... 227
Decoupling a trailer ....................... 229
Driving tips .................................... 225
Important safety notes .................. 224
Installing the ball coupling ............. 226
Lights displ ay me
ssage .................. 260
22Index

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

Protecting the environment
General notes
HEnvironmental note
Daimler's declared policy is one of compre-
hensive environmental protection.
The objectives are for the natural resources
that form the basis of our existence on this
planet to be used sparingly and in a manner
that takes the requirements of both nature
and humanity into account.
You too can help to protect the environment
by operating your vehicle in an environmen-
tally responsible manner.
Fuel consumption and the rate of engine,
transmission, brake and tire wear are affected by these factors:
Roperating conditions of your vehicle
Ryour personal driving style
You can influence both factors. You should
bear the following in mind:
Operating conditions:
Ravoid short trips as these increase fuel con-
sumption.
Ralways make sure that the tire pressures
are correct.
Rdo not carry any unnecessary weight.
Rremove roof racks once you no longer need
them.
Ra regularly serviced vehicle will contribute
to environmental protection. You should
therefore adhere to the service intervals.
Ralways have service work carried out at a
qualified specialist workshop.
Personal driving style:
Rdo not depress the accelerator pedal when
starting the engine.
Rdo not warm up the engine when the vehicle
is stationary.
Rdrive carefully and maintain a safe distance
from the vehicle in front.
Ravoid frequent, sudden acceleration and
braking.
Rchange gear in good time and use each gear
only up to Ôof its maximum engine speed.
Rswitch off the engine in stationary traffic.
Rkeep an eye on the vehicle's fuel consump-
tion.
Environmental concerns and recom-
mendations
Wherever the operating instructions require you
to dispose of materials, first try to regenerate or
re-use them. Observe the relevant environmen-
tal rules and regulations when disposing of
materials. In this way you will help to protect the
environment.
Genuine Mercedes-Benz parts
HEnvironmental note
Daimler AG also supplies reconditioned major
assemblies and parts which are of the same
quality as new parts. They are covered by the
same Limited Warranty entitlements as new
parts.
!Air bags and Emergency Tensioning Devi-
ces, as well as control units and sensors for
these restraint systems, may be installed in
the following areas of your vehicle:
Rdoors
Rdoor pillars
Rdoor sills
Rseats
Rcockpit
Rinstrument cluster
Rcenter console
Do not install accessories such as audio sys-
tems in these areas. Do not carry out repairs or welding. You could impair the operating
efficiency of the restraint systems.
Have aftermarket accessories installed at a
qualified specialist workshop.
You could jeopardize the operating safety of
your vehicle if you use parts, tires and wheels as
well as accessories relevant to safety which
have not been approved by Mercedes-Benz. This
could lead to malfunctions in safety-relevant
Genuine Mercedes-Benz parts27
Introduction
Z

3 Mercedes Drive
Montvale, NJ 07645-0350
In Canada
Customer Relations Department
Mercedes-Benz Canada, Inc.
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C9
Reporting safety defects
USA only:
The following text is reproduced as required of
all manufacturers under Title 49, Code of U.S.
Federal Regulations, Part 575 pursuant to the
National Traffic and Motor Vehicle Safety Act of
1966.
If you believe that your vehicle has a defect
which could cause a crash or could cause injury
or death, you should immediately inform the
National Highway Traffic Safety Administration
(NHTSA) in addition to notifying Mercedes-Benz
USA, LLC.
If NHTSA receives similar complaints, it may
open an investigation, and if it finds that a safety
defect exists in a group of vehicles, it may order
a recall and remedy campaign. However, NHTSA
cannot become involved in individual problems
between you, your dealer, or Mercedes-Benz
USA, LLC.
To contact NHTSA, you may call the Vehicle
Safety Hotline toll-free at 1-888-327-4236
(TTY: 1-800-424-9153); go to http://
www.safercar.gov; or write to: Administrator,
NHTSA, 400 Seventh Street, SW., Washington,
DC 20590.
You can also obtain other information about
motor vehicle safety from
http://www.safercar.gov
Limited Warranty
!
Observe the notes in this Operator's Manual
regarding the correct operation of your vehi-
cle and possible damage to the vehicle. Dam-
age to the vehicle which is caused by violation
of these notes is not covered by the
Mercedes-Benz implied warranty or the new
or used-vehicle warranty.
QR codes for the rescue card
The QR codes are secured in the fuel filler flap
and on the opposite side on the B-pillar. In the
event of an accident, rescue services can use
the QR code to quickly find the appropriate res- cue card for your vehicle. The current rescue
card contains the most important information
about your vehicle in a compact form, e.g. the
routing of the electric cables.
You can find more information at
www.mercedes-benz.de/qr-code .
Data stored in the vehicle
Information from electronic control
units
There are electronic control units installed in
your vehicle. Some of these are necessary for
your vehicle to operate safely, while some offer
support during driving (driver assistance sys-
tems). In addition, your vehicle offers comfort
and entertainment functions that are also made
possible by electronic control units.
Electronic control units contain data storage
systems that can temporarily or permanently
save technical information concerning the vehi-
cle's condition, component stress and mainte-
nance requirements as well as technical events
and malfunctions.
This information generally documents the con-
dition of a component, a module, a system or the
surroundings, for example:
Roperating states of system components (e.g.
fill levels, battery status, tire pressure)
Rstatus messages concerning the vehicle or its
individual components (e.g. wheel rpm/
speed, deceleration, lateral acceleration, indi- cation of whether seat belts are fastened)
Rmalfunctions and defects in important system
components (e.g. lights, brakes)
Rinformation about events leading to vehicle
damage
Rsystem responses in special driving situations
(e.g. air bag deployment, intervention of sta-
bility control systems)
Rambient conditions (e.g. temperature, rain
sensor)
In addition to performing the actual control unit function, these data are used by manufacturers
32Data stored in the vehicle
Introduction

Never leave animals unattended in the vehi-
cle. Always secure animals properly during
the journey, e.g. use a suitable animal trans-
port box.
Driving safety systems
Overview of driving safety systems
In this section, you will find information about
the following driving safety systems:
RABS (Anti-lock Braking System)
(Ypage 66)
RBAS ( Brake Assist System) (Ypage 67)
RActive Brake Assist (Ypage 67)
RESP®(Electronic StabilityProgram)
(Ypage 70)
REBD ( Electronic Brake force Distribution)
(Ypage 72)
RADAPTIVE BRAKE (Ypage 72)
RActive Brake Assist with cross-traffic function (Ypage 72)
RSteering Pilot STEER CONTROL
(Ypage 75)
Important safety notes
If you fail to adapt your driving style or if you are
inattentive, the driving safety systems can nei-
ther reduce the risk of an accident nor overridethe laws of physics. Driving safety systems are
merely aids designed to assist driving. You are
responsible for maintaining the distance to the
vehicle in front, for vehicle speed, for braking in
good time, and for staying in lane. Always adapt
your driving style to suit the prevailing road and
weather conditions and maintain a safe distance
from the vehicle in front. Drive carefully.
The driving safety systems described only work
as effectively as possible when there is ade-
quate contact between the tires and the road
surface. Pay particular attention to the informa-
tion regarding tires, recommended minimum
tire tread depths etc. in the "Wheels and tires"
section (
Ypage 354).
In wintry driving conditions, always use winter
tires (M+S tires) and if necessary, snow chains.
Only in this way will the driving safety systems
described in this section work as effectively as
possible.
ABS (Anti-lock Braking System)
General information
ABS regulates brake pressure in such a way that
the wheels do not lock when you brake. This
allows you to continue steering the vehicle when
braking.
The ! ABS warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out when the engine is running.
ABS works from a speed of about 5 mph
(8 km/h), regardless of road-surface conditions.
ABS works on slippery surfaces, even when you
only brake gently.
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 66).
GWARNING
If ABS is faulty, the wheels could lock when
braking. The steerability and braking charac-
teristics may be severely impaired. Addition-
ally, further driving safety systems are deac-
tivated. There is an increased danger of skid-
ding and accidents.
Drive on carefully. Have ABS checked imme-
diately at a qualified specialist workshop.
When ABS is malfunctioning, other systems,
including driving safety systems, will also
become inoperative. Observe the information
on the ABS warning lamp (
Ypage 282) and dis-
play messages which may be shown in the
instrument cluster (
Ypage 249).
Braking
XIf ABS intervenes: continue to depress the
brake pedal vigorously until the braking sit-
uation is over.
XTo make a full brake application: depress
the brake pedal with full force.
If ABS intervenes when braking, you will feel a
pulsing in the brake pedal.
The pulsating brake pedal can be an indication
of hazardous road conditions, and functions as a reminder to take extra care while driving.
66Driving safety systems
Safety

passenger protection measures (PRE-SAFE®)
are activated simultaneously (Ypage 58).
Situation-dependent braking assis-
tance
General information
iObserve the "Important safety notes" sec-
tion (Ypage 66).
With the help of the radar sensor system, Adap-
tive Brake Assist can detect obstacles that are in the path of your vehicle for an extended period
of time.
If Adaptive Brake Assist detects a risk of colli-
sion with the vehicle in front, it calculates the
brake pressure necessary to avoid a collision. If
you apply the brakes forcefully, situation-
dependent braking assistance adapts to the sit-
uation and automatically increases the brake
pressure to a degree appropriate to the traffic
situation.
Situation-dependent braking assistance pro-
vides braking assistance in hazardous situations
at speeds above 4 mph (7 km/h). It uses radar
sensor technology to assess the traffic situa-
tion.
Situation-dependent braking assistance is capa-
ble of reacting to moving objects that have
already been detected as such at least once
over the period of observation, up to vehicle
speeds of around 155 mph (250 km/h).
Situation-dependent braking assistance reacts
to stationary obstacles up to a speed of approx-
imately 44 mph (70 km/ h).
If situation-dependent braking assistance
demands particularly high brake pressure, pre-
ventative passenger protection measures (PRE-
SAFE
®) are triggered simultaneously
(Ypage 58).
XKeep the brake pedal depressed until the
emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will work normally again if:
Ryou release the brake pedal.
Rthere is no longer any danger of a collision.
Rno obstacle is detected in front of your vehi-
cle.
Situation-dependent braking assistance is then
deactivated.
Important safety notes
iObserve the "Important safety notes" sec-
tion for driving safety systems (Ypage 66).
GWARNING
Adaptive Brake Assist cannot always clearly
identify objects and complex traffic situa-
tions.
In such cases, Adaptive Brake Assist might:
Rintervene unnecessarily
Rnot intervene
There is a risk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake. Terminate the
intervention in a non-critical driving situation.
GWARNING
Adaptive Brake Assist does not react:
Rto people or animals
Rto oncoming vehicles
Rto crossing traffic
Rwhen cornering
As a result, Adaptive Brake Assist may not
intervene in all critical conditions. There is a
risk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake.
Due to the nature of the system, complex but
non-critical driving conditions may also cause
Active Brake Assist to intervene.
Even if Active Brake Assist is not available due to
a malfunction in the radar sensor system, the
brake system is still available with full brake
boosting effect and BAS.
ESP®(Electronic Stability Program)
General notes
iObserve the "Important safety notes" sec-
tion (Ypage 66).
ESP
®monitors driving stability and traction, i.e.
power transmission between the tires and the
road surface.
Driving safety systems69
Safety
Z