tire pressure MERCEDES-BENZ GLS 2019 Owners Manual

Stowage and features
......................295
Stowage areas .....................................2 95
Features .............................................. 303 Maintenance and care
......................321
Engine compartment ........................... 321
ASSYST PLUS ...................................... 325
Care ..................................................... 326 Breakdown assistance
.....................334
Where will I find...? .............................. 334
Flat tire ................................................ 335
Battery (vehicle) .................................. 340
Jump-starting ....................................... 343
Towing and tow-starting ..................... .346
Fuses ................................................... 349 Wheels and tires
............................... 352
Important safety notes ........................ 352
Operation ............................................ 352
Winter operation .................................. 354
Tire pressure ....................................... 355
Loading the vehicle .............................. 362
All about wheels and tires ................... 366
Changing a wheel ................................ 372
Wheel and tire combinations .............. .377
Emergency spare wheel ....................... 378 Technical data
................................... 382
Information regarding technical data ... 382
Vehicle electronics .............................. 382
Identification plates ............................ .383
Service products and filling capaci-
ties ...................................................... 384
Vehicle data ......................................... 389
Vehicle data for off-road driving .......... 390
Trailer tow hitch ................................... 392 Contents
3

Tailgate
Display message ............................ 271
Emergency unlocking ....................... 88
Important safety notes .................... 84
Limiting the opening angle ............... 88
Opening dimensions ...................... 389
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 gaug e....................................... 37
Technical data
Capacities ...................................... 384
Drawbar load (maximum) ............... 392
Information .................................... 382
Tires/wheels ................................. 377
Trailer load s................................... 392
Vehicle data ................................... 389
Telephone
Accepting a call (multifunction
steering wheel) .............................. 237
Authorizing a mobile phone (con-
necting) ......................................... 291
Authorizing a mobile phone via the device manager (connecting) ......... 292
Connecting a mobile phone
(device manager )........................... 292
Connecting a mobile phone (gen-
eral information) ............................ 291
Display message ............................ 272
Menu (on-board computer) ............ 237
Number from the phone book ........ 237
Redialing ........................................ 237
Rejecting/ending a call ................. 237
see also Digital Operator's Man-
ua l.................................................. 287
Temperature
Coolant (display in the instrument
cluster) .......................................... 231
Coolant (on-board computer,
Mercedes-AMG vehicles) ............... 242
Engine oil (on-board computer,
Mercedes-AMG vehicles) ............... 242 Outside temperature ...................... 230
Setting (climate control
)................ 132
Transmission oil (on-board com-
puter, Mercedes-AMG vehicles) ..... 242
Through-loading feature ................... 298
Timing (RACETIMER) ......................... 243
Tire pressure
Calling up (on-board computer) ..... 359
Checking manually ........................ 358
Display message ............................ 268
Maximum ....................................... 358
Not reached (TIREFIT) .................... 339
Note s............................................. 357
Reached (TIREFIT) .......................... 339
Recommended ............................... 355
Tire pressure loss warning system
General notes ................................ 358
Important safety notes .................. 359
Restarting ...................................... 359
Tire pressure monitor
Checking the tire pressure elec-
tronically ........................................ 361
Function/note s............................. 359
General notes ................................ 359
Important safety notes .................. 360
Radio type approval for the tire
pressure monitor ........................... 362
Restarting ...................................... 362
Warning lamp ................................. 286
Warning message .......................... 361
Tire pressure table ............................ 356
TIREFIT kit
Important safety notes .................. 337
Storage location ............................ 335
Tire pressure not reached .............. 339
Tire pressure reached .................... 339
Using ............................................. 338
Tires
Aspect ratio (definition) ................. 372
Average weight of the vehicle
occupants (definition) .................... 370
Bar (definition) ............................... 370
Changing a whee l.......................... 372
Characteristics .............................. 370
Checking ........................................ 352
Curb weight (definition) ................. 371
Definition of terms ......................... 370
Direction of rotation ...................... 373 Index
21

Display message ............................ 268
Distribution of the vehicle occu-
pants (definition) ............................ 372
DOT (Department of Transporta-
tion) (definition) ............................. 370
DOT, Tire Identification Number
(TIN) ............................................... 370
GAWR (Gross Axle Weight Rating)
(definition) .................................... .371
GTW (Gross Trailer Weight) (defi-
nition) ............................................ 371
GVW (Gross Vehicle Weight) (def-
inition) .......................................... .371
GVWR (Gross Vehicle Weight Rat-
ing) (definition) .............................. 371
Important safety notes .................. 352
Increased vehicle weight due to
optional equipment (definition) ...... 371
Information on driving .................... 352
Kilopascal (kPa) (definition) ........... 371
Labeling (overview )........................ 367
Load bearing index (definition) ...... 372
Load index ..................................... 369
Load index (definition) ................... 371
M+S tire s....................................... 354
Maximum load on a tire (defini-
tion) ............................................... 371
Maximum loaded vehicle weight
(definition) ..................................... 371
Maximum permissible tire pres-
sure (definition) ............................. 371
Maximum tire load ......................... 369
Maximum tire load (definition) ....... 371
MOExtended tire s.......................... 353
Optional equipment weight (defi-
nition) ............................................ 372
PSI (pounds per square inch) (def-
inition) ........................................... 372
Replacing ....................................... 372
Service life ..................................... 353
Sidewall (definition) ....................... 372
Snow chains .................................. 354
Speed rating (definition) ................ 371
Storing ........................................... 373
Structure and characteristics
(definition) ..................................... 370
Summer tires in winter .................. 354
Temperature .................................. 366 TIN (Tire Identification Number)
(definition) ..................................... 372
Tire bead (definition) ...................... 372
Tire pressure (definition) ................ 372
Tire pressures (recommended) ...... 371
Tire size (data) ............................... 377
Tire size designation, load-bearing
capacity, speed rating .................... 367
Tire tread ....................................... 353
Tire tread (definition) ..................... 372
Total load limit (definition) ............. 372
Traction ......................................... 366
Traction (definition) ....................... 372
Tread wear ..................................... 366
TWR (permissible trailer drawbar
noseweight) (definition) ................. 372
Uniform Tire Quality Grading
Standards ...................................... 366
Uniform Tire Quality Grading
Standards (definition) .................... 370
Wear indicator (definition) ............. 372
Wheel and tire combination ........... 377
Wheel rim (definition) .................... 371
see Flat tire
Tool
see Vehicle tool kit
Top Tether ............................................ 63
Tow-starting
Emergency engine starting ............ 349
Important safety notes .................. 346
Towing
Permitted towing methods ............ 347
Towing a trailer
Axle load, permissibl e.................... 392
Cleaning the trailer tow hitch ......... 331
Coupling up a traile r...................... 224
Decoupling a trailer ....................... 226
Driving tip s.................................... 222
Important safety notes .................. 221
Installing the ball coupling ............. 223
Lights display message .................. 257
Mounting dimensions .................... 392
Parking Assist PARKTRONIC .......... 189
Power supply ................................. 227
Pulling away with a traile r.............. 143
Removing the ball coupling ............ 226
Trailer load s................................... 392 22
Index

Towing away ..................................3
46
Transporting .................................. 348
Unlocking (in an emergency) ........... 84
Unlocking (SmartKey) ..................... .77
Vehicle data ................................... 389
Vehicle battery
see Battery (vehicle)
Vehicle data ....................................... 389
Vehicle data (off-road driving)
Approach/departure angle ............ 391
Maximum gradient climbing abil-
ity .................................................. 392
Maximum water depth ................... 390
Vehicle dimensions ........................... 389
Vehicle emergency locking ................ 84
Vehicle identification number
see VIN
Vehicle identification plate .............. 383
Vehicle level
AIRMATIC ...................................... 187
Vehicle level (display message) ....... 261
Vehicle tool kit .................................. 335
Video
Operating the DVD .........................2 36
see also Digital Operator's Man-
ual ................................................. .287
VIN ...................................................... 383
Seat ............................................... 384
Type plate ...................................... 383 W
Warning and indicator lamps ABS ................................................ 277
Brakes .......................................... .276
Coolant .......................................... 283
Distance warning ........................... 285
Engine diagnostics ......................... 282
ESP ®
.............................................. 279
ESP ®
OFF ....................................... 280
Fuel tank ........................................ 282
Overview .......................................... 37
Parking brake ................................ 282
PASSENGER AIR BAG ..................... .45
Reserve fuel .................................. .282
Restraint system ............................ 282
Seat belt ........................................ 275
Tire pressure monitor .................... 286 Warranty
.............................................. 28
Washer fluid
Display message ............................ 273
Weather display (COMAND)
see also Digital Operator's Man-
ual.................................................. 287
Wheel and tire combinations
Tires ............................................... 377
Wheel bolt tightening torque ........... 377
Wheel chock ...................................... 374
Wheels
Changing a whee l.......................... 372
Checking ........................................ 352
Cleaning ......................................... 329
Emergency spare wheel ................. 378
Important safety notes .................. 352
Information on driving .................... 352
Interchanging/changing ................ 372
Mounting a new whee l................... 376
Mounting a whee l.......................... 373
Overview ........................................ 352
Removing a whee l.......................... 375
Snow chains .................................. 354
Storing ........................................... 373
Tightening torque ........................... 377
Wheel size/tire size ....................... 377
Window curtain air bag
Display message ............................ 254
Operation ......................................... 51
Windows
see Side windows
Windshield
Defrosting ...................................... 133
Infrared reflective .......................... 320
Windshield washer fluid
see Windshield washer system
Windshield washer system
Adding washer fluid ....................... 324
Important safety notes .................. 388
Windshield wipers
Problem (malfunction) ................... 124
Rear window wipe r........................ 123
Replacing the wiper blades ............ 123
Switching on/of f........................... 122
Winter driving
Slippery road surfaces ................... 165
Winter operation
Overview ........................................ 354 24
Index

Protecting the environment
General notes
H
Environmental 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:
R operating conditions of your vehicle
R your personal driving style
You can influence both factors. You should
bear the following in mind:
Operating conditions:
R avoid short trips as these increase fuel con-
sumption.
R always make sure that the tire pressures
are correct.
R do not carry any unnecessary weight.
R remove roof racks once you no longer need
them.
R a regularly serviced vehicle will contribute
to environmental protection. You should
therefore adhere to the service intervals.
R always have service work carried out at a
qualified specialist workshop.
Personal driving style:
R do not depress the accelerator pedal when
starting the engine.
R do not warm up the engine when the vehicle
is stationary.
R drive carefully and maintain a safe distance
from the vehicle in front.
R avoid frequent, sudden acceleration and
braking. R
change gear in good time and use each gear
only up to 00C3of its maximum engine speed.
R switch off the engine in stationary traffic.
R keep 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 orre-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
H
Environmental 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:
R doors
R door pillars
R door sills
R seats
R cockpit
R instrument cluster
R center 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 parts
27Introduction Z

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, such as:
R Operating states of system components (e.g.
fill levels, battery status, tire pressure)
R Status messages concerning the vehicle or its
individual components (e.g. wheel rpm/
speed, deceleration, lateral acceleration, indi- cation of whether seat belts are fastened)
R Malfunctions and defects in important system
components (e.g. lights, brakes)
R Information about events leading to vehicle
damage
R System responses in special driving situa-
tions (e.g. air bag deployment, intervention of
stability control systems)
R Ambient conditions (e.g. temperature, rain
sensor)
In addition to performing the actual control unit
function, this data is used by manufacturers to
detect and rectify malfunctions and to optimize vehicle functions. Most of this data is volatile
and processed only in the vehicle itself. Only a
small part of the data is stored in event or mal-
function memories.
When you use services, the technical data from
the vehicle can be read out by service network
employees (e.g. workshops, manufacturers) or
third parties (e.g. breakdown services). Services
can include repair services, maintenance pro-
cesses, warranty cases and quality assurance
measures. The data are read out via the con-
nection for the diagnostics connection in the
vehicle, which is required by law. The relevant
offices in the service network or third parties
collect, process and use the data. This data
documents the vehicle's technical states, is
used to help in finding malfunctions and improv-
ing quality and is sent to the manufacturer
where necessary. In addition, the manufacturer is subject to product liability. The manufacturerneeds technical data from vehicles for this pur-
pose.
Malfunction memories in the vehicle can be
reset by a service center during repair or service
work.
You can incorporate data into the vehicle's com- fort and infotainment functions yourself as part
of the selected equipment. These include, for example:
R Multimedia data such as music, films or pho-
tos for playback in an integrated multimedia
system
R Address book data for use in conjunction with
an integrated hands-free system or an inte-
grated navigation system
R Navigation destinations that have been
entered
R Data about using Internet services
This data can be saved locally in the vehicle or
located on a device that you have connected to
the vehicle (e.g. smartphone, USB memory stick or MP3 player). If this data is saved in the vehi-
cle, you can delete it at any time. This data is
sent to third parties only at your request, par-
ticularly when you use online services in accord- ance with the settings that you have selected.
You can save and change comfort settings/
customizations in the vehicle at any time.
Depending on the equipment in question, these can include:
R Seat and steering wheel position settings
R Suspension and climate control settings
R Custom settings such as interior lighting
If your vehicle is equipped appropriately, you
can connect your smartphone or another mobile end device to the vehicle. You can control this by
means of the control elements integrated in the vehicle. The smartphone's picture and sound
can be output via the multimedia system. Spe-
cific items of information are also sent to your
smartphone.
Depending on the type of integration, this can
include:
R General vehicle information
R Position data
This allows the use of selected smartphone
apps, such as navigation or music player apps.
There is no additional interaction between the
smartphone and the vehicle, particularly active
access to vehicle data. The type of additional
data processing is determined by the provider of the app being used. Whether you can configure
settings for it and, if so, which ones, depends on
the app and your smartphone's operating sys-
tem. Data stored in the vehicle
33Introduction Z

Instrument cluster
Function Page
0043
Speedometer with segments 230
Warning and indicator lamps:
00BB
ESP®
OFF 279
0025
ABS 277
Brakes 276
0027
(USA only) 004D
(Canada only) 0058
Low-beam headlamps 116
0060
Parking lamps 116
00E5
ESP® 279
0057
High-beam headlamps 116
Electric parking brake (red) 282
0049
(USA only) 0024
(Canada only) 0024
Electric parking brake
(yellow) 282
00BA
Distance warning 285
0044
003E003D
Turn signals 116 Function Page
0087
Multifunction display 232
0085
Tachometer 230
Warning and indicator lamps:
005E
Rear fog lamp 116
00B9
Check Engine 282
0077
Tire pressure monitor 286
0075
Restraint system 45
00E9
Seat belts 275
0083
Coolant temperature gauge 231
Warning and indicator lamps:
00AC
Coolant 283
0084
Fuel level indicator
Warning and indicator lamps:
00B6
Reserve fuel with fuel
filler flap location indicator
(right-hand side) 282
006B
Instrument cluster lighting 230
i
Information on displaying the outside tem-
perature in the multifunction display can be found under "Outside temperature display"
(Y
page 230). Instrument cluster
37At a glance

Never leave animals unattended in the vehi-
cle.
Always secure animals properly when driving, for instance with a suitable pet carrier. Driving safety systems
Overview of driving safety systems
In this section, you will find information about
the following driving safety systems:
R ABS (Anti-lock BrakingSystem)
(Y page 66)
R BAS ( Brake Assist System) (Y page 67)
R Active Brake Assist (Y page 67)
R ESP ®
(Electronic StabilityProgram)
(Y page 70)
R EBD ( Electronic Brake force Distribution)
(Y page 72)
R ADAPTIVE BRAKE (Y page 72)
R Active Brake Assist with cross-traffic function
(Y page 72)
R Active Steering Assist STEER CONTROL
(Y page 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 override the 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 (Y page 352).
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 0025 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 i
Observe the "Important safety notes" sec-
tion (Y page 66). G
WARNING
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 (Y page 277) and dis-
play messages which may be shown in the
instrument cluster (Y page 246).
Brakes X
If ABS intervenes: continue to depress the
brake pedal vigorously until the braking sit-
uation is over.
X To 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. 66
Driving safety systemsSafety

passenger protection measures (PRE-SAFE
®
)
are activated simultaneously (Y page 58).
Situation-dependent braking assis-
tance General information
i Observe the "Important safety notes" sec-
tion (Y page 66).
With the help of the radar sensor system, Active
Brake Assist can detect obstacles that are in the path of your vehicle for an extended period of
time.
If Active Brake Assist detects a risk of collision
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 situation 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
(Y page 58).
X Keep the brake pedal depressed until the
emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will work normally again if: R you release the brake pedal
R there is no longer any danger of a collision
R no obstacle is detected in front of your vehi-
cle.
Situation-dependent braking assistance is then
deactivated. Important safety notes
i Observe the "Important safety notes" sec-
tion for driving safety systems (Y page 66). G
WARNING
Adaptive Brake Assist cannot always clearly
identify objects and complex traffic situa-
tions.
In such cases, Adaptive Brake Assist might:
R intervene unnecessarily
R not 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. G
WARNING
Adaptive Brake Assist does not react:
R to people or animals
R to oncoming vehicles
R to crossing traffic
R when 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 i
Observe the "Important safety notes" sec-
tion (Y page 66).
ESP ®
monitors driving stability and traction, i.e.
power transmission between the tires and the
road surface. Driving safety systems
69Safety Z

G
WARNING
Fuels are toxic and harmful to health. There is a risk of injury.
You must avoid fuels coming into contact with
skin, eyes and clothes or being swallowed.
Do not inhale the fuel vapors. Keep children
away from fuels.
Keep doors and windows closed during the
refueling process.
If you or others come into contact with fuel,
observe the following points:
R Immediately rinse the fuel off your skin with
soap and water.
R If you get fuel into your eyes, immediately
rinse your eyes throughly with clean water.
Seek medical attention immediately.
R Seek medical attention immediately if fuel
has been swallowed. Do not induce vomit-
ing.
R Immediately change out of clothing which
has come into contact with fuel. G
WARNING
Electrostatic charging can lead to the creation
of sparks and ignite fuel vapor. There is a risk of fire and explosion.
Touch the metallic body of the vehicle before
you open the fuel filler cap or handle the pump nozzle. Any possible electrostatic charge
present will in this way be depleted.
Do not get into the vehicle again during the
refueling process. Otherwise, electrostatic
charge could build up again.
! Do not use diesel to refuel vehicles with a
gasoline engine. Do not switch on the ignition if you accidentally refuel with the wrong fuel.
Otherwise, the fuel will enter the fuel system. Even small amounts of the wrong fuel could
result in damage to the fuel system and the
engine. Notify a qualified specialist workshop
and have the fuel tank and fuel lines drained
completely.
! Overfilling the fuel tank could damage the
fuel system. !
Take care not to spill any fuel on painted
surfaces. You could otherwise damage the
paintwork.
! Use a filter when adding fuel from a fuel can.
The fuel lines and/or the fuel injection system could otherwise be blocked by particles fromthe fuel can.
Do not get into the vehicle again during the refu-
eling process. Otherwise, electrostatic charge
could build up again.
If you overfill the fuel tank, fuel could spray out
when the fuel pump nozzle is removed.
For further information on fuel and fuel quality
(Y page 385). Refueling
General information Pay attention to the important safety notes
(Y
page 155).
The fuel filler flap is unlocked or locked auto-
matically when you unlock or lock the vehicle
with the SmartKey or using KEYLESS-GO.
The position of the fuel filler cap is displayed
00B6 in the instrument cluster. The arrow next
to the filling pump indicates the side of the vehi- cle.
Opening the fuel filler flap 0043
To open the fuel filler flap
0044 To insert the fuel filler cap
0087 Instruction label for fuel type to be refueled
0085 Tire pressure table 156
RefuelingDriving and parking