2019 MERCEDES-BENZ GLS SUV wheel size

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

If ESP
®
detects that the vehicle is deviating from
the direction desired by the driver, one or more wheels are braked to stabilize the vehicle. The
engine output is also modified to keep the vehi-
cle on the desired course within physical limits.
ESP ®
assists the driver when pulling away on
wet or slippery roads. ESP ®
can also stabilize
the vehicle during braking.
ETS/4ETS (Electronic Traction System) 4ETS traction control is part of ESP
®
.
Traction control brakes the drive wheels indi-
vidually if they spin. This enables you to pull
away and accelerate on slippery surfaces, for
example if the road surface is slippery on one
side. In addition, more drive torque is transfer-
red to the wheel or wheels with traction.
Traction control remains active, even if you
deactivate ESP ®
.
In appropriate driving situations, activate the
offroad program:
X Vehicles without the Offroad Engineering
package (Y page 216)
X Vehicles with the Off-Road Engineering pack-
age (Y page 217)
Off-road 4ETS (Electronic Traction Sys-
tem) An ETS system specifically suited to off-road
terrain is activated automatically once the off-
road program is activated:
R Vehicles without the Offroad Engineering
package (Y page 216)
R Vehicles with the Off-Road Engineering pack-
age (Y page 217)
Important safety notes G
WARNING
If ESP ®
is malfunctioning, ESP ®
is unable to
stabilize the vehicle. Additionally, further driv- ing safety systems are deactivated. This
increases the risk of skidding and an accident.
Drive on carefully. Have ESP ®
checked at a
qualified specialist workshop. !
Only operate the vehicle for a maximum of
ten seconds on a brake test dynamometer.
Switch off the ignition.
Application of the brakes by ESP ®
may oth-
erwise destroy the brake system.
! A function or performance test should only
be carried out on a two-axle dynamometer.
Before you operate the vehicle on such a
dynamometer, please consult a qualified
workshop. You could otherwise damage the
drive train or the brake system.
ESP ®
is only deactivated if the 00BBwarning
lamp is lit continuously.
If the 00E5 warning lamp and the 00BBwarning
lamp are lit continuously, ESP ®
is not available
due to a malfunction.
Observe the information on warning lamps
(Y page 279) and display messages which may
be shown in the instrument cluster
(Y page 246).
i Only use wheels with the recommended tire
sizes. Only then will ESP ®
function properly.
Characteristics of ESP ® General information
If the 00E5 ESP warning lamp goes out before
beginning the journey, ESP ®
is automatically
active.
If ESP ®
intervenes, the 00E5ESP®
warning lamp
flashes in the instrument cluster.
If ESP ®
intervenes:
X Do not deactivate ESP ®
under any circum-
stances.
X Only depress the accelerator pedal as far as
necessary when pulling away.
X Adapt your driving style to suit the prevailing
road and weather conditions.
ECO start/stop function
The ECO start/stop function switches the
engine off automatically when the vehicle stops moving. The engine starts automatically when
the driver wants to pull away again. ESP ®
remains in its previously selected status, e.g. if
ESP ®
was deactivated before the engine was
automatically switched off. 70
Driving safety systemsSafety

Position of the steering wheel when the
EASY-ENTRY/EXIT feature is active The steering wheel swings up when you:
R remove the SmartKey from the ignition lock.
R open the driver's door and KEYLESS-GO is in
position 0047.
R open the driver's door and the SmartKey is in
position 0092or0047 in the ignition lock.
i The steering wheel only moves up if it has
not already reached the upper stop.
Position of the steering wheel for driv-
ing The steering wheel is moved to the last selected
position when:
R the driver's door is closed
R you insert the SmartKey into the ignition lock
or
R you press the Start/Stop button once on vehi-
cles with KEYLESS-GO
When you close the driver's door with the igni-
tion switched on, the steering wheel is also
automatically moved to the previously set posi- tion.
The last position of the steering column is stored
when you:
R switch the ignition off
R save the setting with the memory function
(Y page 113).
Crash-responsive EASY-EXIT feature If the crash-responsive EASY-EXIT feature is trig-
gered in an accident, the steering column will
move upwards when the driver's door is opened.
This occurs irrespective of the position of the
SmartKey in the ignition lock. This makes it eas- ier to exit the vehicle and rescue the occupants.
The crash-responsive EASY-EXIT feature is only
operational if the EASY-EXIT/ENTRY feature is
activated in the on-board computer
(Y page 241). Mirrors
Rear-view mirror
X
Anti-glare mode: flick anti-glare lever 0043for-
wards or back. Exterior mirrors
Adjusting the exterior mirrors G
WARNING
You could lose control of your vehicle if you do the following while driving:
R adjust the driver's seat, head restraint,
steering wheel or mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the engine. G
WARNING
The exterior mirror on the front-passenger
side reduces the size of the image. Visible
objects are actually closer than they appear.
This means that you could misjudge the dis-
tance from road users traveling behind, e.g.
when changing lane. There is a risk of an acci-
dent.
For this reason, always make sure of the
actual distance from the road users traveling
behind by glancing over your shoulder. 110
MirrorsSeats, steering wheel and mirrors

R
that are parallel to the direction of travel and
at least 39.5 in (1.0 m)longer than your vehi-
cle
R that are at right angles to the direction of
travel and at least 39.5 in (1.0 m) wider than
your vehicle
i Note that Active Parking Assist cannot
measure the size of a parking space if it is at
right angles to the direction of travel. You will
need to judge whether your vehicle will fit into the parking space.
When driving at speeds below 19 mph
(30 km/h), you will see parking symbol 0044as a
status indicator in the instrument cluster. When
a parking space has been detected, an arrow
towards the right or the left also appears. By
default, Active Parking Assist only displays park- ing spaces on the front-passenger side. Parking spaces on the driver's side are displayed as
soon as the turn signal on the driver's side is
activated. When parking on the driver's side,
this must remain activated until you confirm the
use of Active Parking Assist by pressing the
0076 button on the multifunction steering
wheel. The system automatically determines
whether the parking space is parallel or at right
angles to the direction of travel.
A parking space is displayed while you are driv- ing past it, and until you are approximately 50 ft
(15 m) away from it.
Parking G
WARNING
If you leave the driver's seat when the vehicle is being braked only by the Active Parking
Assist, it could roll away in the following sit-
uations:
R if there is a malfunction in the system or in
the voltage supply
R if the electrical system in the engine com-
partment, the battery or the fuses have
been tampered with
R if the battery is disconnected
R if the vehicle is accelerated, e.g. by a vehi-
cle occupant
There is a risk of an accident.
Before leaving the vehicle, always secure it
against rolling away. i
If Parking Assist PARKTRONIC detects
obstacles, Active Parking Assist will brake
automatically whilst the vehicle is parking.
You are responsible for braking in good time.
X Stop the vehicle when the parking space sym-
bol shows the desired parking space in the
instrument cluster.
X Shift the transmission to position 005E.
The Start
Start Parking Parking Assist?
Assist?Yes:
Yes:OK
OKNo:
No:
0038 message will appear on the multifunc-
tion display.
X To cancel the procedure: press the0038
button on the multifunction steering wheel or pull away.
or
X To park using Active Parking Assist: press
the 0076 button on the multifunction steering
wheel.
The Parking
Parking Assist AssistActive
ActiveAccelerate
Accelerate
and Brake Observe Surroundings
and Brake Observe Surroundings mes-
sage will appear on the multifunction display.
X Let go of the multifunction steering wheel.
X Back up the vehicle, being ready to brake at all
times. When backing up, drive at a speed
below approximately 6 mph (10 km/h). Oth-
erwise, Active Parking Assist will be canceled.
Active Parking Assist brakes the vehicle to a
standstill when the vehicle approaches the
rear border of the parking space.
Maneuvering may be required in tight parking
spaces.
The Parking Assist Active Select D Parking Assist Active Select D
Observe Surroundings
Observe Surroundings message will appear
on the multifunction display.
X Shift the transmission to position 005Bwhile
the vehicle is stationary.
Active Parking Assist immediately steers in
the other direction.
The Parking Parking Assist
AssistActive
ActiveAccelerate
Accelerate
and Brake Observe Surroundings
and Brake Observe Surroundings mes-
sage will appear on the multifunction display.
i You will achieve the best results by waiting
for the steering procedure to complete before
pulling away.
X Drive forwards and be ready to brake at all
times.
Active Parking Assist brakes the vehicle to a
standstill.
The Parking Assist Active Select R Parking Assist Active Select R
Observe Surroundings
Observe Surroundings message will appear
on the multifunction display. 194
Driving systemsDriving and parking

Stowage areas
Loading guidelines
G
WARNING
If objects, luggage or loads are not secured or not secured sufficiently, they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is a risk of injury, particu-
larly in the event of sudden braking or a sud-
den change in direction.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey. G
DANGER
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the tail- gate is open while the engine is running, espe-cially if the vehicle is in motion. There is a risk of poisoning.
Always switch off the engine before opening
the tailgate. Never drive with the tailgate
open. G
WARNING
The exhaust tail pipe and tail pipe trim can
become very hot. If you come into contact
with these parts of the vehicle, you could burn
yourself. There is a risk of burns.
Always be particularly careful and supervise
children closely around the exhaust pipe and
the exhaust pipe trims. Allow these compo-
nents to cool down before touching them.
The gross vehicle weight (GVW) is the vehicle
weight including fuel, vehicle tool kit, spare
wheel, installed accessories, vehicle occupants and luggage/cargo.
Do not exceed the load limit or permitted grossvehicle weight rating (GVWR) for your vehicle.
The gross load limit and the GVWR are specified
on the vehicle identification plate on the B-pillar
of the driver's door (Y page 362).
The load must also be distributed so that the
weight on each axle never exceeds the gross
axle weight rating (GAWR) for the front and rear axles. The specifications for GVWR and GAWR
are on the vehicle identification plate on the B-
pillar of the driver's door (Y
page 362).
Observe the notes on loading the vehicle
(Y page 362).
The handling characteristics of a laden vehicle
are dependent on the distribution of the load
within the vehicle. For this reason, you should
observe the following notes when transporting a
load:
R Never exceed the maximum permissible
gross vehicle mass or the gross axle weight
rating for the vehicle (including occupants).
R The cargo compartment is the preferred place
to carry objects.
R Position heavy loads as far forward as possi-
ble and as low down in the cargo compart-
ment as possible.
R The load must not protrude above the upper
edge of the seat backrests.
R Always place the load against the rear or front
seat backrests. Make sure that the seat
backrests are securely locked into place.
R Always place the load behind unoccupied
seats if possible.
R Use the cargo tie-down rings and the parcel
nets to transport loads and luggage.
R Use cargo tie-down rings and fastening mate-
rials appropriate for the weight and size of the load.
R Secure the load with sufficiently strong and
wear-resistant tie-downs. Pad sharp edges for
protection. Stowage spaces
Important safety notes G
WARNING
If you transport objects in the vehicle interior and these are not adequately secured, they
could slip or be flung around and thereby
strike vehicle occupants. In addition, cup
holders, open stowage spaces and mobile
phone brackets may not always be able to
hold the objects placed in them in the event of an accident. There is a risk of injury, particu-
larly in the event of sharp braking or sudden
changes of direction. Stowage areas
295Stowage and features
Z

X
Stop the vehicle on solid, non-slippery and
level ground, as far away as possible from
traffic.
X Switch on the hazard warning lamps.
X Secure the vehicle against rolling away
(Y page 158).
X If possible, bring the front wheels into the
straight-ahead position.
X Vehicles with the AIRMATIC package:
make sure that the normal vehicle level is
selected (Y page 187).
X Vehicles with the Off-Road Engineering
package:
make sure that the normal level is
selected (Y page 180).
X Switch off the engine.
X Vehicles without KEYLESS-GO: remove the
SmartKey from the ignition lock.
X Vehicles with KEYLESS-GO: open the driv-
er's door.
The vehicle electronics are now in position
0092. This means no SmartKey is in the ignition
lock.
X Vehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(Y page 140).
X Make sure that the passengers are not endan-
gered as they do so. Make sure that no one is
near the danger area while a wheel is being
changed. Anyone who is not directly assisting in the wheel change should, for example,
stand behind the barrier.
X Get out of the vehicle. Pay attention to traffic
conditions when doing so.
X Close the driver's door.
X Unload heavy luggage.
i Only operate the tire inflation compressor
using a 12 V socket, even if the ignition is
turned off (Y page 307).
An emergency cut-out ensures that the on-
board voltage does not drop too low. If the on-
board voltage is too low, the power to the
sockets is automatically cut. This ensures
that there is sufficient power to start the
engine. MOExtended tires (tires with run-flat
properties)
General notes With MOExtended tires (tires with run flat char-
acteristics), you can continue to drive your vehi- cle even if there is a total loss of pressure in one
or more tires. The affected tire must not show
any clearly visible damage.
You can recognize an MOExtended tire by the
MOExtended marking which appears on the
sidewall of the tire. You will find this marking
next to the tire size designation, the load-bear-
ing capacity and the speed index (Y page 367).
MOExtended tires may only be used in conjunc-
tion with an active tire pressure loss warning
system or with an active tire pressure monitor.
If a pressure loss warning message appears in the multifunction display:
R observe the instructions in the display mes-
sages (Y page 268).
R check the tire for damage
R if driving on, observe the following notes
The driving distance possible in run-flat mode is approximately 50 miles (80 km) when the vehi-
cle is partially laden and approximately 18 miles
(30 km) when the vehicle is fully laden.
In addition to the vehicle load, the driving dis-
tance possible depends upon:
R Vehicle speed
R Road condition
R Outside temperature
The driving distance possible in run-flat mode
may be reduced by extreme driving conditions
or maneuvers, or it can be increased through a
moderate style of driving.
The driving distance possible in run-flat mode is counted from the moment the tire pressure loss warning appears in the multifunction display.
You must not exceed a maximum permissible
speed of 50 mph (80 km/h).
i When replacing one or all tires, please
observe the following specifications for your
vehicle's tires:
R Size
R Type and
R The "MOExtended" mark
If a tire has gone flat and cannot be replaced with an MOExtended tire, a standard tire may 336
Flat tireBreakdown assistance

be used as a temporary measure. Make sure
that you use the proper size and type (sum-
mer or winter tire).
i Vehicles equipped with MOExtended tires
are not equipped with a TIREFIT kit at the fac- tory. It is therefore recommended that you
additionally equip your vehicle with a TIREFIT
kit if you mount tires that do not feature run- flat characteristics, e.g. winter tires. A TIREFIT kit may be obtained from a qualified specialist
workshop.
Important safety notes G
WARNING
When you drive in emergency mode, the han- dling characteristics will be impaired. e.g.
when cornering, when accelerating heavily
and when braking. There is a risk of an acci-
dent.
Do not exceed the maximum permissible
speed for MOExtended tires. Avoid any abrupt
steering and driving maneuver as well as driv-
ing over obstacles (curbs, pot holes, off-road).
This applies, in particular, to laden vehicles.
Stop driving in emergency mode if you notice:
R banging noises
R vehicle vibration
R smoke and the smell of rubber
R continual ESP ®
intervention
R cracks in the tire sidewall
After driving in emergency mode, have the
rims checked by a qualified specialist work-
shop to determine whether they can continue
to be used. The defective tire must be
replaced in every case. TIREFIT kit
Important safety notes TIREFIT is a tire sealant.
You can use TIREFIT to seal punctures of up to
0.16 in (4 mm), particularly those in the tire
tread. You can use TIREFIT at outside tempera-
tures down to 00F84 ‡ (00F820 †). G
WARNING
In the following situations, the tire sealant is
unable to provide sufficient breakdown assis- tance, as it is unable to seal the tire properly:
R there are cuts or punctures in the tire larger
than those mentioned above.
R the wheel rim is damaged.
R you have driven at very low tire pressures or
on a flat tire.
There is a risk of an accident.
Do not drive the vehicle. Contact a qualified
specialist workshop. G
WARNING
The tire sealant is harmful and causes irrita-
tion. It must not come into contact with your
skin, eyes or clothing or be swallowed. Do not inhale TIREFIT fumes. Keep tire sealant away
from children. There is a risk of injury.
If you come into contact with the tire sealant,
observe the following:
R Rinse off the tire sealant from your skin
immediately with water.
R If the tire sealant comes into contact with
your eyes, immediately rinse them thor-
oughly with clean water.
R If tire sealant is swallowed, immediately
rinse your mouth out thoroughly and drink
plenty of water. Do not induce vomiting,
and seek medical attention immediately.
R Immediately change out of clothing which
has come into contact with tire sealant.
R If an allergic reaction occurs, seek medical
attention immediately.
! Do not operate the tire inflation compressor
for longer than eight minutes at a time without a break. It may otherwise overheat.
The tire inflation compressor can be operatedagain once it has cooled down.
Comply with the manufacturer’s safety instruc-
tions on the sticker on the tire inflation com-
pressor. Flat tire
337Breakdown assistance Z