width MERCEDES-BENZ GLS 2019 Owners Manual

Displays in the instrument cluster
Displays in the speedometer
Active Distance Assist DISTRONIC displays on the
speedometer (example)
When Active Distance Assist DISTRONIC is acti-
vated, one or two segments 0044in the set speed
range light up.
If Active Distance Assist DISTRONIC detects a
vehicle in front, segments 0044from speed of the
vehicle in front 0087to stored speed 0043light up.
i For design reasons, the speed displayed on
the speedometer may differ slightly from the
speed set for Active Distance Assist
DISTRONIC.
Assistant display when Active Distance
Assist DISTRONIC is deactivated 0043
Vehicle in front, if detected
0044 Distance indicator, current distance to the
vehicle in front
0087 Specified minimum distance to the vehicle
in front; adjustable
0085 Your vehicle
X Select the Assistance Graphic Assistance Graphic function
using the on-board computer (Y page 238).Assistant display when Active Distance
Assist DISTRONIC is activated
0043
Vehicle in front, if detected
0044 Specified minimum distance to the vehicle
in front; adjustable
0087 Your vehicle
0085 Active Distance Assist DISTRONIC active
X Select the Assistance Graphic Assistance Graphic function
using the on-board computer (Y page 238).
You will see the stored speed for approximately five seconds when you activate Active Distance
Assist DISTRONIC.
Tips for driving with Active Distance
Assist DISTRONIC General notes
Pay particular attention in the following traffic
situations:
R Cornering, entering and exiting a bend: the
ability of Active Distance Assist DISTRONIC to detect vehicles on bends is limited. Your vehi-cle may brake unexpectedly or late.
R Vehicles driving in a staggered formation:
Active Distance Assist DISTRONIC may not
detect vehicles that are not driving in the mid-
dle of their lanes. The distance to the vehiclein front will be too short.
R Other vehicles changing lane: Active Distance
Assist DISTRONIC has not detected the vehi-
cle cutting in yet. The distance to this vehicle
will be too short.
R Narrow vehicles: Active Distance Assist
DISTRONIC has not yet detected the vehicle
in front on the edge of the road because of its
narrow width. The distance to the vehicle in
front will be too short.
R Obstacles and stationary vehicles: Active Dis-
tance Assist DISTRONIC does not brake for 178
Driving syste
msDriving and parking

R
if the camera lens is dirty or obstructed.
Observe the notes on cleaning
(Y page 330)
R if the rear of your vehicle is damaged. In this
event, have the camera position and setting
checked at a qualified specialist workshop
The field of vision and other functions of the rear
view camera may be restricted due to additional
accessories on the rear of the vehicle (e.g.
license plate holder, bicycle rack).
On vehicles with height-adjustable chassis,
leaving the standard height can result in inac-
curacies in the guide lines, depending on tech-
nical conditions.
i The contrast of the display may be affected
by the sudden presence of sunlight or other
light sources, e.g. when exiting a garage. Pay
particular attention in this situation.
i If usability is severely restricted, e.g. due to
pixel errors, have the display repaired or
replaced.
i The rear view camera is protected from rain-
drops and dust by means of a flap. When the
rear view camera is activated, this flap opens.
The flap closes again when:
R you have finished the maneuvering process
R you switch off the engine
R you open the cargo compartment
Observe the notes on cleaning (Y page 330).
For technical reasons, the flap may remain
open briefly after the rear view camera has
been deactivated.
Activating/deactivating the rear view
camera X
To activate: make sure that the SmartKey is
in position 0048in the ignition lock.
X Make sure that the Activation by R gear
Activation by R gear
function is selected on the multimedia system (see the Digital Operator's Manual).
X Engage reverse gear.
The rear view camera flap opens. The multi-
media system shows the area behind the vehi-
cle with guide lines.
The image from the rear view camera is avail- able throughout the maneuvering process.
X To switch the function mode for vehicles
with trailer tow hitch: using the controller,
select symbol 0043for the "Reverse parking" function or symbol
0044for "Coupling up a
trailer".
The symbol of the selected function is high-
lighted.
To deactivate: shift the transmission to posi-
tion 005Dor drive forwards.
Displays in the multimedia system The rear view camera may show a distorted view
of obstacles, show them incorrectly or not at all.
The rear view camera does not show objects in
the following positions:
R very close to the rear bumper
R under the rear bumper
R in the area immediately above the tailgate
handle
! Objects not at ground level may appear to
be further away than they actually are, e.g.:
R the bumper of a parked vehicle
R the drawbar of a trailer
R the ball coupling of a trailer tow hitch
R the rear section of an HGV
R a slanted post
Use the guidelines only for orientation.
Approach objects no further than the bottom-
most guideline. 0043
Yellow guide line at a distance of approx-
imately 13 ft (4.0 m) from the rear area
0044 White guide lines without steering input,
vehicle width including the exterior mirrors
(static)
0087 Yellow guide lines for vehicle width including
the exterior mirrors, for current steering
input (dynamic)
0085 Yellow lanes marking the course the tires
will take at the current steering wheel angle
(dynamic) Driving systems
197Driving and parking Z

0083
Yellow guide line at a distance of approx-
imately 3 ft (1.0 m) from the rear area
0084 Vehicle center axle (marker assistance)
006B Bumper
006C Red guide line at a distance of approximately
12 in (0.30 m) from the rear area
The guide lines are shown when the transmis-
sion is in position 005E.
The distance specifications only apply to
objects that are at ground level. 0043
Front warning display
0044 Additional measurement operational readi-
ness indicator for Parking Assist
PARKTRONIC
0087 Rear warning display
Vehicles with Parking Assist PARKTRONIC:
when Parking Assist PARKTRONIC is opera-
tional (Y page 190), additional measurement
operational readiness indicator 0044appears in
the multimedia system. If the Parking Assist
PARKTRONIC warning displays are active or
light up, warning displays 0043and 0087are also
active or light up correspondingly in the multi-
media system. "Reverse parking" function Backing up straight into a parking space
without steering input
0043
White guide line without steering input –
vehicle width including the exterior mirrors
(static)
0044 Yellow guide lines for vehicle width including
the exterior mirrors, for current steering
input (dynamic)
0087 Yellow guide line at a distance of approx-
imately 3 ft (1.0 m) from the rear area
0085 Red guide line at a distance of approximately
12 in (0.30 m) from the rear area
X Make sure that the rear view camera is
switched on (Y page 197).
The lane and the guide lines are shown.
X With the help of white guide line 0043, check
whether the vehicle will fit into the parking
space.
X Using white guide line 0043as a guide, carefully
back up until you reach the end position.
Red guide line 0085is then at the end of the
parking space. The vehicle is almost parallel
in the parking space. 198
Driving systemsDriving and parking

Reverse perpendicular parking with steer-
ing input 0043
Parking space marking
0044 Yellow guide line for the vehicle width
including the exterior mirrors, at the current
steering wheel angle (dynamic)
X After driving past the parking space, stop the
vehicle, paying attention to road and traffic
conditions.
X Make sure that the rear view camera is
switched on (Y page 197).
The lane and the guide lines are shown.
X While the vehicle is at a standstill, turn the
steering wheel in the direction of the parking space until yellow guide line 0044reaches park-
ing space marking 0043.
X Maintain the steering input and reverse care-
fully. 0043
Yellow guide line for the vehicle width
including the exterior mirrors, at the current
steering wheel angle (dynamic)
X Stop the vehicle when it is almost exactly in
front of the parking space.
The white lane should be as close to parallel
with the parking space marking as possible. 0043
White guide line at the current steering input
0044 Parking space marking
X Turn the steering wheel to the center position
while the vehicle is stationary. 0043
Red guide line at a distance of approximately
12 in (0.30 m) fromthe rear area
0044 White guide line without steering input
0087 End of parking space
X Back up carefully until you have reached the
final position.
Red guide line 0043is then at end of parking
space 0087. The vehicle is almost parallel in the
parking space. Driving systems
199Driving and parking Z

R
the rear section of an HGV
R a slanted post
Use the guidelines only for orientation.
Approach objects no further than the bottom- most guideline.
Top view with picture from the rear view
camera 0043
Yellow guide line at a distance of approx-
imately 13 ft (4.0 m) fromthe rear of the
vehicle
0044 Symbol for the split screen setting with top
view and rear view camera image
0087 Guide lines for the maximum steering input
0085 Yellow lane marking the course the tires will
take at the current steering wheel angle
(dynamic)
0083 Yellow guide line for the vehicle width
including the exterior mirrors, for current
steering wheel angle (dynamic) 0084
Vehicle center axle (marker assistance)
006B Yellow guide line at a distance of approx-
imately 3 ft (1.0 m) fromthe rear of the vehi-
cle
006C Bumper
006D Red guide line at a distance of approximately
12 in (0.30 m) fromthe rear of the vehicle The guide lines are shown when the transmis-
sion is in position
005E.
The distance specifications only apply to
objects that are at ground level.
Top view with picture from the front cam-
era 0043
Symbol for the split screen setting with top
view and front camera image
0044 Yellow guide line at a distance of approx-
imately 13 ft (4.0 m) fromthe front of the
vehicle
0087 Yellow guide line for the vehicle width
including the exterior mirrors, for current
steering wheel angle (dynamic)
0085 Yellow lane marking the course the tires will
take at the current steering wheel angle
(dynamic)
0083 Red guide line at a distance of approximately
12 in (0.30 m) fromthe front of the vehicle
0084 Yellow guide line at a distance of approx-
imately 3 ft (1.0 m) fromthe front of the
vehicle
Top view and enlarged rear view 0043
Symbol for the split screen setting with top
view and rear view camera image enlarged
0044 Red guide line at a distance of approximately
12 in (0.30 m)from the rear of the vehicle Driving systems
203Driving and parking Z

This view assists you in estimating the distance
to the vehicle behind you.
i This setting can also be selected as an
enlarged front view.
Top view with image from the camera in
the exterior mirrors 0043
Symbol for setting the top view with image
from the forward camera in the exterior mir-
rors
0044 Yellow guide line for the vehicle width
including the exterior mirrors (right side of
vehicle)
0087 Yellow guide line for the vehicle width
including the exterior mirrors (left side of
vehicle)
i You can also select the camera setting in the
exterior mirrors for the rear-facing view.
Top view with trailer view 0043
Symbol for the trailer view setting
0044 Trailer drawbar marker assistant
0087 Ball coupling
0085 Red guide line at a distance of approximately
0.30 m from the ball coupling
The lines are shown at the level of the trailer
coupling. i
For technical reasons, the ball coupling of
the trailer tow hitch is only partially visible in
the multimedia system display.
180° view 0043
Symbol for the full screen setting with rear
view camera image
0044 Your vehicle
0087 Warning displays for Parking Assist
PARKTRONIC
i 180° view can also be selected as front
view.
Select this view when you are driving out of an
exit and the view of crossing traffic is restricted,
for example.
Exiting 360° camera display mode The 360° camera display is stopped:
R
when you select transmission position 005D, or
R when you are driving at moderate speeds
The previous display appears in the multimedia
system. You can also switch the display by
selecting the 0039symbol in the display and
pressing the controller to confirm. ATTENTION ASSIST
General notes ATTENTION ASSIST helps you during long,
monotonous journeys, such as on highways. It is
active in the 37 mph (60 km/h) to 125 mph
(200 km/h) range. If ATTENTION ASSIST
detects typical indicators of fatigue or increas-
ing lapses in concentration on the part of the
driver, it suggests taking a break. 204
Driving systemsDriving and parking

X
Slide bolt 0083into the hole in the ball coupling
recess and the ball coupling to the stop. X
Secure the bolt using spring cotter 0084.X
Check the ball coupling, bolt and spring cotter
for correct installation.
If the ball coupling cannot be correctly mounted,
remove the ball coupling. Under these circum-
stances, the ball coupling must not be used for
trailer towing.
Have the entire trailer tow hitch checked at a
qualified specialist workshop. Coupling up a trailer
! Do not connect the trailer's brake system (if
featured) to the hydraulic brake system of the towing vehicle, as the latter is equipped with
an anti-lock brake system. Doing so will result
in a loss of function of the brake systems of
both the vehicle and the trailer.
X Shift the transmission to position 005D.
X Apply the vehicle's electric parking brake.
X Start the engine.
X Vehicles with AIRMATIC Package: select
normal level and the Comfortdrive program.
X Switch off the engine.
X Close the doors and tailgate.
X Couple up the trailer.
X Establish the electrical connection between
the vehicle and the trailer.
X Check that the trailer lighting system is work-
ing.
X Push the combination switch upwards/down-
wards and check whether the corresponding
turn signal on the trailer flashes.
A trailer that is connected is recognized only
when the electrical connection is established
correctly and when the lighting system is work-
ing properly. The function of other systems also depends on this, for example:
R ESP ®
R Parking Assist PARKTRONIC
R Active Parking Assist
R Parking Package with rear view camera
R Active Blind Spot Assist
R Active Lane Keeping Assist
i Vehicles with the AIRMATIC Package: if you
couple up a trailer, the vehicle always remains
at normal level. When coupling up a trailer,
please observe the following:
R If the normal level has not been set man-
ually, the vehicle is automatically lowered
to normal level. This is the case if a speed of
5 mph (8 km/h) is reached.
R The Sport drive program is not available.
These restrictions apply to all accessories
powered through a connection to the trailer
power socket of your vehicle, e.g. a bicycle
carrier.
Observe the maximum permissible trailer
dimensions (width and length). 224
Towing a trailerDriving and parking

Driving abroad
An extensive Mercedes-Benz Service network is
also available in other countries. You can obtain further information from any authorized
Mercedes-Benz Center. Care
General notes
H
Environmental note
Dispose of empty packaging and cleaning
cloths in an environmentally responsible man- ner.
! When cleaning your car, do not use:
R dry, coarse or hard cloths
R abrasive cleaning agents
R solvents
R cleaning agents containing solvents
Do not scrub.
Do not touch the surfaces and films with hard
objects, e.g. rings or ice scrapers. Otherwise,
you may scratch or damage the surfaces and films.
! Do not park your vehicle for a long period of
time directly after cleaning, particularly after
cleaning the wheel rim with wheel cleaner.
Wheel cleaner can lead to the increased cor-
rosion of the brake discs and pads. Therefore,
drive for a few minutes after cleaning. By
heating up the brakes, the brake discs and
pads dry. The vehicle can then be parked for a long period of time.
Regular care of your vehicle is a condition for
retaining the quality in the long term.
Use care products and cleaning agents recom-
mended and approved by Mercedes-Benz. Washing the vehicle and cleaning the
paintwork
Automatic car wash G
WARNING
Braking efficiency is reduced after washing
the vehicle. There is a risk of an accident. After the vehicle has been washed, brake
carefully while paying attention to the traffic
conditions until full braking power is restored.
! Before driving into an automatic car wash,
make sure that it is suitable for the dimen-
sions of the vehicle. In particular, make sure
that:
R there is enough ground clearance between
the vehicle underbody and the guide rails of the automatic car wash.
R the clearance width of the automatic car
wash is sufficient, particularly the width of
the guide rails.
R you enter the automatic car wash straight
and in the center of the guide rails in order
to avoid damaging the tires or wheel rims.
Fold in the exterior mirrors before the vehicle
is washed. The exterior mirrors could other-
wise be damaged.
! When Active Distance Assist DISTRONIC or
the HOLD function is activated, the vehicle
brakes automatically in certain situations.
To avoid damage to the vehicle, deactivate
Active Distance Assist DISTRONIC and the
HOLD function in the following or similar sit-
uations:
R when towing the vehicle
R in the car wash
! Never clean your vehicle in a Touchless
Automatic Car Wash as these use special
cleaning agents. These cleaning agents can
damage the paintwork or plastic parts.
! Make sure that:
R the side windows and the sliding sunroof
are fully closed.
R that the blower of the ventilation/heating
system is switched off (OFF button has
been pressed).
R the windshield wiper switch is at position
005A.
The vehicle may otherwise be damaged.
! In car washes with a towing mechanism,
make sure that the automatic transmission is
in transmission position 005C; otherwise, the
vehicle could be damaged.
R Vehicles with a SmartKey:
Do not remove the SmartKey from the igni-
tion lock. Do not open the driver's door or 326
CareMaintenance and care

R
tears in the tires
R bulges on tires
R deformation or severe corrosion on wheels
Regularly check the tire tread depth and the
condition of the tread across the whole width of
all tires (Y page 353). If necessary, turn the
front wheels to full lock in order to inspect the
inner side of the tire surface.
All wheels must have a valve cap to protect the
valve against dirt and moisture. Do not mount
anything onto the valve other than the standard valve cap or other valve caps approved by
Mercedes-Benz for your vehicle. Do not use any other valve caps or systems, e.g. tire pressure
monitoring systems.
Regularly check the pressure of all the tires par- ticularly prior to long trips. Adjust the tire pres-
sure as necessary (Y page 355).
Observe the notes on the emergency spare
wheel (Y page 378).
The service life of tires depends, among other
things, on the following factors:
R Driving style
R Tire pressure
R Distance covered Notes on tire tread
G
WARNING
If there is insufficient tire tread, the tire trac-
tion decreases. The tire tread is no longer able to dissipate water. This increases the risk of
hydroplaning when the road surface is wet,
particularly when the vehicle's speed is not
adapted to the road conditions. There is a risk
of an accident.
When the tire pressure is too high or too low,
tires may wear differently at different points
on the tire tread. Therefore, regularly check
the tire tread depth and the condition of the
tread across the whole width of all tires.
Minimum tire tread depth on:
R Summer tires: 00CEin (3 mm)
R M+S tires: 00CFin (4 mm)
For safety reasons, have the tires replaced
before they reach the legally prescribed min-
imum tire tread depth. Marking
0043shows where the bar indicator
(arrow) for tread wear is integrated into the tire
tread.
Treadwear indicators (TWI) are required by law. Six indicators are positioned on the tire tread.
They are visible once a tread depth of approx-
imately 00CDin (1.6 mm) has been reached. If this
is the case, the tire is so worn that it must be
replaced. Selecting, mounting and replacing
tires
R Only mount tires and wheels of the same type
and make.
Exception: it is permissible to mount a differ-
ent type or make in the event of a flat tire.
Observe here the "MOExtended tires (tires
with run-flat characteristics)" section
(Y page 336).
R Only mount tires of the correct size onto the
wheels.
R Break in new tires at moderate speeds for the
first 60 miles (100 km). The new tires only
reach their full performance after this dis-
tance.
R Do not drive with tires which have too little
tread depth. This significantly reduces the
traction on wet roads (hydroplaning).
R Replace the tires after six years at the latest,
regardless of wear.
Observe the notes on the emergency spare
wheel (Y page 378). MOExtended tires (tires with run-flat
properties)
With MOExtended tires (tires with run flat char- acteristics), you can continue to drive your vehi- Operation
353Wheels and tires Z

All about wheels and tires
Uniform Tire Quality Grading Stand-
ards
Overview of Tire Quality Grading Stand- ards Uniform Tire Quality Grading Standards are U.S.
government specifications. Their purpose is to
provide drivers with uniform reliable information on tire performance data. Tire manufacturers
have to grade tires using three performance fac-
tors: 0043tread wear grade, 0044traction grade and
0087 temperature grade. These regulations do not
apply to Canada. Nevertheless, all tires sold in
North America are provided with the corre-
sponding quality grading markings on the side-
wall of the tire.
Quality grades can be found, where applicable,
on the tire sidewall between tread shoulder and
maximum section width.
Example:
R Treadwear grade: 200
R Traction grade: AA
R Temperature grade: A
All passenger car tires must conform to the stat-
utory safety requirements in addition to these
grades.
i The actual values for tires are vehicle-spe-
cific and may deviate from the values in the
illustration.
Treadwear The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified U.S.
government course. For example, a tire graded 150 would wear one and one-half times as well
on the government course as a tire graded 100.
The relative performance of tires depends upon the actual conditions of their use, however, and
may depart significantly from the norm due to
variations in driving habits, service practices
and differences in road characteristics and cli-
mate.
Traction G
WARNING
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration, cor- nering, hydroplaning, or peak traction char-
acteristics.
! Avoid wheelspin. This can lead to damage to
the drive train.
The traction grades – from highest to lowest –
are AA, A, B and C. Those grades represent the
tire's ability to stop on wet pavement as meas-
ured under controlled conditions on specified
government test surfaces of asphalt and con-
crete. A tire marked C may have poor traction
performance.
The safe speed on a wet, snow covered or icy
road is always lower than on dry road surfaces.
You should pay special attention to road condi-
tions when temperatures are around freezing
point.
Mercedes-Benz recommends a minimum tread
depth of 00CFin (4 mm) on all four winter tires.
Observe the legally required minimum tire tread
depth (Y page 353). Winter tires can reduce the
braking distance on snow-covered surfaces in
comparison with summer tires. The braking dis-
tance is still much further than on surfaces that
are not icy or covered with snow. Take appro-
priate care when driving.
Further information on winter tires (M+S tires)
(Y page 354).
Temperature G
WARNING
The temperature grade for this tire is estab-
lished for a tire that is properly inflated and
not overloaded. Excessive speed, underinfla-
tion, or excessive loading, either separately or 366
All about wheels and tiresWheels and ti
res