2018 MERCEDES-BENZ GLS SUV key

This helps you to avoid overheating the
brakes and wearing them out excessively.
When you take advantage of engine braking, a
drive wheel may not turn for some time, e.g.
on a slippery road surface. This could cause
damage to the drive train. This type of damage is not covered by the Mercedes-Benz war-
ranty.
Do not depress the brake pedal continuously
while the vehicle is in motion, e.g. causing the
brakes to rub by constantly applying light pres-
sure to the pedal. This results in excessive and
premature wear to the brake pads.
Use the left-hand steering wheel paddle shifter
to shift into a lower gear in good time on long
and steep downhill gradients. This is especially
important if the vehicle is laden.
This also applies if you have activated cruise
control, the speed limiter or Distance Pilot
DISTRONIC.
This will use the braking effect of the engine, so
that less braking will be required to maintain the
speed. This relieves the load on the brake sys-
tem and prevents the brakes from overheating
and wearing too quickly.
Heavy and light loads
GWARNING
If you rest your foot on the brake pedal while
driving, the braking system can overheat. This increases the stopping distance and can even
cause the braking system to fail. There is a
risk of an accident.
Never use the brake pedal as a footrest. Never
depress the brake pedal and the accelerator
pedal at the same time.
!Depressing the brake pedal constantly
results in excessive and premature wear to
the brake pads.
If the brakes have been subjected to a heavy
load, do not stop the vehicle immediately. Drive
on for a short while. This allows the airflow to
cool the brakes more quickly.
Wet roads
If you have driven for a long time in heavy rain
without braking, there may be a delayed reac-
tion from the brakes when braking for the first time. This may also occur after the vehicle has
been washed or driven through deep water.
You then have to depress the brake pedal more
firmly. Maintain a greater distance from the
vehicle in front.
After driving on a wet road or having the vehicle
washed, brake firmly while paying attention to
the traffic conditions. This will warm up the
brake discs, thereby drying them more quickly
and protecting them against corrosion.
Limited braking performance on salt-
treated roads
If you drive on salted roads, a layer of salt resi-
due may form on the brake discs and brake
pads. This can result in a significantly longer
braking distance.
RBrake occasionally to remove any possible
salt residue. Make sure that you do not
endanger other road users when doing so.
RCarefully depress the brake pedal and the
beginning and end of a journey.
RMaintain a greater distance to the vehicle
ahead.
Servicing the brakes
!The brake fluid level may be too low, if:
Rif the red brake warning lamp lights up in
the instrument cluster and
Ryou hear a warning tone while the engine is
running
Observe additional warning messages in the
multifunction display.
The brake fluid level may be too low due to
brake pad wear or leaking brake lines.
Have the brake system checked immediately.
Consult a qualified specialist workshop to
arrange this.
!A function or performance test should only
be carried out on a 2-axle dynamometer. If
you wish to operate the vehicle on such a
dynamometer, please consult a qualified spe-
cialist workshop in advance. You could oth-
erwise damage the drive train or the brake
system.
!Because ESP®is an automatic system, the
engine and ignition must be switched off
(SmartKey in position 0or 1or Start/Stop
button in position 0or 1) when the electric
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Mercedes-AMG vehicles:if you have selected
the Sport Plus drive program:
Rthe roll angle is reduced even more signifi-
cantly
Rthe driving is designed for maximum dyna-
mism
Vehicle level
Important safety notes
GWARNING
When the vehicle is being lowered, people
could become trapped if their limbs are
between the vehicle body and the wheels or
underneath the vehicle. There is a risk of
injury.
Make sure no one is underneath the vehicle or
in the immediate vicinity of the wheel arches
when the vehicle is being lowered.
GWARNING
When you drive with the vehicle raised, the
driving characteristics could be impaired by
the vehicle's raised center of gravity. The vehi-
cle could rollover more easily, for example on
a bend. There is a risk of an accident.
Always select as low a vehicle level as possi-
ble and adjust your driving style.
GWARNING
When you drive with the chassis lowered or
raised, the vehicle's braking and driving char-
acteristics can be significantly impaired. You
could also exceed the permissible vehicle
height if the chassis is raised. There is a risk of an accident.
Adjust the vehicle level before pulling away.
GWARNING
Due to the high center of gravity, the vehicle
may start to skid and roll over in the event of
an abrupt steering maneuver and/or when
the vehicle's speed is not adapted to the road
conditions. There is a risk of an accident.
Always adapt your speed and driving style to
the vehicle's driving characteristics and to the
prevailing road and weather conditions.
!When driving on extremely rough terrain,
select a high vehicle level in good time. Make
sure there is always sufficient ground clear-
ance. You will otherwise damage the vehicle.
RUtility vehicles have a significantly higher roll- over rate than other types of vehicles.
Failure to operate this vehicle safely may
result in an accident, rollover of the vehicle,
and severe or fatal injury.
RIn a rollover crash, an unbelted person is sig-
nificantly more likely to die than a person
wearing a seat belt.
You and all vehicle occupants should always
wear your seat belts.
General notes
Only select raised level if this is appropriate for
the road conditions. Otherwise, fuel consump-
tion may increase and handling may be affected.
Make changes to the vehicle level while the
vehicle is in motion. This enables the vehicle to
adjust to the new level as quickly as possible.
The vehicle level may change visibly if you park
the vehicle and the outside temperature
changes. If the temperature drops, the vehicle
level is lower; with an increase in temperature,
the vehicle level rises.
If you unlock the vehicle or open a door, the
vehicle begins to compensate for load discrep-
ancies while still parked. However, for signifi-
cant level changes, such as after the vehicle has
been stationary for a long period, the engine
must be on. For safety reasons, the vehicle is
only lowered when the doors are closed. Low-
ering is interrupted if a door is opened, and it
continues once the door has been closed.
Vehicles with no trailer coupled: below a
speed of 37 mph (60 km/h) you can choose
between the normal and raised vehicle level.
Sel

ect the normal vehicle level for normal road
surfaces and the raised vehicle level for driving
with snow chains or on particularly poor road
surfaces. Your selection remains stored even if
you remove the SmartKey from the ignition lock.
If you try to select raised level at a speed above
37 mph (60 km/h), the Drive More Slowly
message appears in the multifunction display.
190Driving systems
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Vehicles with a trailer coupled:below a speed
of 19 mph (30 km/h), you can choose between
the normal and raised vehicle level.
Setting the raised vehicle level
XStart the engine.
If indicator lamp ;is not lit:
XPress button :.
Indicator lamp ;flashes while the vehicle is
being raised, and lights up continuously as
soon as the vehicle reaches the desired level.
All vehicles (except Mercedes-AMG vehi-
cles): the vehicle is raised by 2.4 in (60 mm)
compared to the normal level.
Mercedes-AMG vehicles: the vehicle is
raised by 2 in (50 mm) compared to the nor-
mal level.
The Vehicle Rising
message appears in the
multifunction display.
The message remains until the raised level is
reached.
If you press the %ora button on the
multifunction steering wheel, the message will
disappear.
The raised vehicle level setting is canceled in the
following cases:
RAll vehicles (except Mercedes-AMG vehi-
cles): you are driving faster than 37 mph
(60 km/h).
RMercedes-AMG vehicles: you are driving
faster than 43 mph (70 km/h).
RMercedes-AMG vehicles: You drive for
approximately 20 seconds between 40 mph
(64 km/h) and 43 mph (70 km/h).
RYou drive with a trailer at speeds greater than
19 mph (30 km/h).
The raised vehicle level remains saved when you
are not driving within these speed ranges.
Setting the normal vehicle level
!Make sure that there is enough ground
clearance when the vehicle is being lowered.
It could otherwise hit the ground, damaging
the underbody.
XStart the engine.
If indicator lamp ;is lit:
XPress button :.
Indicator lamp ;flashes while the vehicle is
being lowered, and goes out as soon as the
desired vehicle level is reached.
Vehicles with no trailer coupled: the vehi-
cle is adjusted to the height of the selected
drive program (
Ypage 147).
Vehicles with a trailer coupled: the ve
hicle
is adjusted to normal level regardless of the
drive program selected (
Ypage 147). The
vehicle remains at the normal level, even if the
drive program is changed.
During the adjustment, the Lowering
mes-
sage appears in the multifunction display.
If you press the %ora button on the
multifunction steering wheel, the message will
disappear.
AMG adaptive sport suspension sys-
tem
General notes
The electronically controlled damping system
works continuously. This improves driving
safety and ride comfort.
The damping is tuned individually to each wheel
and depends on:
Ryour driving style, e.g. sporty
Rthe road surface condition, e.g. bumps
Ryour individual selection of Sport, Sport+ or
Comfort
The suspension setting can be adjusted using
button :in the center console or the DYNAMIC
SELECT controller (
Ypage 147).
Each time you start the engine with the Smart-
Key or the Start/Stop button, Comfort mode is
activated. For further information about starting
the engine, see (
Ypage 141).
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Warning displays
:Segments on the left-hand side of the vehi-
cle
;Segments on the right-hand side of the vehi-cle
=Segments showing operational readiness
The warning displays show the distance
between the sensors and the obstacle. The
warning display for the front area is located on
the dashboard above the center air vents. The
warning display for the rear area is located on
the headliner in the rear compartment.
The warning display for each side of the vehicle
is divided into five yellow and two red segments.
Parking Assist PARKTRONIC is operational if yel-
low segments showing operational readiness =
light up.
The selected transmission position and the
direction in which the vehicle is rolling deter-
mine which warning display is active when the
engine is running.
Transmission posi-
tionWarning display
DFront area activated
R, Nor the vehicle is
rolling backwardsRear and front areas
activated
PNo areas activated
One or more segments light up as the vehicle
approaches an obstacle, depending on the vehi-
cle's distance from the obstacle.
From the:
Rsixth segment onwards, you will hear an inter-
mittent warning tone for approximately two
seconds.
Rseventh segment onwards, you will hear a
warning tone for approximately two seconds.
This indicates that you have now reached the minimum distance.
Deactivating or activating Parking
Assist PARKTRONIC
:Indicator lamp
;Deactivates or activates Parking Assist
PARKTRONIC
If indicator lamp :lights up, Parking Assist
PARKTRONIC is deactivated. Parking Pilot is
then also deactivated.
iParking Assist PARKTRONIC is automati-
cally activated when you turn the SmartKey to
position 2in the ignition lock.
194Driving systems
Driving and parking

The flap closes again when:
Ryou have finished the maneuvering process
Ryou switch off the engine
Ryou open the cargo compartment
Observe the notes on cleaning (
Ypage 334).
For technical reasons, the flap may remain
open briefly after the rear view camera has
been deactivated.
Activating/deactivating the rear view
camera
XTo activate: make sure that the SmartKey is
in position 2in the ignition lock.
XMake sure that the Activation by R gearfunction is selected in the multimedia system
(see the Digital Operator's Manual).
XEngage 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.
XTo switch the function mode for vehicles
with trailer tow hitch: using the controller,
select symbol :for the "Reverse parking"
function or symbol ;for "Coupling up a
trailer".
The symbol of the selected function is high-
lighted.
To deactivate: the rear view camera deacti-
vates if you shift the transmission to jor after
driving forwards a short distance.
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:
Rvery close to the rear bumper
Runder the rear bumper
Rin the area immediately above the tailgate
handle
!Objects not at ground level may appear to
be further away than they actually are, e.g.:
Rthe bumper of a parked vehicle
Rthe drawbar of a trailer
Rthe ball coupling of a trailer tow hitch
Rthe rear section of an HGV
Ra slanted post
Use the guidelines only for orientation.
Approach objects no further than the bottom-
most guideline.
:Yellow guide line at a distance of approx-
imately 13 ft (4.0 m) from the rear of the
vehicle
;White guide line without turning the steering
wheel, vehicle width including the exterior
mirrors (static)
=Yellow guide line for the vehicle width
including the exterior mirrors, for current
steering wheel angle (dynamic)
?Yellow lane marking the course the tires will
take at the current steering wheel angle
(dynamic)
AYellow guide line at a distance of approx-
imately 3 ft (1.0 m) from the rear of the vehi-
cle
BVehicle center axle (marker assistance)
CBumper
DRed guide line at a distance of approximately
12 in (0.30 m) from the rear of the vehicle
The guide lines are shown when the transmis-
sion is in position k.
The distance specifications only apply to
objects that are at ground level.
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Ryellowbrackets wit hthin lines: Parking Assis t
PARKTRONI Cis active
Ryello wbrackets wit hnormal lines: an objec tis
presen tin close range of th evehicl e
Rred line: an objec tis presen tin th eimmediat e
close range of th evehicl e
iThe camera in th erear area is protected
from raindrops and dust by mean sof aflap .
Whe nth ecamera is activated, this flap opens.
The flap closes again in th efollowin gsitua-
tions:
Ryou hav efinished th emaneuverin gprocess
Ryou switch th eengin eoff
Ryou open th ecargo compartmen t
Observ eth enote son cleaning (
Ypage 334).
Fo rtechnical reasons, th eflap may remain
open briefl yafter th ecamera has been deac -
tivated.
Impor tant safety notes
The 360°camera is only an aid and may sho w a
distorted vie wof obstacles, sho wthem incor-
rectl yor no tat all. The 360°camera is no t a
substitut efor attentive driving.
You are always responsibl efor saf emaneuver-
in g and parking. Mak esur ethat there are no
persons, animals or objects in th emaneuverin g
area while maneuverin gand parkin gin parkin g
spaces.
You are always responsibl efor safet yand mus t
continue to pay attention to your immediat e
surroundings when parkin gand maneuvering.
This applies to th earea sbehind ,in fron tof and
beside th evehicle. You could otherwise endan -
ger yourself and others.
The 360° camera will no tfunction or will func-
tion in alimite dmanne rin th efollowin gsitua-
tions:
Rth edoors are open
Rth eexterio rmirror sare folded in
Rth etailgat eis open
Rin heav yrain ,snow or fog
Rat night or in ver ydark places
Rth ecameras are exposed to ver ybright ligh t
Rthearea is lit by fluorescent bulbs or LE D
lighting (the display may flicker)
Rthere is asudden chang ein temperature,
suc has when drivin ginto aheated garage in
winte r
Rthecamera lenses are dirty or covered
Rth evehicl ecomponent sin whic hth ecameras
are inst alled are damaged In this event ,hav e
th ecamera position and setting checke dat a
qualified specialist workshop
Do no tuse th e360° camera under suc hcir -
cumstances. You can otherwise injur eother sor
caus edamage to objects or th evehicle.
Guide lines are always shown at roa dlevel. In
trailer mode, th eguide lines are shown at th e
level of th etrailer coupling.
The field of vision and other function sof th e
camera system may be restricted due to addi-
tional accessories on th erear of th evehicl e(e.g.
license plat eholder, bicycle rack) .
On vehicles wit hheight-adjustable chassis,
dependin gon technical conditions, leavin gth e
standard height can result in :
Rinaccuracies in theguide lines
Rinaccuracies in th edisplay of generated
images (top view)
Activati onconditions
The 360° camera imag ecan be displayed in th e
followin gsituations:
Ryour vehicl eis equipped wit h a360° camera
RtheSmartKey is in ke yposition 2in th eigni-
tion loc k
Rthemultimedia system is switched on
Switching onthe 360° camera
XPress th eØ buttonin th ecenter console
for longer than tw oseconds.
Dependin gon whether transmission position
h ork is selected, th efollowin gappears :
Raspli tscree nwit hto pvie wand th eimag e
from th efron tcamera or
Ra spli tscree nwit hto pvie wand th eimag e
from th erear vie wcamera
or
XPress th eØ buttonin th ecenter console.
The vehicl emen uis displayed.
XSelec t360 °Cameraand press 7to confirm .
Dependin gon whether transmission position
h ork is selected, th efollowin gappears :
Raspli tscree nwit hto pvie wand th eimag e
from th efron tcamera or
Ra spli tscree nwit hto pvie wand th eimag e
from th erear vie wcamera
204Driving systems
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Activating the360°camera using
reverse gear
The 360° camera images can be automatically
displayed by engagin grevers egear .
XMakesur ethat th eSmartKey is in position 2
in th eignition lock.
XMak esur ethat th eActivatio nby Rgea rfunction is selected on th emultimedia system
(see th eDigital Operator' sManual).
XTo sho wthe360° camera image: engage
revers egear .
The multimedia system shows th earea
behind th evehicl ein split-scree nmode. You
see th eto pvie wof th evehicl eand th eimag e
from th erear vie wcamera.
Selecting the split-screens or 180°view
Selecting split-scree nvie w
XTo switch to th elin ewit hth evehicl eicons :
slid e5 thecontroller .
XTo select on eof th evehicl eicons :tur n3
th econtroller .
XTo switch to 180°Vie w:tur n3 thecon-
troller to select 180°Vie w
and press 7to
confirm .
iThe180°Viewoption is only available in th e
followin gviews:
RTop vie wwit hpictur efrom th erear vie w
camera
RTop vie wwit hpictur efrom th efron tcamera
Displays in themu ltimedia system
Important safety notes
The camera system may sho w adistorted vie w
of obstacles, sho wthem incorrectl yor no tat all.
Obstacles are no tshown by th esystem in th e
followin glocations:
Runder th efron tand rear bumpers
Rver yclose to th efron tand rear bumpers
Rin th earea immediately abov eth etailgat e
handle
Rver yclose to th eexterio rmirror s
Rin thetransitional areas between th evarious
cameras in th evirtual to pvie w
!Objects no tat ground level may appear to
be further away than they actually are, e.g. :
Rthebumper of aparked vehicl e
Rthedrawbar of atrailer
Rth eball couplin gof atrailer to whitch
Rtherear section of an HGV
Raslante dpos t
Use th eguidelines only for orientation .
Approach objects no further than th ebottom-
mos tguideline.
Top view wit hpictur e from th erea rview
camera
:Yello wguide lin eat adistanc eof approx -
imately 13 ft (4. 0m) from th erear of th e
vehicl e
;Symbol for th espli tscree nsetting wit hto p
vie wand rear vie wcamera imag e
=Guide lines for th emaximum steering input
?Yello wlan emarking th ecours eth etires will
tak eat th ecurren tsteering whee langle
(dynamic )
AYellowguide lin efor th evehicl ewidt h
includin gth eexterio rmirrors, for curren t
steering whee langle (dynamic )
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:Warning lamp
If Blind Spot Assist is activated, warning lamp :
in the exterior mirrors lights up yellow at speeds
of up to 20 mph (30 km/ h). At speeds above
20 mph (30 km/h), the warning lamp goes out
and Blind Spot Assist is operational.
If a vehicle is detected within the blind spot
monitoring range at speeds above 20 mph
(30 km/h), warning lamp :on the correspond-
ing side lights up red. This warning is always
emitted when a vehicle enters the blind spot
monitoring range from behind or from the side.
When you overtake a vehicle, the warning only
occurs if the difference in speed is less than
7 mph (12 km/h).
If you select the reverse gear, Blind Spot Assist
is not operational.
The brightness of the warning lamps is auto-
matically adapted to the brightness of the sur-
roundings.
Collision warning
If a vehicle is detected in the monitoring range of
Blind Spot Assist and you switch on the corre-
sponding turn signal, a double warning tone
sounds. Red warning lamp :flashes. If the turn
signal remains on, detected vehicles are indica-
ted by the flashing of red warning lamp :.
There are no further warning tones.
Switching on Blind Spot Assist
XMake sure that Blind Spot Assist is activated
in the on-board computer (Ypage 242).
XTurn the SmartKey to position 2in the igni-
tion lock.
Warning lamps :in the e
xterior mirrors light
up red for approximately 1.5 seconds and
then turn yellow.
Towing a trailer
When you attach a trailer, make sure you have
correctly established the electrical connection.
This can be accomplished by checking the trailer
lighting. In this event, Blind Spot Assist is deac-
tivated. The warning lamp lights up yellow in the
exterior mirrors and the Blind Spot Assist
Not Available When Towing a TrailerSee Operator's Manualmessage appears in
the multifunction display.
iYou can deactivate the warning lamps in the
exterior mirrors.
To do so, switch off Blind Spot Assist when:
Rthe SmartKey is in position 2in the igni-
tion lock
Rthe engine is not running
Lane Keeping Assist
General notes
:Lane Keeping Assist camera
Lane Keeping Assist monitors the area in front of
your vehicle with camera :, which is mounted
at the top of the windshield. Lane Keeping Assist
detects lane markings on the road and can warn
you before you leave your lane unintentionally.
This function is available in the range between
40 mph and 120 mph (60 km/h and 200 km/h).
A warning may be given if a front wheel passes
over a lane marking. It will warn you by means of
intermittent vibration in the steering wheel for
up to 1.5 seconds.
Important safety notes
GWARNING
Lane Keeping Assist cannot always clearly
detect lane markings.
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