2018 MERCEDES-BENZ GLC trailer

Object detection only works in wide-angle view.
To ensure that you can use the function, it must
be switched on in the multimedia system (see
the Digital Operator's Manual).
360° Camera
General notes The 360° camera is a system consisting of four
cameras.
The system processes images from the follow-
ing cameras: R
Rear view camera R
Front camera R
Two side cameras in the exterior mirrors
The cameras cover the immediate surroundings
of the vehicle. The system supports you, for
example when parking or if vision is restricted at
an exit.
You can show images from the 360° camera in
full-screen mode or in seven different split-
screen views on the multimedia system. A split-
screen view also includes a top view of the vehi-
cle. This view is calculated from the data sup-
plied by the installed cameras (virtual camera).
The seven split-screen views are: R
Top view and picture from the rear view cam-
era (130° viewing angle) R
Top view and image from the front camera
(130° viewing angle without displaying the
maximum steering wheel angle) R
Top view and enlarged rear view R
Top view and enlarged front view R
Top view and trailer view (vehicles with trailer
tow hitch) R
Top view and images from the rear-facing side
cameras (rear wheel view) R
Top view and images from the forward-facing
side cameras (front wheel view)
When the function is active and you shift the
transmission from [ or ^ to \\ , the guide
lines on the multimedia system are hidden.
When you shift between transmission positions
[ and ^ , you see the previously selected front
or rear view. Distances measured by Parking Assist
PARKTRONIC will also be optically displayed: R
in split screen view as red or yellow brackets
around the vehicle icon in the top view, or R
at the bottom right as red or yellow brackets
around the vehicle symbol in full-screen mode
The line thickness and color of the brackets
show how far the vehicle is from an object. R
yellow brackets with thin lines: Parking Assist
PARKTRONIC is active R
yellow brackets with normal lines: an object is
present in close range of the vehicle R
red line: an object is present in the immediate
close range of the vehicle
Important safety notes The 360°camera is only an aid and may show a
distorted view of obstacles, show them incor-
rectly or not at all. The 360°camera is not a
substitute for attentive driving.
You are always responsible for safe maneuver-
ing and parking. Make sure that there are no
persons, animals or objects in the maneuvering
area while maneuvering and parking in parking
spaces.
You are always responsible for safety, and must
always pay attention to your surroundings when
parking and maneuvering. This applies to the
areas behind, in front of and beside the vehicle.
You could otherwise endanger yourself and oth-
ers.
The 360° camera will not function or will func-
tion in a limited manner: R
if the doors are open R
if the exterior mirrors are folded in R
if the tailgate is open R
in heavy rain, snow or fog R
at night or in very dark places R
if the cameras are exposed to very bright light R
if the area is lit by fluorescent bulbs or LED
lighting (the display may flicker) R
if the camera lenses fog up, e.g. when driving
into a heated garage in winter, causing a rapid
change in temperature R
if the camera lenses are dirty or covered R
if the vehicle components in which the cam-
eras are installed are damaged. In this case,
have the camera position and setting checked
at a qualified specialist workshopDriving systems 199
Driving and parking Z

Do not use the 360° camera in this case. You
can otherwise injure others or cause damage to
objects or the vehicle.
The guide lines in the multimedia system display
show the distances to your vehicle. The distan-
ces only apply to road level.
In trailer mode, the guide lines are shown at the
level of the trailer tow hitch.
The camera in the rear area is protected by
means of a flap. This flap opens when the 360°
camera is activated. Observe the notes on
cleaning ( Y
page 328). For technical reasons,
the flap may remain open briefly after the 360°
camera has been deactivated.
The field of vision and other functions of the
camera system may be restricted due to addi-
tional attachments (e.g. license plate holder,
rear bicycle carrier).
On vehicles with height-adjustable chassis,
depending on technical conditions, leaving the
standard height can result in: R
inaccuracies in the guide lines R
inaccuracies in the display of generated
images (top view)
Activation conditions The image from the 360° camera appears if: R
the multimedia system is switched on R
the 360° Camera function is switched on
If you are driving faster than at a moderate
speed and you turn on the 360° camera, a warn-
ing message appears.
The warning message disappears if: R
you are again driving at a moderate speed The
360° camera is then activated R
the message is confirmed with the 8 but-
ton Switching the 360° camera on and off
using the button X
To switch on: press button C .
Depending on whether transmission position
[ or ^ is selected, the following appears: R
a split screen with top view and the image
from the front camera or R
a split screen with top view and the image
from the rear view camera X
To switch off: press button C .
Activating the 360° camera using
reverse gear The 360° camera images can be automatically
displayed by engaging reverse gear. X
Make sure that the Activation by R gear
function is selected on the multimedia system
(see the Digital Operator's Manual). X
To show the 360° camera image: engage
reverse gear.
The multimedia system shows the area
behind the vehicle in split-screen mode. You
see the top view of the vehicle and the image
from the rear view camera.
You cannot stop the 360° camera display if
reverse gear is engaged.
Selecting the split-screen view or full
screen mode
Switching between split screen views: X
To switch to the line with the vehicle icons:
slide 5 the controller. X
To select a vehicle icon: turn the controller.
Switching to full screen mode: X
Turn and press 180° View with the controller.200
Driving system s
Dr ivi ng an d parking

The full screen option is only available in the fol-
lowing views: R
Top view with picture from the rear view cam-
era R
Top view with picture from the front camera
Multimedia display Important safety notes The camera system may show a distorted view
of obstacles, show them incorrectly or not at all.
Obstacles are not shown by the system in the
following locations: R
under the front and rear bumpers R
very close to the front and rear bumpers R
in the area immediately above the tailgate
handle R
very close to the exterior mirrors R
in the transitional areas between the various
cameras in the virtual top view
! 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.
Top view with picture from the rear view
camera
C
Yellow guide line at a distance of approx-
imately 13 ft (4.0 m) from the rear of the
vehicle
D
Symbol for the split screen setting with top
view and rear view camera image

Warning lamp
C
Warning lamp
Blind Spot Assist is not active at speeds below
approximately 20 mph (30 km/h). Vehicles in
the monitoring range are then not indicated.
If a vehicle is detected within the blind spot
monitoring range at speeds above 20 mph
(30 km/h), warning lamp C 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. The red warning lamp flashes on the
relevant exterior mirror. If the turn signal
remains on, detected vehicles are indicated by
the flashing of the red warning lamp on the exte-
rior mirror. There are no further warning tones.
Activating Blind Spot Assist X
Make sure that Blind Spot Assist is activated
in the on-board computer ( Y
page 232).X
Turn the SmartKey to position H in the igni-
tion lock.
The red warning lamps on the exterior mirrors
light up until the engine is started. Display in the assistance graphic
When Blind Spot Assist is activated, gray radar
waves propagating backwards appear next to
the vehicle in the assistance display in the mul-
tifunction display ( Y
page 231). Above a speed
of 20 mph (30 km/h), the color of the radar
waves in the assistance graphic changes to
green C . Blind Spot Assist is then ready for use.
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 Blind Spot Assist Not Avail‐
able When Towing a Trailer See Opera‐
tor's Manual message appears in the multi-
function display.
Lane Keeping Assist
General notes
Lane Keeping Assist monitors the area in front of
your vehicle by means of multifunction cam-
era C which is attached behind the top of the
windshield. Active Lane Keeping Assist detects
lane markings on the road and can warn you
before you leave your lane unintentionally.Driving systems 207
Driving and parking Z

Lane-correcting brake application If you leave your lane, under certain circumstan-
ces the vehicle will brake briefly on one side.
This is meant to assist you in bringing the vehicle
back to the original lane.
G WARNING
A lane-correcting brake application cannot
always bring the vehicle back into the original
lane. There is a risk of an accident.
Always steer, brake or accelerate yourself,
especially if Active Lane Keeping Assist warns
you or makes a lane-correcting brake appli-
cation.
If a lane-correcting brake application occurs,
display C appears in the multifunction display.
The brake application also slightly reduces vehi-
cle speed.
A lane-correcting brake application can be made
after driving over a lane marking recognized as
being solid or broken. Before this, a warning
must be given by means of intermittent vibration
in the steering wheel. In addition, a lane with
lane markings on both sides must have been
detected.
In the case of a broken lane marking being
detected, a lane-correcting brake application
can only be made if a vehicle has been detected
in the adjacent lane. Oncoming vehicles, over-
taking vehicles and vehicles in adjacent lanes
can be detected.
A further lane-correcting brake application can
only occur after your vehicle has returned to the
original lane.
No lane-correcting brake application occurs if: R
you clearly and actively steer, brake or accel-
erate. R
you cut the corner on a sharp bend R
you have switched on the turn signal R
a driving safety system intervenes, e.g. ESP ®
,
PRE-SAFE ®
Brake or Active Blind Spot Assist R
you have adopted a sporty driving style with
high cornering speeds or high rates of accel-
eration R
ESP ®
is switched off R
the transmission is not in position [ .R
on vehicles with a trailer tow hitch, the elec-
trical connection to the trailer has been cor-
rect ly established R
a loss of tire pressure or a defective tire has
been detected and displayed. R
an obstacle has been detected in the lane in
which you are driving
Active Lane Keeping Assist may not detect other
road users or traffic situations. An inappropriate
brake application may be interrupted at any time
if you: R
steer slightly in the opposite direction R
switch on the turn signal R
you brake or accelerate significantly.
A lane-correcting brake application is interrup-
ted automatically if: R
a driving safety system intervenes, e.g. ESP ®
,
PRE-SAFE ®
Brake or Active Blind Spot Assist R
lane markings are no longer detected
Activating/deactivating Active Lane
Keeping Assist
X
To activate: press button D .
Indicator lamp C lights up. The Lane Keep‐
ing Assist On message appears in the mul-
tifunction display. If all conditions have been
satisfied, a warning or steering intervention
may be made.
If you drive at speeds above 40 mph
(60 km/h) and lane markings are detected,Driving systems 213
Driving and parking Z

the lines on the assistance graphic display are
shown in green ( Y
page 231). Active Lane
Keeping Assist is ready for use. X
To deactivate: press button D .
Indicator lamp C goes out. The Active Lane
Keeping Assist is deactivated. The Lane
Keeping Assist Off message appears in
the multifunction display.
Selecting Standard or Adaptive setting X
In the DriveAssist menu on the on-board
computer, select the Active Lane Keep‐
ing Assist function ( Y
page 233).X
Select setting Standard or Adaptive .
When Standard is selected, no warning vibra-
tion occurs if: R
you switch on the turn signals. In this event,
the warnings are suppressed for a certain
period of time R
a driving safety system intervenes, such as
ABS, BAS or ESP ®
When Adaptive is selected, no warning vibra-
tion occurs if: R
you switch on the turn signals. In this event,
the warnings are suppressed for a certain
period of time. R
a driving safety system intervenes, e.g.
ABS, BAS or ESP ®
R
you accelerate hard, e.g. kickdown. R
you brake hard R
you steer actively, e.g. swerve to avoid an
obstacle or change lanes quickly R
you cut the corner on a sharp bend
To ensure that you are warned only when nec-
essary and in good time if you cross the lane
markings, the system detects certain conditions
and warns you accordingly.
The warning vibration occurs earlier if: R
you approach the outer lane marking on a
bend R
the road has very wide lanes, e.g. a freeway R
the system detects solid lane markings
The warning vibration occurs later if: R
the road has narrow lanes R
you cut the corner on a bend
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.
Towing a trailer
Important safety notes
G WARNING
Installing an unsuitable ball coupling may
result in overloading of the trailer tow hitch
and the rear axle. This applies especially if the
ball coupling in question is longer or angled
differently. This could seriously impair the
driving characteristics and the trailer can
come loose. There is a risk of an accident.
You should only ever install a ball coupling
that has the permissible dimensions and that
is designed to meet your trailer-towing
requirements. Do not modify the ball coupling
or the trailer tow hitch.
You will find the values approved by the manu-
facturer on the vehicle identification plates and
those for the towing vehicle under "Technical
data" ( Y
page 384).
G WARNING
When the vehicle/trailer combination begins
to lurch, you could lose control of it. The vehi-
cle/trailer combination could even rollover.
There is a risk of an accident.
On no account should you attempt to
straighten up the vehicle/trailer combination
by increasing the speed. Reduce vehicle
speed and do not countersteer. Apply the
brake as necessary.
! If you have a trailer tow hitch retrofitted,
changes to the engine cooling system may be
necessary, depending on the vehicle type.
If you have a trailer tow hitch retrofitted,
observe the anchorage points on the chassis
frame.
The installation of a trailer tow hitch is only per-
missible if a towing weight is specified in your
vehicle documents. If this is not the case, then
the vehicle is not approved for the towing of a
trailer.214
Towing a trailer
Driving an d parking

For more information, please contact a qualified
specialist workshop.
Please observe the manufacturer's operating
instructions for the trailer coupling if a detach-
able trailer coupling is used.
Couple and uncouple the trailer carefully. If you
do not couple the trailer to the towing vehicle
correctly, the trailer could become detached.
Make sure that the following values are not
exceeded: R
the permissible trailer drawbar noseweight R
the permissible trailer load R
the permissible rear axle load of the towing
vehicle R
the maximum permissible gross vehicle
weight of both the towing vehicle and the
trailer
The applicable permissible values, which must
not be exceeded, can be found: R
in the vehicle documents R
on the type plate for the trailer R
on the vehicle identification plate
If the values differ, the lowest value applies.
When towing a trailer, your vehicle's handling
characteristics will be different in comparison
with when driving without a trailer.
The vehicle/trailer combination: R
is heavier R
is restricted in its acceleration and gradient-
climbing capability R
has an increased braking distance R
is affected more by strong crosswinds R
demands more sensitive steering R
has a larger turning circle
This could impair the handling characteristics.
When towing a trailer, always adjust your speed
to the current road and wea ther conditions. Do
not
exceed the maximum permissible speed for
your vehicle/trailer combination.
Notes on towing a trailer
General notes R
Do not exceed the maximum permissible
speed for vehicle/trailer combinations in the
relevant country. This lowers the risk of an accident. R
Only install an approved trailer coupling on
your vehicle.
Further information on availability and on
installation is available from any authorized
Mercedes-Benz Center. R
The bumpers of your vehicle are not suitable
for installing detachable trailer couplings. R
Do not install hired trailer couplings or other
detachable trailer couplings on the bumpers
of your vehicle. R
If you no longer need the ball coupling,
remove it from the ball coupling recess. This
will reduce the risk of damage to the ball cou-
pling.
When towing a trailer, set the tire pressure on
the rear axle of the towing vehicle for a maxi-
mum load; see the tire pressure table in the fuel
filler flap ( Y
page 367).
Please note that when towing a trailer, the fol-
lowing driving systems have limited availability
or are not available at all: R
PARKTRONIC ( Y
page 191) R
Blind Spot Assist ( Y
page 205)R
Active Lane Keeping Assist ( Y
page 212)
On vehicles without level control, the height of
the ball coupling will alter according to the load
placed on the vehicle. If necessary, use a trailer
with a height-adjustable drawbar.
You will find permissible trailer loads under
"Technical data" ( Y
page 384).
Driving tips Observe the information on ESP ®
trailer stabili-
zation ( Y
page 72) and on pulling away with a
trailer ( Y
page 140).
The maximum permissible speed for vehicle/
trailer combinations depends on the type of
trailer. Before beginning the journey, check the
trailer's documents to see what the maximum
permitted speed is. Observe the maximum per-
missible speed in the relevant country.
For certain Mercedes-Benz vehicles, the maxi-
mum permissible rear axle load is increased
when towing a trailer. See the "Technical data"
section to find out whether this applies to your
vehicle ( Y
page 384). In the event of increased
rear axle load, the vehicle/trailer combination
may not exceed a maximum speed of 60 mph
(100 km/h) for reasons concerning the operat-
ing permit. This also applies in countries inTowing a trailer 215
Driving and parking Z

which the maximum permissible speed for vehi-
cle/trailer combinations is above 60 mph
(100 km/h).
When towing a trailer, your vehicle's handling
characteristics will be different in comparison to
when driving without a trailer and it will con-
sume more fuel.
Shift to a lower gear on long and steep downhill
gradients.
This also applies to: R
activated DISTRONIC PLUS R
activated cruise control
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. If you need additional
braking, depress the brake pedal repeatedly
rather than continuously.
Driving tips If the trailer swings from side to side: X
Do not accelerate. X
Do not counter-steer. X
Brake if necessary. R
Maintain a greater distance from the vehicle
in front than when driving without a trailer. R
Avoid braking abruptly. If possible, brake gen-
tly at first to allow the trailer to run on. Then,
increase the braking force rapidly. R
The values given for gradient-climbing capa-
bilities from a standstill refer to sea level.
When driving in mountainous areas, note that
the power output of the engine and, conse-
quently, the vehicle's gradient-climbing capa-
bility, decreases with increasing altitude.
Installing the ball coupling
G WARNING
If the ball coupling is not correctly installed
and secured, it could come loose while driving
and endanger other road users. There is a risk
of an accident and injury.
Install and secure the ball coupling as descri-
bed in the ball coupling manufacturer's instal-
lation instructions. Make sure that the ball coupling is correctly installed and secured
before every journey.
G WARNING
If the ball coupling is not installed and secured
correctly the trailer may come loose. There is
a risk of an accident.
Install and secure the ball coupling as descri-
bed in the ball coupling installation instruc-
tions. Make sure that the ball coupling is
installed and secured correctly before every
journey.
X
Pull protective cap C in the direction of the
arrow, out of the ball coupling recess. X
Stow protective cap C so that it cannot be
thrown around. X
Observe the manufacturer's installation
instructions.
Observe the loading guidelines ( Y
page 290)
and the safety notes regarding stowage
spaces ( Y
page 290).
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
Apply the vehicle's electric parking brake
manually. X
Start the engine. X
Shift the transmission to position ] .X
Vehicles with AIR BODY CONTROL: select
the Comfort drive program.216
Towing a trailer
Driving and parking