key MERCEDES-BENZ GLC 2018 Repair Manual

R
In order to prevent any salt build-up, apply the
brakes occasionally while paying attention to
the traffic conditions. R
Carefully depress the brake pedal and the
beginning and end of a journey. R
Maintain a greater distance to the vehicle
ahead.
Servicing the brakes
! The brake fluid level may be too low, if: R
if the red brake warning lamp lights up in
the instrument cluster and R
you 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.
! Vehicles with 4MATIC: function or per-
formance tests may only be carried out on a 2-
axle dynamometer. If you wish to operate the
vehicle on such a dynamometer, please con-
sult a qualified specialist workshop in
advance. You could otherwise damage the
drive train or the brake system.
! Vehicles with 4MATIC: the ESP ®
system
operates automatically. If the electric parking
brake is tested on a brake dynamometer, the
engine and ignition must be switched off: turn
the SmartKey in the ignition lock to position

Display in th e assistance graphicX
Selec t th e Assistanc e Graphi c function
usin g th e on-boar d compute r ( Y
page 231).
Whe n DS R is activated symbol C appears in
th e assistanc e graphics display.
Changin g th e set speed whil e th e vehi-
cle is in motion
Whe n DS R is activated, you can chang e th e set
speed to a valu e between 1 mph and 11 mph
(Canada: between 4 km/h and 18 km/h) whil e
th e vehicle is in motion .X
To increas e or decreas e in 1 mp h incre-
ment s (Canada : 1 km/h increments):
briefly press th e cruise contro l lever to th e
pressure point, up C fo r a higher set speed or
down D fo r a lowe r set speed.
The multifunction display shows th e set valu e
in th e status indicator . Off-road program
General notes The additional off-road programs fo r drivin g off-
road are available only in vehicles wit h th e Off-
Road Engineerin g package.
Wit h th e exception of th e Slipper y off-road pro -
gram, th e off-road programs are intended fo r
drivin g off-road away from publi c roads. The
Slipper y off-road program can also be used fo r
drivin g on slipper y or snow-covered roads.
Use th e off-road program butto n to ope n th e Off-
road men u in th e multimedia system.
Dependin g on th e off-road program selected,
th e followin g vehicle characteristics will change: R
th e drive (engin e and transmissio n manage-
ment) R
vehicles wit h AIR BODY CONTROL: th e sus -
pensio n R
th e steerin g R
th e availabilit y of th e EC O start/sto p function
You can choos e between th e pre-configure d off-
road programs on th e off-road menu. Up to fiv e
off-road programs are available , dependin g on
th e equipmen t level.
Available off-road programs:
Slipper y
Optimal drivin g characteris -
tics on slipper y or snow-
covered roads
Off-road
Optimal drivin g characteris -
tics fo r easily negotiable off-
road terrain
Rockin g free
Optimal drivin g characteris -
tics fo r off-road terrain wit h
raised vehicle level or if
vehicle is stuck
Gradient
Optimal drivin g characteris -
tics fo r steep off-road ter-
rain
Trailer
Optimal drivin g characteris -
tics fo r towin g a trailer
The Rockin g free off-road program is available
only in vehicles wit h AI R BODY CONTROL .
Each time you start th e engin e wit h th e Smart -
Key or th e Start/Sto p button, th e C (Comfort )
drive program is activated.Driving systems 18 1
Driving an d parking Z

S (Sport) R
the suspension setting is
more taut R
the vehicle is set to low level R
at higher speeds, the vehicle
level does not continue to
lower R
Mercedes-AMG GLC 63
4MATIC+/GLC 63 S
4MATIC+: the 4MATIC+ is
synchronised more dynami-
cally
S+ (Sport
Plus)
Mercedes-
AMG GLC
63 4MATIC
+/GLC
63 S
4MATIC+:
RACE R
the suspension setting is
even more taut R
the vehicle is set to low level R
at higher speeds, the vehicle
level does not continue to
lower R
Mercedes-AMG GLC 63
4MATIC+/GLC 63 S
4MATIC+: the 4MATIC+ is
synchronised more dynami-
cally
Important safety notes
G WARNING
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.
i If one of the doors is open, the vehicle is not
lowered. Vehicle level Setting the raised vehicle level
Mercedes-AMG vehicles: it is possible to
choose between the "Normal" and "Raised"
vehicle levels below a speed of 30 mph
(50 km/h). Select the "Normal" setting for nor-
mal road surfaces and "Raised" for driving with
snow chains or on particularly poor road surfa-
ces. Your selection remains stored even if you
remove the SmartKey from the ignition lock.
All other models: it is possible to choose
between the "Normal" and "Raised" vehicle lev-
els below a speed of 50 mph (80 km/ h) . Select
the "Normal" setting for normal road surfaces
and "Raised" for driving with snow chains or on
particularly poor road surfaces. Your selection
remains stored even if you remove the Smart-
Key from the ignition lock. X
Start the engine.
If indicator lamp D is not lit: X
Press button C .
Indicator lamp D lights up.
The vehicle is set to high level.
The Vehicle Rising
message appears on
the multifunction display.
i The message disappears after ten seconds,
irrespective of the level reached. If necessary,
the vehicle is raised further.
Mercedes-AMG GLC 43 4MATIC: the "Raised
level" setting is canceled if you: R
drive at speeds greater than 44 mph
(70 km/h) R
drive for approximately three minutes at
speeds greater than 37 mph (60 km/h)Driving systems 185
Driving and parking Z

This is possible only if the same mode is
selected for the suspension by pressing the
button on the center console for AMG sports
suspension based on AIR BODY CONTROL
and the DYNAMIC SELECT switch. This is the
case, for example, when both are set to Com-
fort mode.
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 ( Y
page 138).
Sport mode
"Sport" mode ensures a more taut suspension
setting. Select this mode when employing a
sporty driving style, e.g. on winding country
roads. X
Press button C .
Indicator lamp

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

Settings in the climate menu Adjusting the climate mode settings The climate mode determines the type of air-
flow. The setting is active when the air-condi-
tioning system is set to X ( Y
page 128).X
Call up the climate control menu
( Y
page 284). X
To select Climate Mode : turn and press the
controller. X
To change the setting: turn the controller. X
To exit the menu: press the 8 button.
The climate mode bar displays the current air-
flow setting: DIFFUSE , MEDIUM or FOCUS .
Starting/stopping the perfume atomizer The perfume atomizer makes it possible to scent
the air in individual compartments in the vehicle
interior. Further information ( Y
page 132).X
Call up the climate control menu
( Y
page 284). X
To select Air Freshener : turn and press the
controller.
The setting element is active. X
To start/stop the perfume atomizer: press
the controller. X
To set the intensity: turn the controller when
the atomizer is switched on. X
To exit the menu: press the 8 button.
Switching the ionization on/off The ionization has a cleansing effect on the air in
the vehicle interior. Further information
( Y
page 133). X
Call up the climate control menu
( Y
page 284). X
To select Ionization : turn and press the
controller.
The setting element is active. X
To switch the ionization on or off: turn the
controller. X
To exit the menu: press the 8 button.
Activating or deactivating pre-entry cli-
mate control via the SmartKey
This function is available for plug-in hybrid vehi-
cles.
Before getting in, the driver's seat area or the
whole vehicle interior is briefly warmed or ven-
tilated. The air from the vents is pre-cooled. X
Call up the climate control menu
( Y
page 284). X
To select Pre-entry Climate Control
via Key : turn and press the controller. X
To activate or deactivate: turn the control-
ler. X
To exit the menu: press the 8 button.
Activating or deactivating pre-entry cli-
mate control at departure time This function is available for plug-in hybrid vehi-
cles.
The driver's seat and the vehicle interior are
heated or cooled prior to the set departure time. X
Call up the climate control menu
( Y
page 284). X
To select Pre-entry Climate Ctrl. at
Depart. Time : turn and press the controller.
A rotary menu appears. X
To select the setting: turn the controller.X
To exit the menu: press the 8 button.
Settings in the bottom bar of the cli-
mate control menu
Switching cooling with air dehumidifica-
tion on/off X
Call up the climate control menu
( Y
page 284). X
Slide 6 the controller repeatedly until the
bottom bar is activated. X
To select s A/C : turn and press the control-
ler. X
Switch cooling with air dehumidification on
s or off S .
i The current status of the cooling function is
displayed in the climate control bar: A/C ON
– activated, A/C OFF – deactivated.
i Deactivating the cooling with air dehumidi-
fication function reduces fuel consumption.
Synchronizing the climate control set-
tings
Use s Sync (synchronization) to select the cli-
mate control setting for all zones together s or
separately S .Operating system 285
Multimedia system Z

Searching for and authorizing a mobile
phone Before using your mobile phone with the multi-
media system for the first time, you will need to
search for the phone and then authorize (con-
nect) it. Depending on the mobile phone, author-
ization either takes place by means of Secure
Simple Pairing or by entering a passkey. The
multimedia system automatically makes the
procedure that is relevant for your mobile phone
available. The mobile phone is always connec-
ted automatically after authorization. Further
information on using a mobile phone with the
multimedia system (see the Digital Operator's
Manual).
If the multimedia system does not detect your
mobile phone, this may be due to particular
security settings on your mobile phone (see the
manufacturer's operating instructions).
Only one mobile phone can be connected to the
multimedia system at any one time.
Searching for a mobile phone
COMAND: X
Select Phone { Connect Device { Con‐
nect Another Device .X
One-telephone mode: select Main Phone .X
Two-telephone mode: select Additional
Phone (Incoming Calls Only) when a
mobile phone is already connected. X
Select Start Search .X
Select mobile phone.
Audio 20: X
Select Tel/

Stowage compartments in the front Glove compartment X
To open: pull handle C and open glove box
flap D .X
To close: fold glove box flap D up until it
engages.
Objects in A4 format or an iPad ®
, for example,
can be stored in the glove box. For vehicles with
a perfume atomizer ( Y
page 132) the storage
space of the glove box is restricted.
The glove box can only be locked and unlocked
using the mechanical key ( Y
page 80).X
To lock: insert the mechanical key into the
lock and turn it 90° clockwise to position H .X
To unlock: insert the mechanical key into the
lock and turn it 90° counter-clockwise to
position G . Eyeglasses compartment X
To open: press marking C .
The eyeglasses compartment opens down.
Make sure that the eyeglasses compartment is
always closed while the vehicle is in motion.
Stowage compartment in the front center
console
X
Briefly press trim D in the direction of the
arrow.
Cover C swings up.
Stowage compartment under the armrest
X
To open: press button C at front.
The stowage space opens.Stowage areas 291
Stowage and features Z

12 V sockets
General notes X
Turn the SmartKey to position G in the igni-
tion lock ( Y
page 136).
The sockets can be used for accessories with a
maximum draw of 180 W (15 A). Accessories
include such items as chargers for mobile
phones.
If you use the sockets for long periods when the
engine is switched off, the battery may dis-
charge.
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 sock-
ets is automatically cut. This ensures that there
is sufficient power to start the engine.
If you have connected a device to the 12 V
socket, leave the cover of the stowage com-
partment open. This prevents the cover from
being blocked.
Socket in the front center console
12 V socket (example) X
To open: open the stowage compartment
( Y
page 291). X
Lift up the cover of socket D .X
To close: push cover C of the stowage com-
partment closed. Socket in the rear compartment center
console X
Pull cover D out by its top edge. X
Lift up the cover of socket C .
Socket in the cargo compartment
X
Lift up the cover of socket C .
115 V socket
Important safety notes
G DANGER
When a suitable device is connected, the
115 V power socket will be carrying a high
voltage. You could receive an electric shock if
the connector cable or the 115 V power
socket is pulled out of the trim or is damaged
or wet. There is a risk of fatal injury. R
Use only connector cables that are dry and
free of damage. R
When the ignition is off, make sure that the
115 V power socket is dry. Features 305
Stowage and features Z

However, if you want to use your mobile phone,
do so only when the vehicle is stationary and in
a safe location.
Downloading destinations Downloading destinations Downloading destinations gives you access to a
database with over 15 million points of interest
(POIs). These can be downloaded on the navi-
gation system in your vehicle. If you know the
destination, the address can be downloaded.
Alternatively, you can obtain the location of
Points of Interest (POIs)/important destinations
in the vicinity.
Furthermore, you can download routes with up
to four way points.
You are prompted to confirm route guidance to
the address entered. X
Select Yes by turning 3 or sliding 1
the controller and confirm with 7 .
The system calculates the route and subse-
quently starts the route guidance with the
address entered.
If you select No
the address can be stored in
the address book.
The destination download function is available
if: R
the vehicle is equipped with a navigation sys-
tem. R
the relevant mobile phone network is availa-
ble and data transfer is possible.
Route Assistance This service is part of the mbrace PLUS Package
and cannot be purchased separately.
You can use the Route Assistance function even
if the vehicle is not equipped with a navigation
system.
Within the framework of this service, you receive
a professional and reliable form of navigation
support without having to leave your vehicle.
The customer service representative finds a
suitable route depending on your vehicle's cur-
rent position and the desired destination. You
will then be guided live through the current route
section. Search and Send General notes To use "Search & Send", your vehicle must be
equipped with mbrace and a navigation system.
Additionally, an mbrace service subscription
must be completed.
"Search & Send" is a destination entry service. A
destination address which is found on Google
Maps ®
can be transferred via mbrace directly to
your vehicle's navigation system.
Specifying and sending the destination
address X
Go to the website http://maps.google.com
and enter a destination address into the entry
field. X
To send the destination address to the e-
mail address of your mbrace account:
click on the corresponding button on the web-
site.
Example:
If you select 'Send to vehicle' and then
'Mercedes-Benz', the destination address will
be sent to your vehicle. X
When the "Send" dialog window appears:
Enter the e-mail address you specified when
setting up your mbrace account into the cor-
responding field. X
Click "Send".
Information on specific commands such as
"Address entry" or "Send" can be found on the
website.
Calling up a transmitted destination
address X
Turn the SmartKey to position 2 in the ignition
lock ( Y
page 136).
The transmitted destination address is loaded
into the vehicle's navigation system.
A display message appears, asking whether
navigation should be started. X
Select Yes by turning 3 or sliding 1
the controller and confirm with 7 .
The system calculates the route and subse-
quently starts the route guidance with the
address entered.
If you select No
the address can be stored in
the address book. Features 311
Stowage and features Z