MERCEDES-BENZ GLC SUV 2015 Owners Manual

To ensure reliable operation of the failure
indicator, each LED chain in the trailer lighting
must be guaranteed a minimum current of
50 mA. Trailer with 7-pin connector
General notes Trailer with 7-pin connector:
you can con-
nect to the 13-pin socket on the ball coupling
using an adapter or, if necessary, an adapter
cable. Both can be obtained at a qualified
specialist workshop.
Fitting the adapter !
Make sure that there is sufficient cable
play so that the cable cannot become
detached when cornering.
! Remove the installed adapter cable
before folding in the ball coupling. Other-
wise, damage may occur to the rear
bumper and the adapter cable. X
Open the socket cover.
X Insert the plug connector with lug :into
groove =on the socket.
X Turn bayonet connection ;around clock-
wise to the stop.
X Let the cover engage.
X If you are using an adapter cable, secure
the cable to the trailer with cable ties. 308
Towing a trailerDriving and parking

Problems with trailer towing
Problem
Possible causes/consequences and
M
MSolutions The displaced ball cou-
pling does not reach
the securely locked
position. R
The indicator lamp in the button flashes.
R The Trailer coupling Check lock Trailer coupling Check lock message appears in the
multifunction display.
X Initiate a new swivelling procedure.
If the ball coupling does not reach the safely engaged position as
a result:
X Start the engine
or
X Pull and hold the button during the whole swivelling procedure.
If the unlocked ball coupling does not reach the safely engaged
position even after several attempts:
X Make sure that there is sufficient ground clearance before con-
tinuing the journey.
X Consult a qualified specialist workshop.
As long as the display message Trailer
Trailercoupling
coupling Check
Checklock
lock
is shown in the multifunction display, no trailer should be attached. Unlocking using the
button in the tailgate:
The ball coupling does
not swivel, even
though:
R the vehicle is station-
ary
R no trailer cable is
connected
R the button was
briefly pulled. The on-board voltage is too low.
X Start the engine.
If the ball coupling still does not unlock:
X Consult a qualified specialist workshop. Towing a trailer
309Driving and parking Z

Problem
Possible causes/consequences and
M
MSolutions Unlocking using the
button in the driver's door (all vehicles
apart from PLUG-IN-
HYBRID):
The ball coupling does
not swivel, even
though:
R the vehicle is station-
ary
R no trailer cable is
connected. The on-board voltage is too low.
X Engage park position P.
X Switch on the power supply.
or
X Start the engine.
If the ball coupling still does not unlock:
X Consult a qualified specialist workshop. The ball coupling does
not swivel. The indica-
tor lamp in the button is flashing permanently.
The Trailer cou‐ Trailer cou‐
pling Check lock
pling Check lock
message appears in the
multifunction display. There is a malfunction in the release electronics.
X When the ball coupling is retracted: pull and hold the button
in the tailgate until the ball coupling engages into a securely
engaged and locked in a vertical position and then engages
again under the bumper.
X When the ball coupling is extended: pull and hold the button
in the tailgate until the ball coupling engages underneath the
bumper.
If the ball coupling still does not unlock:
X Consult a qualified specialist workshop. 310
Towing a trailerDriving and parking

Useful information
............................312
Important safety notes .....................312
Displays and operation .....................312
Menus and submenus ......................317
Display messages ............................. 335
Warning and indicator lamps in the instrument cluster ............................375 311On-board computer and displays

Useful information
i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variations are pos- sible. Note that your vehicle may not be
equipped with all of the functions descri-
bed. This is also the case for systems and
functions relevant to safety.
i Read the information on qualified special-
ist workshops: (Y page 28). Important safety notes
G
WARNING
Operating the integrated information systems and communications equipment in the vehicle
while driving will distract you from traffic con-
ditions. You could then lose control of the
vehicle. There is a risk of an accident.
Only operate these devices if road traffic con-
ditions permit. If you are unsure about the
surrounding conditions, pull over to a safe
location and make entries only while the vehi-
cle is stationary.
You must observe the legal requirements for
the country in which you are currently driving when operating the on-board computer.
PLUG-IN HYBRID vehicles only: G
WARNING
If the instrument cluster has failed or there is a malfunction, you may not know about
safety-related function restrictions. The oper- ating safety of your vehicle may be affected.
There is a risk of an accident.
Immediately stop the vehicle while paying
attention to the traffic conditions and consult
a qualified specialist workshop.
All vehicles, except PLUG-IN HYBRID vehi- cles: G
WARNING
If the instrument cluster has failed or mal-
functioned, you may not recognise function
restrictions relevant to safety. The operating
safety of your vehicle may be impaired. There is a risk of an accident.
Drive on carefully. Have the vehicle checked
at a qualified specialist workshop immedi-
ately.
If the operating safety of your vehicle is
impaired, park the vehicle safely as soon as
possible. Contact a qualified specialist work-
shop.
The on-board computer only shows messages
or warnings from certain systems in the mul- tifunction display. You should therefore make
sure your vehicle is operating safely at all
times.
For an overview, see the instrument cluster
illustration (Y page 34). Displays and operation
Instrument cluster lighting
The lighting in the instrument cluster, in the
displays and the controls in the vehicle inte-
rior can be adjusted using brightness control
knob :.
X Turn brightness control knob :up or
down.
If you turn the light switch (Y page 138) to
the T, ÃorL position, the 312
Displays and operationOn-board computer and displays

brightness will depend upon the brightness
of the ambient light.
i The light sensor in the instrument cluster
automatically controls the brightness of
the multifunction display.
In daylight, the displays in the instrument
cluster are illuminated. A dimming function
is not possible in daylight. Speedometer with segments
The speedometer is divided into segments on vehicles with DISTRONIC PLUS.
The segments in the speedometer indicate
which speed range is available.
R Cruise control activated (Y page 230):
The segments light up from the stored
speed to the type-tested maximum speed.
R Variable SPEEDTRONIC activated
(Y page 233):
The segments light up from the start of the
scale to the selected limit speed.
R DISTRONIC PLUS activated (Y page 236):
One or two segments in the set speed
range light up.
R DISTRONIC PLUS detects a vehicle in front
moving more slowly than the stored speed:
The segments between the speed of the
vehicle in front and the stored speed light
up. Rev counter
! Do not drive in the overrevving range.
Doing so will damage the engine.
The red band in the rev counter indicates the
engine's overrevving range.
The fuel supply is interrupted to protect the
engine when the red band is reached.
PLUG-IN HYBRID vehicles: when you select
the E-MODE operating mode, the display in
the instrument cluster switches from rev
counter to wattmeter (Y page 289). Outside temperature display
You should pay special attention to road con-
ditions when temperatures are around freez-
ing point.
Bear in mind that the outside temperature
display indicates the measured air tempera-
ture and not the road surface temperature.
The outside temperature display is in the mul- tifunction display (Y page 315).
Changes in the outside temperature are dis-
played after a short delay. Coolant temperature gauge
G
WARNING
If you open the bonnet while the engine is
overheating or while there is a fire in the
engine compartment, you could come into
contact with hot gases or other leaking ser-
vice products. There is a danger of injury.
Allow an overheating engine to cool down
before opening the bonnet. If there is a fire in the engine compartment, leave the bonnet
closed and notify the fire brigade.
All vehicles except PLUG-IN HYBRID vehicles: the coolant temperature gauge is in the lower
section of the rev counter (Y page 34).
PLUG-IN HYBRID vehicles: the multifunction
display shows the coolant temperature in the
Coolant Coolant submenu (Y page 327).
At high outside temperatures and when driv-
ing uphill, the coolant temperature may rise
to the end of the scale.
Under normal operating conditions and with
the specified coolant level, the coolant tem-
perature may rise to 120 †. Displays and operation
313On-board computer and displays Z

Operating the on-board computer
:
Multifunction display
; Right control panel
= Left control panel
X To activate the on-board computer: turn
the key to position 1in the ignition lock.
You can control the multifunction display and
the settings in the on-board computer using
the buttons on the multifunction steering
wheel.
Left control panel ò R
Opens the menu list 9
: Press briefly:
R Scrolls through lists
R Selects a menu or function
R In the Radio Radio orMedia
Media menu:
opens the track or station list
and selects a station, an audio
track or a video scene
R In the Telephone Telephone menu:
switches to the phone book and
selects a name or a telephone
number 9
: Press and hold:
R Scrolls rapidly through all lists
R In the Radio Radio orMedia
Media menu:
selects a station, audio track or
video scene using rapid scrolling
R In the Telephone Telephone menu: starts
rapid scrolling if the phone book is open a R
In all menus: confirms the selec-
ted entry in the list
R In the Radio
Radio orMedia
Media menu:
opens the list of available radio
sources or media
R In the Telephone Telephone menu:
switches to the phone book and
starts dialling the selected num-
ber ñ R
Vehicles with Audio 20:
Switches off voice-operated con-
trol for navigation (see manufac-
turer's operating instructions)
R Vehicles with COMAND Online:
Switches off LINGUATRONIC
(see the separate operating
instructions) % Press briefly:
R Back
R In the Radio Radio orMedia
Media menu:
deselects the track or station list or list of available radio sources
or media
R Hides display messages
R Exits the telephone book/redial
memory % Press and hold:
R Calls up the standard display in
the Trip Trip menu 314
Displays and operationOn-board computer and displays

Right control panel
~ R
Rejects or ends a call
R Exits the telephone book/redial
memory 6 R
Makes or accepts a call
R Switches to the redial memory W
X R
Adjusts the volume 8 R
Mute ó R
Vehicles with Audio 20:
Switches on voice-operated con-
trol for navigation (see manufac-
turer's operating instructions)
R Vehicles with COMAND Online:
Switches on LINGUATRONIC
(see the separate operating
instructions) Multifunction display
:
Drive program (Y page 198)
; Transmission position (Y page 199)
= All vehicles, except PLUG-IN HYBRID vehi-
cles: additional speedometer
(Y page 333)
? Display A
Time
B PLUG-IN HYBRID vehicles: outside tem-
perature or additional speedometer
(Ypage 333)
Display panel =shows the selected menu or
submenu and display messages.
X To open the menu list: press theò
button on the steering wheel.
Display panel =appears in the menu list.
Possible displays in the multifunction dis-
play:
R ZGearshift recommendation, when shifting
manually (Y page 201)
R j Active Parking Assist (Y page 257)
R ¯ Cruise control (Y page 230)
R È SPEEDTRONIC (Y page 233)
R DSR DSR Downhill Speed Regulation
(Y page 248)
R READY READY PLUG-IN HYBRID operation activa-
ted (PLUG-IN HYBRID vehicles)
(Y page 295)
R HYBRID HYBRID operating mode, additional operat-
ing mode displays (PLUG-IN HYBRID vehi-
cles) (Y page 289)
R è Electric range (PLUG-IN HYBRID vehi-
cles) (Y page 289)
R _ Adaptive Highbeam Assist Plus
(Y page 143)
R è ECO start/stop function
(Y page 192)
R ë HOLD function (Y page 247)
R a DISTRONIC PLUS Steering Assist and
Stop&Go Pilot (Y page 245)
R 120 120 km/h!
km/h! (only for certain countries) max-
imum permissible speed exceeded Head-up display
General notes The head-up display projects information
from the navigation system and the driver
assistance system above the dashboard into
the driver's field of vision. Displays and operation
315On-board computer and displays Z

A requirement for the display of the contents
is that the following functions are available in the vehicle and are switched on:
R Cruise control and SPEEDTRONIC
R DISTRONIC PLUS
R Traffic Sign Assist
R Navigation
The head-up display allows the driver to see
all of the information without having to take
their eyes off the road.
Important safety notes The head-up display is only an aid and is not a
substitute for attentive driving.
Speed limits and overtaking restrictions are
not always correctly displayed. Traffic signs
always have priority over the Traffic Sign
Assist display.
The visibility of the head-up display is influ-
enced by the following conditions:
R the driver's seat position
R the positioning of the display image
R the general light conditions
R sunglasses with polarisation filters
R Wet road surfaces
R blocking of sunlight by objects on the dis-
play cover
In the event of extreme sunlight, sections of
the display may fade. This can be reversed by
switching the head-up display off and on
again.
i Vehicles with the head-up display are
equipped with a special windscreen.
Should repairs be necessary, have the
windscreen replaced at a qualified special-
ist workshop. Displays and operation Switching the head-up display on/off
X
Press button :.
When the head-up display is switched on,
the display appears in the driver's field of
vision. 316
Displays and operationOn-board computer and displays

Standard displays in the head-up display
The head-up display shows the following contents and information:
: Navigation messages
; Current speed
= DISTRONIC PLUS set speed (Y page 236)
Cruise control set speed (Y page 230)
SPEEDTRONIC set speed (Y page 233)
? Detected instructions and traffic signs
Setting options
You can make the following settings in the
head-up display submenu:
R adjust the position of the head-up display
on the windscreen (Y page 331)
R adjust the brightness of the displays in the
head-up display (Y page 331)
R select desired displays in the head-up dis-
play (Y page 330)
Using the Display content
Display content function, you
can, depending on your vehicle's equip-
ment, choose between four standard dis-
plays. The selected contents then appear in
the head-up display.
If you select a display with traffic signs,
detected traffic signs from Traffic Sign
Assist appear in the head-up display. Menus and submenus
Menu overview
Press the òbutton on the steering wheel
to open the menu list.
Operating the on-board computer
(Y page 314).
Depending on the vehicle equipment, you can
select the following menus:
R Trip
Trip menu (Y page 318)
R Navi Navi menu (navigation instructions)
(Y page 320)
R Radio
Radio menu (Y page 322)
R Media
Media menu (Y page 322)
R Telephone
Telephone menu (Ypage 324)
R Assistance graphic
Assistance graphic menu
(Y page 326)
R Service
Service menu (Ypage 326)
R Settings
Settings menu (Ypage 327) Menus and submenus
317On-board computer and displays Z