2018 MERCEDES-BENZ GLC COUPE coolant temperature

ECO start/stop function ................ 121
General notes ................................ 118
Indicator lamp ................................ 122
Ionization ....................................... 127
Ionization (multimedia system) ...... 271
Notes on using the automatic cli-
mate control .................................. 120
Overview ........................................ 270
Overview of systems ...................... 118
Perfume atomizer .......................... 126
Perfume atomizer (multimedia
system) .......................................... 271
Problem with the rear window
defroster ........................................ 125
Problems with cooling with air
dehumidification ............................ 122
Rear control panel ......................... 119
Refrigerant ..................................... 365
Refrigerant filling capacity ............. 366
Setting the air distribution ............. 123
Setting the air vents ...................... 127
Setting the airflow ......................... 123
Setting the climate mode ............... 122
Setting the climate mode (multi-
media system) ............................... 271
Setting the temperature ................ 122
Switching air-recirculation mode
on/off ............................................ 125
Switching on/off ........................... 121
Switching residual heat on/off ...... 125
Switching the rear window
defroster on/off ............................ 124
Switching the synchronization
function on and off ........................ 123
Synchronization function (multi-
media system) ............................... 271
Climate control settings
Multimedia system ........................ 270
Climate control system
Climate control .............................. 121
Coat hooks ......................................... 285
Cockpit
Overview .......................................... 35
Code for Apps
see QR code
COMAND display
Cleaning ......................................... 313
Combination switch .......................... 109 Connecting a USB device
see also Digital Operator's Man-
ual .................................................. 266
Consumption statistics (on-board
computer) .......................................... 211
Controller ........................................... 267
Controlling the speed
see Distance Pilo t DISTRONIC
C

onvenience closing feature .............. 91
Convenience opening feature ............ 91
Coolant (engine)
Checking the level ......................... 306
Display message ............................ 238
Filling capacity ............................... 365
Important safety notes .................. 364
Temperature display in the instru-
ment cluster .................................. 207
Warning lamp ................................. 261
Cooling
see Climate control
Copyright ............................................. 34
Cornering light function
Display message ............................ 237
Function/notes ............................. 110
Crosswind Assist ................................. 71
Cruise control
Cruise control lever ....................... 159
Deactivating ................................... 160
Display message ............................ 247
Driving system ............................... 159
Function/notes ............................. 159
General notes ................................ 159
Important safety notes .................. 159
Setting a speed .............................. 160
Storing and maintaining current
speed ............................................. 160
Storing the current speed or call-
ing up the last stored speed .......... 160
Cup holder
Center console .............................. 288
Important safety notes .................. 287
Rear compartment ......................... 288
Customer Assistance Center
(CAC) ..................................................... 31
Customer Relations Department ....... 31
8Index

Tail lampsDisplay message ............................ 237
Tailgate
Display message ............................ 252
Emergency unlocking ....................... 89
HANDS-FREE ACCESS ..................... 87
Important safety notes .................... 84
Limiting the opening angle ............... 89
object detection ............................... 85
Opening dimensions ...................... 366
Opening/closing (automatically
from inside) ...................................... 88
Opening/closing (automatically
from outside) ................................... 85
Reversing feature ............................. 85
Tank content
Fuel gauge ....................................... 36
Technical data
Capacities ...................................... 361
Drawbar load (maximum) ............... 367
Information .................................... 359
Trailer loads ................................... 367
Vehicle data ................................... 366
Telephone
Accepting a call (multifunction
steering wheel) .............................. 216
Authorizing a mobile phone (con-
necting) ......................................... 273
Connecting a mobile phone
(device manager) ........................... 273
Display message ............................ 253
Introduction ................................... 216
Menu (on-board computer) ............ 216
Number from the phone book ........ 216
Redialing ........................................ 217
Rejecting/ending a call ................. 216
see also Digital Operator's Man-
ual .................................................. 266
see Mobile phone
Temperature
Coolant (display in the instrument
cluster) .......................................... 207
Engine oil (on-board computer,
Mercedes-AMG vehicles) ............... 221
Outside temperature ...................... 207
Setting (climate control) ................ 122
Transmission oil (on-board com-
puter, Mercedes-AMG vehicles) ..... 221 Timing (RACETIMER)
......................... 223
Tire pressure
Calling up (on-board computer) ..... 340
Checking manually ........................ 339
Display message ............................ 248
Maximum ....................................... 339
No

t reached (TIREFIT) .................... 321
Notes ............................................. 337
Reached (TIREFIT) .......................... 321
Recommended ............................... 336
Using the TIREFIT kit ...................... 320
Tire pressure loss warning system
General notes ................................ 339
Important safety notes .................. 339
Restarting ...................................... 340
Tire pressure monitor
Checking the tire pressure elec-
tronically ........................................ 342
Function/notes ............................. 340
General notes ................................ 340
Important safety notes .................. 341
Radio type approval for the tire
pressure monitor ........................... 343
Restarting ...................................... 342
Warning lamp ................................. 264
Warning message .......................... 342
Tire pressure sensors
Display message ............................ 249
Tire-change tool kit ........................... 317
TIREFIT kit
Important safety notes .................. 319
Storage location ............................ 317
Tire pressure not reached .............. 321
Tire pressure reached .................... 321
Using ............................................. 320
Tires
Aspect ratio (definition) ................. 352
Average weight of the vehicle
occupants (definition) .................... 351
Bar (definition) ............................... 351
Changing a wheel .......................... 353
Characteristics .............................. 351
Checking ........................................ 333
Curb weight (definition) ................. 352
Definition of terms ......................... 351
Direction of rotation ...................... 353
Display message ............................ 248
Index21

ProblemPossible causes/consequences andMSolutions
The engine is not running
smoothly and is misfir-
ing.There is a malfunction in the engine electronics or in a mechanical
component of the engine management system.
XOnly depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic converter
and damage it.
XHave the cause rectified immediately at a qualified specialist work-
shop.
The coolant temperature
display indicates a value
within the red band.The coolant level is too low. The coolant is too hot and the engine is no
longer being cooled sufficiently.
XStop as soon as possible and allow the engine and the coolant to
cool down.
XCheck the coolant level (Ypage 306). Observe the warning notes
as you do so and add coolant if necessary.
DYNAMIC SELECT switch
Mercedes-AMG vehicles
General information
Use the DYNAMIC SELECT switch to select the
drive program.
Available drive programs for Mercedes-
AMG GLC 43 4MATIC:
S+ Sport PlusParticularly sporty driving
characteristics
SSportSporty driving characteris-
tics
C ComfortComfortable and economi-
cal driving characteristics
EEconomyParticularly economical
driving characteristics
IIndividualIndividual settings
Available drive programs for Mercedes-
AMG GLC 63 4MATIC+/GLC 63 S 4MATIC+:
RACE
(S‑MODEL)Driving characteristics suit-
able for a race circuit
S+ Sport PlusParticularly sporty driving
characteristics
SSportSporty driving characteris-
tics
C ComfortComfortable and economi-
cal driving characteristics
IIndividualIndividual settings
Depending on the drive program selected the
following vehicle characteristics will change:
Rthe drive (engine and transmission manage-
ment)
Rthe suspension
Rthe steering
Rthe driver assistance systems
RESP®(Mercedes-AMG GLC 63 4MATIC+/
GLC 63 S 4MATIC+)
Rthe position of the exhaust flap (Mercedes-
AMG GLC 63 4MATIC+/GLC 63 S 4MATIC+)
Rthe setting of the ECO start/stop function
Rthe availability of gliding mode
Rthe climate control
Further information for automatic drive program
characteristics (
Ypage 144).
Additionally, in drive program Iyou can config-
ure the respective vehicle characteristics using
the multimedia system. You can find informa-
tion about this under "DYNAMIC SELECT" in the
vehicle's Digital Operator's Manual.
Each time you start the engine with the Smart-
Key or the Start/Stop button, drive program Cis
activated. Further information about starting
the engine (
Ypage 132).
138DYNAMIC SELECT switch
Driving and parking

When overtaking, pay particular attention to the
extended length of your vehicle/trailer combi-
nation.
Due to the length of the vehicle/trailer combi-
nation, you require additional road space when
overtaking before you can change back to the
original lane.
If the automatic transmission repeatedly shifts
between gears on uphill or downhill gradients,
shift to a lower gear.
Driving in a lower gear and at a reduced speed
decreases the risk of engine damage.
If the coolant temperature increases signifi-
cantly when climate control is switched on,
switch climate control off.
Coolant heat can also be dissipated by opening
the windows and switching the ventilation
blower and the interior temperature to the high-
est level.
Decoupling a trailer
GWARNING
If you uncouple a trailer with the overrun
brake engaged, you could trap your hand
between the vehicle and the trailer drawbar.
There is a risk of injury.
Do not uncouple a trailer if the overrun brake
is engaged.
GWARNING
Vehicles with level control:
The vehicle is lowered as soon as you discon-
nect the trailer cable. This could result in your
limbs or those of other people that are
between the vehicle body and tires or under-
neath the vehicle being trapped. There is a
risk of injury.
Make sure that nobody is in the immediate
vicinity of the wheel housings or under the
vehicle when you disconnect the trailer cable.
!Do not disconnect a trailer with an engaged
overrun brake. Otherwise, your vehicle could
be damaged by the rebounding of the overrun
brake.
XApply the vehicle's parking brake manually.
XShift the transmission to position j.
XClose all doors and the tailgate.
XSwitch off the engine.
XSecure the vehicle and trailer against rolling
away.
XRemove the trailer cable.
XRemove the safety chains, if there are any.
XUncouple the trailer.
Removing the ball coupling
XObserve the manufacturer's installation
instructions.
XPress the protective cap into the ball coupling
recess.
XMake sure that the protective cap is firmly in
place.
Observe the loading guidelines (
Ypage 276)
and the safety notes regarding stowage spaces
(
Ypage 276).
Information on cleaning and care of the trailer
tow hitch (
Ypage 313).
Trailer power supply
!
Accessories with a maximum power con-
sumption of 180 W can be connected to the
permanent power supply.
You must not charge a trailer battery using the
power supply.
The trailer socket of your vehicle is equipped at
the factory with a permanent power supply.
The permanent power supply is supplied via
trailer socket pin 4.
The trailer's permanent power supply is
switched off in the event of low vehicle supply
voltage and after six hours at the latest.
A qualified specialist workshop can provide
more information about installing the trailer
electrics.
Permissible trailer loads and trailer
drawbar noseweights
Weight specifications
The gross trailer weight is calculated as the
weight of the trailer plus the weight of the load
and the trailer's equipment.
204Towing a trailer
Driving and parking

Tachometer
!
Do not drive in the overrevving range, as this
could damage the engine.
The red band in the tachometer indicates the
engine's overrevving range.
The fuel supply is interrupted to protect the
engine when the red band is reached.
Outside temperature display
You should pay special attention to road condi-
tions when temperatures are around freezing
point.
Bear in mind that the outside temperature dis-
play indicates the temperature measured and
does not record the road temperature.
The outside temperature display is in the multi-
function display (
Ypage 208).
Changes in the outside temperature are dis-
played after a short delay.
Coolant temperature gage
GWARNING
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could expose you to hot gases
or other service products. There is a risk of
injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
!If the coolant temperature is too high, a dis-
play message is shown.
If the coolant temperature display is in the
area marked in red, do not continue driving.
Otherwise, the engine will be damaged.
The coolant temperature gauge is in the lower
section of the tachometer (
Ypage 36).
Under normal operating conditions and at the
correct coolant level, the display may rise to the
red mark.
Operating the on-board computer
:Multifunction display
;Right control panel
=Left control panel
XTo activate the on-board computer: switch
on the power supply.
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
òROpens a menu list
9
:Press briefly:
RScrolls in lists
RSelects a menu or function
RIn the RadioorMediamenu:
opens a track or station list and
selects a station, an audio track or
a video scene.
RIn the Telephonemenu: switches
to the phone book and selects a
name or a telephone number
9
:Press and hold:
RScrolls quickly through all lists
RIn the RadioorMediamenu:
selects a station, audio track or
video scene using rapid scrolling
RIn the Telephonemenu: starts
rapid scrolling if the phone book is
open
Displays an doperation207
On-boa rd computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
Adaptive HighbeamAssist CurrentlyUnavailable SeeOperator'sManual
Adaptive Highbea mAssis tis deactivated and temporarily inoperative.
Possibl ecauses are:
RThe windshield in th ecamera' sfield of vision is dirty.
RVisibilit yis impaire ddue to heav yrain ,snow or fog .
XClean thewindshield.
If th esystem detects that th ecamera is full yoperational again ,th e
Adaptive
HighbeamAssistNowAvailablemessage is displayed.
Adaptive Highbea mAssis tis operational again .
Adaptive HighbeamAssist InoperativeAdaptive HighbeamAssis tis malfunctioning .
XVisitaqualified specialist workshop .
Engine
Display messagesPossible causes/consequences and MSolutions
+
CheckCoolantLevelSee Operator' sMan ‐ual
The coolan tlevel is to olow.
!Avoid making lon gjourneys wit hto olittl ecoolan tin th eengin e
coolin gsystem. The engin ewill otherwise be damaged.
XAd dcoolant, observing th ewarning note sbefore doin gso
(Ypage 306).
If you have to ad dcoolant frequently:
XContac t aqualified specialist workshop and hav eth eengin ecoolin g
system checked.
?The fan motor is malfunctioning .
XIf thecoolan ttemperature is belo wthered marking in th ecoolan t
temperature gage ,drive to th eneares tqualified specialist work-
shop.
XAvoid heav yloads on th eengin eas you do so, e.g. drivin gin moun -
tainous terrain and stop-and-g otraffic.
238Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
?
CoolantToo HotSto pVehicl eTur nEngine Off
The coolan tis to ohot .
A warning tone also sounds.
GWARNIN G
Do no tdrive when your engin eis overheated. This can caus esom e
fluids whic hmay hav eleaked int oth eengin ecompartmen tto catch
fire.
Steam from th eoverheate dengin ecan also caus eserious burn swhic h
can occur jus tby opening th ehood.
There is aris kof injury.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 151).
XWait until th eengin ehas cooled down .
XMakesur ethat th eair supply to th eengin eradiato ris no tblocked,
e.g. by snow, slus hor ice .
XDo no tstart th eengin eagain until th edisplay message goe sout and
th ecoolan ttemperature gage is belo wthered marking .Otherwise ,
th eengin ecould be damaged.
XPay attention to th ecoolan ttemperature gage .
If th etemperatur eincreases again:
XVisit aqualified specialist workshop immediately.
Under normal operating condition sand wit hth especified coolan t
level, th ecoolan ttemperature display may ris eto th ered marking .
#
See Operator' sMan ‐ual
The battery is no tbein gcharged.
A warning tone also sounds.
Possibl ecauses are:
Radefective alternato r
Ratorn poly-V-belt
Ramalfunction in th eelectronics
!Do no tcontinu edriving. The engin ecould otherwise overheat.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 151).
XConsult aqualified specialist workshop .
Display messages239
On-board computer and displays
Z

Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
8NThe yellow reserve fuel warning lamp flashes while the vehicle is in motion.
In addition, the ;Check Engine warning lamp may light up.
The fuel filler cap is not closed correctly or the fuel system is leaking.
XCheck that the fuel filler cap is correctly closed.
XIf the fuel filler cap is not correctly closed: close the fuel filler cap.
XIf the fuel filler cap is closed:visit a qualified specialist workshop.
?NThe red coolant warning lamp lights up while the engine is running and the
coolant temperature gage is at the start of the scale.
The temperature sensor for the coolant temperature gage is malfunctioning.
The coolant temperature is no longer being monitored. There is a risk of engine
damage if the coolant temperature is too high.
XPull over and stop the vehicle safely and switch off the engine, paying attention
to road and traffic conditions. Do not continue driving under any circumstances.
XSecure the vehicle against rolling away (Ypage 151).
XConsult a qualified specialist workshop.
Warning and indicator lamps in the instrument cluster261
On-board computer and displays
Z