2019 MERCEDES-BENZ GLC coolant level

Charge-air pressure (on-board
computer, Mercedes-AMG vehi-
cles).................................................... 223
Child
Restraint system .............................. 60
Child seat
Forward-facing restraint system ...... 63
LATCH-type (ISOFIX) child seat
anchors ............................................ 61
On the front-passenger seat ............ 62
Rearward-facing restraint system .... 63
Top Tether .......................................61
Child-proof locks
Important safety notes .................... 63
Rear doors .......................................64
Children
Special seat belt retractor ...............59
Children in the vehicle
Important safety notes .................... 59
Cigarette lighter................................ 291
Cleaning
Mirror turn signal ...........................309
Trailer tow hitch .............................310
Climate control
Control panel for 3-zone auto-
matic climate control ..................... 120
Control panel for dual-zone auto-
matic climate control ..................... 119
Controlling automatically ...............123
Cooling with air dehumidification .. 122
Cooling with air dehumidification
(multimedia system) ......................273
Defrosting the windows ................. 125
Defrosting the windshield .............. 125
ECO start/stop function ................ 122
General notes ................................ 119
Indicator lamp ................................ 123
Ionization ....................................... 128
Ionization (multimedia system) ...... 273
Notes on using the automatic cli-
mate control .................................. 121
Overview ........................................ 272
Overview of systems ......................119
Perfume atomizer .......................... 127
Perfume atomizer (multimedia
system) .......................................... 273
Problem with the rear window
defroster ........................................ 126
Problems with cooling with air
dehumidification ............................ 123
Rear control panel ......................... 120
Refrigerant ..................................... 362
Refrigerant filling capacity ............. 363
Setting the air distribution ............. 124
Setting the air vents ......................128
Setting the airflow ......................... 124
Setting the climate mode ...............123
Setting the climate mode (multi-
media system) ............................... 273
Setting the temperature ................ 123
Switching air-recirculation mode
on/off ............................................ 126
Switching on/off ........................... 122
Switching residual heat on/off ...... 126
Switching the rear window
defroster on/off ............................ 125
Switching the synchronization
function on and off ........................ 124
Synchronization function (multi-
media system) ............................... 273
Climate control settings
Multimedia system ........................ 272
Climate control system
Climate control .............................. 122
Coat hooks......................................... 286
Cockpit
Overview .......................................... 35
Code for Apps
see QR code
COMAND display
Cleaning ......................................... 310
Combination switch.......................... 110
Connecting a USB device
see also Digital Operator's Man-
ual ..................................................268
Consumption statistics (on-board
computer).......................................... 213
Controller...........................................269
Controlling a speed
see Active Distance Assist DISTRONIC
Convenience closing feature.............. 91
Convenience opening feature............ 91
Coolant (engine)
Checking the level ......................... 303
Display message ............................ 240
8Index

Data acquisition ............................... 32
Display message ............................ 252
Electronics .....................................356
Equipment ....................................... 28
Individual settings .......................... 219
Limited Warranty .............................32
Loading .......................................... 340
Locking (in an emergency) ............... 84
Locking (SmartKey) .......................... 77
Lowering ........................................ 354
Maintenance .................................... 29
Operating safety .............................. 30
Operation outside the USA/
Canada ............................................ 29
Parking .......................................... 152
Parking for a long period ................ 155
Pulling away................................... 134
Raising ........................................... 351
Reporting problems ......................... 31
Securing from rolling away ............ 351
Technical data ............................... 356
Towing away .................................. 324
Transporting .................................. 326
Unlocking (in an emergency) ........... 84
Unlocking (SmartKey) ...................... 77
Vehicle data ................................... 363
Vehicle data
Dimensions .................................... 363
Vehicle emergency locking................ 84
Vehicle identification number
see VIN
Vehicle identification plate.............. 357
Vehicle level
AIR BODY CONTROL ...................... 173
Display message ............................ 244
Vehicle maintenance
see ASSYST PLUS
Video
Operating the DVD ......................... 217
see also Digital Operator's Man-
ual .................................................. 268
VIN
Seat ............................................... 358
Type plate ...................................... 357
W
Warning and indicator lamps
ABS ................................................ 259
Active Brake Assist ........................ 265
Airbag ............................................ 262
Brakes ........................................... 258
Coolant .......................................... 263
Distance warning ........................... 265
Engine diagnostics ......................... 262
ESP®.............................................. 259
ESP®OFF ....................................... 261
Fuel tank ........................................ 262
General notes ................................ 256
Overview .......................................... 36
Parking brake ................................ 262
PASSENGER AIR BAG ...................... 44
Reserve fuel ................................... 262
Restraint system ............................ 262
Seat belt ........................................ 257
SPORT handling mode ................... 261
Steering ......................................... 267
Tire pressure monitor .................... 266
Warranty.............................................. 28
Washer fluid
Display message ............................ 255
Weather display (COMAND)
see also Digital Operator's Man-
ual .................................................. 268
Wheel and tire combinations
Tires ............................................... 354
Wheel bolt tightening torque........... 354
Wheel chock...................................... 351
Wheels
Changing a wheel.......................... 350
Checking ........................................ 330
Cleaning ......................................... 308
Important safety notes .................. 330
Information on driving .................... 330
Interchanging/changing ................ 350
Mounting a new wheel ................... 353
Mounting a wheel .......................... 351
Removing a wheel.......................... 353
Snow chains .................................. 332
Storing ........................................... 351
Tightening torque ........................... 354
Wheel size/tire size ....................... 354
24Index

ProblemPossible causes/consequences andPPSolutions
The engine is not runningsmoothly and is misfir-ing.
There is a malfunction in the engine electronics or in a mechanicalcomponent of the engine management system.
XOnly depress the accelerator pedal slightly.Otherwise, non-combusted fuel may get into the catalytic converterand damage it.
XHave the cause rectified immediately at a qualified specialist work-shop.
The coolant temperaturedisplay indicates a valuewithin the red band.
The coolant level is too low. The coolant is too hot and the engine is nolonger being cooled sufficiently.
XStop as soon as possible and allow the engine and the coolant tocool down.
XCheck the coolant level (Ypage 303). Observe the warning notesas you do so and add coolant if necessary.
DYNAMIC SELECT switch
Mercedes-AMG vehicles
General information
Use the DYNAMIC SELECT switch to select thedrive program.
Available drive programs for Mercedes-AMG GLC 43 4MATIC:
S+Sport PlusParticularly sporty drivingcharacteristics
SSportSporty driving characteris-tics
CComfortComfortable and economi-cal driving characteristics
EEconomyParticularly economicaldriving 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 drivingcharacteristics
SSportSporty driving characteris-tics
CComfortComfortable and economi-cal driving characteristics
IIndividualIndividual settings
Depending on the drive program selected thefollowing 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 on automatic drive programcharacteristics (Ypage 145).
Additionally, in drive programIyou can config-ure the respective vehicle characteristics usingthe multimedia system. You can find informa-tion about this under "DYNAMIC SELECT" in thevehicle's Digital Operator's Manual.
DYNAMIC SELECT switch139
Driving and parking
Z

When overtaking, pay particular attention to theextended length of your vehicle/trailer combi-nation.
Due to the length of the vehicle/trailer combi-nation, you require additional road space whenovertaking before you can change back to theoriginal lane.
If the automatic transmission repeatedly shiftsbetween gears on uphill or downhill gradients,shift to a lower gear.
Driving in a lower gear and at a reduced speeddecreases 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 openingthe windows and switching the ventilationblower 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 engagedoverrun brake. Otherwise, your vehicle couldbe damaged by the rebounding of the overrunbrake.
XApply the vehicle's parking brake manually.
XShift the transmission to position].
XClose all doors and the tailgate.
XSwitch off the engine.
XSecure the vehicle and trailer against rollingaway.
XRemove the trailer cable.
XRemove the safety chains, if there are any.
XUncouple the trailer.
Removing the ball coupling
XObserve the manufacturer's installationinstructions.
XPress the protective cap into the ball couplingrecess.
XMake sure that the protective cap is firmly inplace.
Observe the loading guidelines (Ypage 278)and the safety notes regarding stowage spaces(Ypage 278).
Information on cleaning and care of the trailertow hitch (Ypage 310).
Trailer power supply
!Accessories with a maximum power con-sumption of 180 W can be connected to thepermanent power supply.
You must not charge a trailer battery using thepower supply.
The trailer socket of your vehicle is equipped atthe factory with a permanent power supply.
The permanent power supply is supplied viatrailer socket pin 4.
The trailer's permanent power supply isswitched off in the event of low vehicle supplyvoltage and after six hours at the latest.
A qualified specialist workshop can providemore information about installing the trailerelectrics.
Permissible trailer loads and trailer
drawbar noseweights
Weight specifications
The gross trailer weight is calculated as theweight of the trailer plus the weight of the loadand the trailer's equipment.
206Towing a trailer
Driving and parking

Tachometer
!Do not drive in the overrevving range, as thiscould damage the engine.
The red band in the tachometer indicates theengine's overrevving range.
The fuel supply is interrupted to protect theengine when the red band is reached.
Outside temperature display
You should pay special attention to road condi-tions when temperatures are around freezingpoint.
Bear in mind that the outside temperature dis-play indicates the temperature measured anddoes not record the road temperature.
The outside temperature display is in the multi-function display (Ypage 210).
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 thearea marked in red, do not continue driving.Otherwise, the engine will be damaged.
The coolant temperature gauge is in the lowersection of the tachometer (Ypage 36).
Under normal operating conditions and at thecorrect coolant level, the display may rise to thered mark.
Operating the on-board computer
CMultifunction display
DRight control panel

Mercedes-Benz Specifications for ServiceProducts is available at any authorizedMercedes-Benz Center.
The following cause engine failure or damageto the exhaust system:
RUse of engine oils and oil filters that havenot been expressly approved for the servicesystem
RReplacement of engine oil and oil filter afterthe replacement interval specified by theservice system has expired
RUse of engine oil additives
!Do not add too much oil. adding too muchengine oil can result in damage to the engineor to the catalytic converter. Have excessengine oil siphoned off.
Add engine oil (example)
XTurn capCcounter-clockwise and remove it.
XAdd engine oil.If the oil level is at or below the MIN mark onthe oil dipstick, add 1.1 US qt (1.0l)of engineoil.
XReplace capCon the filler neck and tightenclockwise.Ensure that the cap locks into place securely.
XCheck the oil level again with the oil dipstick(Ypage 301).
Further information on engine oil (Ypage 360).
Additional service products
Important safety notes
GWARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and
touch only the components described in the
following.
GWARNING
The engine compartment contains moving
components. Certain components, such as
the radiator fan, may continue to run or start
again suddenly when the ignition is off. There
is a risk of injury.
If you need to do any work inside the engine
compartment:
Rswitch off the ignition
Rnever reach into the area where there is a
risk of danger from moving components,
such as the fan rotation area
Rremove jewelry and watches
Rkeep items of clothing and hair, for exam-
ple, away from moving parts
GWARNING
The cooling system is pressurized, particularly
when the motor is warm. If you open the cap,
you could be scalded if hot coolant sprays out.
There is a risk of injury.
Let the engine cool down before you open the
cap. Wear protective gloves and protective
eyewear when opening. Open the cap slowly
to release pressure.
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.
302Engine compartment
Maintenance and care

Checking coolant level
Checking the coolant level (example)
XPark the vehicle on a level surface.
Only check the coolant level when the vehicleis on a level surface and the engine has cooleddown.
XTurn the SmartKey to positionHin the igni-tion lock (Ypage 131).
or
XPress the Start/Stop button twice on vehicleswith KEYLESS-GO or the KEYLESS-GO startfunction (Ypage 132).
XCheck the coolant temperature display in theinstrument cluster (Ypage 36).The coolant temperature must be below158 ‡ (70 †).
XTurn the SmartKey to positionZin the igni-tion lock (Ypage 131).
or
XPress the Start/Stop button once on vehicleswith KEYLESS-GO or the KEYLESS-GO startfunction (Ypage 132).
XSlowly turn capChalf a turn counter-clock-wise and allow excess pressure to escape.
XTurn capCfurther counter-clockwise andremove it.If the coolant is at the level of marker bar

Comply with the important safety notes for ser-vice products when handling coolant(Ypage 358).
The coolant is a mixture of water and anti-freeze/corrosion inhibitor. It performs the fol-lowing tasks:
Ranti-corrosion protection
Rantifreeze protection
Rraising the boiling point
If the coolant has antifreeze protection down to-35 ‡ (-37 †), the boiling point of the coolantduring operation is approximately 266 ‡(130 †).
The antifreeze concentrate/corrosion inhibitorconcentration in the engine cooling systemshould:
Rbe at least 50%. This will protect the enginecooling system against freezing down toapproximately -35 ‡ (-37 †).
Rnot exceed 55% (antifreeze protection downto -49‡[-45 †]). Otherwise, heat will not bedissipated as effectively
Mercedes-Benz recommends an antifreeze/corrosion inhibitor concentrate in accordancewith MB Specifications for Service Products310.1.
iWhen the vehicle is first delivered, it is filledwith a coolant mixture that ensures adequateantifreeze and anti-corrosion protection.
iThe coolant is checked with every mainte-nance interval at a qualified specialist work-shop.
Filling capacities
ModelCapacity
Mercedes-AMGGLC 43 4MATICCoupe
12.2 US qt (11.5l)
Mercedes-AMGGLC 63 4MATIC+Coupe
Mercedes-AMGGLC 63 S 4MATIC+Coupe
11.7 US qt (11.1l)
All other models12.7 US qt (12.0l)
Windshield washer system
Important safety notes
GWARNING
Windshield washer concentrate is highly flam-
mable. If windshield washer concentrate gets
onto hot components of the engine or the
exhaust system, it can ignite. There is a risk of
fire and injury.
Make sure that windshield washer concen-
trate is not spilled in the vicinity of the filler
neck.
!Only use washer fluid which is suitable forlamp lenses, e.g. MB SummerFit or MB Win-terFit. Unsuitable washer fluid may damagethe lamp lenses of the headlamps.
!Only MB SummerFit and MB WinterFitwasher fluid should be mixed together. Thespray nozzles may otherwise becomeblocked.
Do not use distilled or de-ionized water. Other-wise, the level sensor may give a false reading.
When handling washer fluid, observe the impor-tant safety notes on service products(Ypage 358).
At temperatures above freezing:
XFill the washer fluid reservoir with a mixture ofwater and windshield washer fluid, e.g. MBSummerFit.
Add 1 part MB SummerFit to 100 parts water.
At temperatures below freezing:
XFill the washer fluid reservoir with a mixture ofwater and washer fluid, e.g. MB WinterFit.
For the correct mixing ratio refer to the infor-mation on the antifreeze reservoir.
iAdd windshield washer fluid, e.g. MB Sum-merFit or MB WinterFit, to the washer fluid allyear round.
Climate control system refrigerant
Important safety notes
The climate control system of your vehicle is fil-led with refrigerant R‑134a.
362Service products and filling capacities
Technical data