cooling MERCEDES-BENZ SLC 2019 Owners Manual

1, 2, 3 ...
12 V socket
see Sockets
A
ABS (Anti-lock Braking System)
Display message ............................ 183
Function/notes ................................ 57
Important safety notes .................... 57
Warning lamp .................................210
Accident
Automatic measures after an
accident ...........................................53
Activating media mode
General notes ................................ 223
Activating/deactivating cooling
with air dehumidification.................110
Active Brake Assist
Activating or deactivating .............. 175
Display message ............................ 188
Function/notes ................................ 58
Active Distance Assist
DISTRONIC
Calling up a speed......................... 146
Cruise control lever ....................... 146
Deactivating ................................... 149
Display message ............................ 199
Displays in the multifunction dis-
play ................................................ 149
Driving tips .................................... 150
Function/notes............................. 144
Important safety notes .................. 144
Indicator and warning lamp ........... 215
Setting the specified minimum
distance ......................................... 148
Stopping ........................................ 147
Storing a speed .............................. 146
Warning lamp ................................. 215
Active light function......................... 100
ADAPTIVE BRAKE................................. 64
Adaptive Brake Assist
Function/notes................................ 59
Adaptive brake lights.......................... 60
Adaptive Damping System
Function/notes............................. 152
Adaptive Highbeam Assist
Display message ............................ 194
Function/notes............................. 100
Switching on/off........................... 100
Additives (engine oil)........................ 301
Address book
see also Digital Operator's Man-
ual .................................................. 217
Adjusting the volume
Multimedia system ........................ 218
Air bags
Deployment ..................................... 50
Display message ............................ 191
Front air bag (driver, front
passenger) ....................................... 44
Head bag ......................................... 45
Important safety notes .................... 43
Introduction ..................................... 43
Knee bag .......................................... 44
Occupant Classification System
(OCS) ............................................... 46
PASSENGER AIR BAG indicator
lamps ............................................... 39
Side impact air bag.......................... 45
Air vents
Important safety notes .................. 115
Setting ........................................... 115
Setting the blower output of the
AIRSCARF vents ............................. 116
Setting the center air vents ........... 115
Setting the side air vents ............... 115
Switching AIRSCARF on/off............ 89
Air-conditioning system
see Climate control
AIRGUIDE............................................. 82
AIRSCARF
Problem (malfunction) ..................... 89
Switching on/off.............................. 89
AIRSCARF vents
Setting the blower output .............. 116
Alarm
ATA (Anti-Theft Alarm system)......... 64
Switching off (ATA) .......................... 64
Switching the function on/off
(ATA) ................................................ 64
Alarm system
see ATA (Anti-Theft Alarm system)
4Index

Children
Special seat belt retractor ...............54
Children in the vehicle
Important safety notes .................... 53
Cigarette lighter................................ 229
Cleaning
Mirror turn signal ...........................250
Climate control
Air-conditioning system ................. 106
Automatic climate control (dual-
zone) .............................................. 108
Controlling automatically ...............111
Cooling with air dehumidification .. 110
Defrosting the windows ................. 113
Defrosting the windshield .............. 112
General notes ................................ 106
Indicator lamp ................................ 111
Information about using auto-
matic climate control ..................... 109
Maximum cooling .......................... 113
Notes on using the air-condition-
ing system ..................................... 107
Overview of systems ......................106
Problem with the rear window
defroster ........................................ 114
Problems with cooling with air
dehumidification ............................ 111
Refrigerant ..................................... 303
Refrigerant filling capacity ............. 303
Setting the air distribution ............. 112
Setting the air vents ......................115
Setting the airflow ......................... 112
Setting the temperature ................ 111
Switching air-recirculation mode
on/off ............................................ 114
Switching on/off ........................... 110
Switching residual heat on/off ...... 114
Switching the rear window
defroster on/off ............................ 113
Switching the ZONE function
on/off ............................................ 112
Cockpit
Overview .......................................... 31
see Instrument cluster
Collapsible spare wheel
Inflating ......................................... 295
see Emergency spare wheel
Combination switch............................ 99
Compass
Calibrating ..................................... 238
Calling up ....................................... 237
Setting ...........................................238
Connecting a USB device
see also Digital Operator's Man-
ual ..................................................217
Consumption statistics (on-board
computer).......................................... 170
Controller...........................................218
Convenience closing feature.............. 77
Coolant (engine)
Checking the level ......................... 242
Display message ............................ 194
Filling capacity ............................... 302
Important safety notes .................. 301
Temperature (on-board com-
puter, Mercedes-AMG SLC 43) ...... 179
Temperature gauge ........................ 168
Warning lamp ................................. 213
Cooling
see Climate control
Copyright............................................. 30
Cornering light function
Display message ............................ 193
Function/notes ................................ 99
Cruise control
Cruise control lever ....................... 142
Deactivating ................................... 143
Display message ............................ 200
Driving system ............................... 142
Function/notes .............................142
Important safety notes .................. 142
Setting a speed .............................. 143
Storing and maintaining current
speed ............................................. 142
Cup holder
Center console .............................. 228
Important safety notes .................. 227
Customer Assistance Center
(CAC)..................................................... 28
Customer Relations Department....... 28
D
Dashboard
see Instrument cluster
Index7

Overview of climate control systems
General notes
Observe the settings recommended on the fol-lowing pages. The windows could otherwisefog up.
To prevent the windows from fogging up:
Rswitch off climate control only briefly
Rswitch on air-recirculation mode only briefly
Rswitch on the cooling with air dehumidifica-tion function
Rswitch on the defrost windshield functionbriefly, if required
Climate control regulates the temperature andthe humidity in the vehicle interior and filtersundesirable substances out of the air.
Climate control can only be operated when theengine is running. Optimum operation is only
achieved with the side windows and roofclosed.
iWhen the weather is warm, ventilate thevehicle for a brief period. This will speed upthe cooling process and the desired vehicleinterior temperature will be reached morequickly.
iThe integrated filter filters out most parti-cles of dust and soot and completely filtersout pollen. It also reduces gaseous pollu-tants and odors. A clogged filter reduces theamount of air supplied to the vehicle inte-rior. For this reason, you should alwaysobserve the interval for replacing the filter,which is specified in the Maintenance Book-let. As it depends on environmental condi-tions, e.g. heavy air pollution, the intervalmay be shorter than stated in the Mainte-nance Booklet.
Air-conditioning system control panel
Canada only
CSets the temperature (Ypage 111)
DSwitches the residual heat on or off (Ypage 114)

USA only
CSets the temperature (Ypage 111)
DSwitches the maximum cooling MAX COOL on or off (Ypage 113)

ECO start/stop function
During automatic engine switch-off, the cli-mate control system only operates at areduced capacity. If you require full climatecontrol capacity, the ECO start/stop functioncan be deactivated by pressing the ECO but-ton (Ypage 122).
Operating the climate control sys-
tems
Activating/deactivating climate con-
trol
General notes
When the climate control is switched off, theair supply and air circulation are also switchedoff. The windows could fog up. Therefore,switch off climate control only briefly
iActivate climate control primarily using theXbutton (Ypage 111).
Air-conditioning system
XTurn the SmartKey to positionHin the igni-tion lock (Ypage 118).
XTo switch on:turn airflow controlkclock-wise to the desired position (except position0) (Ypage 106).
XTo switch off:turn airflow controlkcoun-ter-clockwise to position0(Ypage 106).
3-zone automatic climate control
XTurn the SmartKey to positionHin the igni-tion lock (Ypage 118).
XTo switch on:press theXbutton.The indicator lamp in theXbutton lightsup. Airflow and air distribution are set toautomatic mode.
or
XPress thexbutton.The indicator lamp in thexbutton goesout. The previously selected settings arerestored.
XTo switch off:press thexbutton.The indicator lamp in thexbutton lightsup.
Switching cooling with air dehumidi-
fication on/off
General notes
If you deactivate the "Cooling with air-dehu-midification" function, the air inside the vehiclewill not be cooled. The air inside the vehiclewill also not be dehumidified. The windows canfog up more quickly. Therefore, deactivate thecooling with air-dehumidification function onlybriefly.
The "Cooling with air dehumidification" func-tion is only available when the engine is run-ning. The air inside the vehicle is cooled anddehumidified according to the temperatureselected.
Condensation may drip from the underside ofthe vehicle when it is in cooling mode. This isnormal and not a sign that there is a malfunc-tion.
Activating/deactivating
XTo activate:press theZorVbut-ton.The indicator lamp in theZorVbut-ton lights up.
XTo deactivate:press theZorVbut-ton.The indicator lamp in theZorVbut-ton goes out. The "Cooling with air dehumid-ification" function has a delayed switch-offfeature.
110Operating the climate control systems
Climate control

Problems with the "Cooling with air dehumidification" function
ProblemPossible causes/consequences andPPSolutions
The indicator lamp intheZorVbut-ton flashes three timesor remains off. The"Cooling with air dehu-midification" functioncannot be switched on.
Cooling with air dehumidification has been deactivated due to amalfunction.
XVisit a qualified specialist workshop.
Setting climate control to automatic
General notes
Automatic mode is only available with 3-zoneautomatic climate control.
In automatic mode, the set temperature ismaintained automatically at a constant level.The system automatically regulates the tem-perature of the dispensed air, the airflow andthe air distribution.
The automatic mode functions optimally whenthe "Cooling with air dehumidification" func-tion is activated. If necessary, cooling with airdehumidification can be deactivated.
If you deactivate the "Cooling with air-dehu-midification" function, the air inside the vehiclewill not be cooled. The air inside the vehiclewill also not be dehumidified. The windows canfog up more quickly. Therefore, deactivate thecooling with air-dehumidification function onlybriefly.
Automatic control
XTurn the SmartKey to positionHin the igni-tion lock (Ypage 118).
XSet the desired temperature.
XTo activate:press theXbutton.The indicator lamp in theXbutton lightsup. Automatic air distribution and airflow areactivated.
XTo switch to manual mode:press the

Switching the "windshield defrosting"
function on or off
XTurn the SmartKey to positionHin the igni-tion lock (Ypage 118).
XTo switch on:press thedbutton.The indicator lamp in thedbutton lightsup.
The climate control system switches to thefollowing functions:
Rhigh airflow
Rhigh temperature
Rair distribution to the windshield and frontside windows
Rair-recirculation mode off
XTo switch off:press thedbutton.The indicator lamp in thedbutton goesout. The previously selected settings arerestored. Air-recirculation mode remainsdeactivated.
or
XDual-zone automatic climate control: presstheXbutton.The indicator lamp in thedbutton goesout. Airflow and air distribution are set toautomatic mode.
MAX COOL maximum cooling
The MAX COOL function is only available invehicles for the USA.
MAX COOL is only operational when theengine is running.
XTo activate:press the

Problems with the rear window defroster
ProblemPossible causes/consequences andPPSolutions
The indicator lamp onthelbuttonflashes. The rear win-dow defroster has deac-tivated prematurely orcannot be activated.
The on-board voltage is too low because too many electrical con-sumers are switched on.
XSwitch off any consumers that are not required, e.g. readinglamps, interior lighting or the seat heating.When the battery is sufficiently charged, the rear windowdefroster can be activated again.
The roof is open.
XClose the roof.When the roof is closed, the rear window defroster can be activa-ted again.
Switching air-recirculation mode
on/off
General notes
If you switch on air-recirculation mode, thewindows can fog up more quickly, in particularat low temperatures. Only use air-recirculationmode briefly to prevent the windows from fog-ging up.
Activating/deactivating
XTurn the SmartKey to positionHin the igni-tion lock (Ypage 118).
XTo activate:press therbutton.The indicator lamp in therbutton lightsup.
iAir-recirculation mode is automaticallyactivated at high levels of pollution (dual-zone automatic climate control only) or athigh outside temperatures. When air-recir-culation mode is activated automatically,the indicator lamp in therbutton is notlit. Outside air is added after about30 minutes.
XTo deactivate:press therbutton.The indicator lamp in therbutton goesout.
iAir-recirculation mode deactivates auto-matically:
Rafter approximately five minutes at out-side temperatures below approximately41 ‡ (5 †)
Rafter approximately five minutes if coolingwith air dehumidification is deactivated
Rafter approximately 30 minutes at outsidetemperatures above approximately 41 ‡(5 †) if the "Cooling with air dehumidifi-cation" function is activated
Switching the residual heat on or off
General notes
The residual heat function is only available onvehicles for Canada.
It is possible to make use of the residual heatof the engine to continue heating the station-ary vehicle for up to 30 minutes after theengine has been switched off. The heatingtime depends on the set interior temperature.
Activating/deactivating
XTurn the SmartKey to position

Display messagesPossible causes/consequences andPPSolutions
Service RequiredService RequiredDo Not Shift GearsDo Not Shift GearsVisit DealerVisit Dealer
You cannot change the transmission position due to a malfunction.
A warning tone also sounds.
If transmission position[is selected:
XDrive to a qualified specialist workshop without shifting the trans-mission from position[.
If position^,\\or]is selected:
XNotify a qualified specialist workshop or breakdown service.
Reversing Not Pos‐Reversing Not Pos‐sible Servicesible ServiceRequiredRequired
You can no longer shift to transmission position^due to a mal-function.
Transmission positions],\\or[continue to be available.
A warning tone also sounds.
XVisit a qualified specialist workshop.
Transmission Mal‐Transmission Mal‐function Stopfunction StopA malfunction has occurred in the mechanical transmission compo-nents.
A warning tone also sounds. The transmission shifts automaticallyto position\\.
XPull over and stop the vehicle safely as soon as possible, payingattention to road and traffic conditions.
XShift the transmission to position].
XSecure the vehicle against rolling away (Ypage 134).
XNotify a qualified specialist workshop or breakdown service.
Stop Vehicle LeaveStop Vehicle LeaveEngine RunningEngine RunningWait TransmissionWait TransmissionCoolingCooling
The transmission has overheated. Pulling away can be temporarilyimpaired or not possible.
XPull over and stop the vehicle safely as soon as possible, payingattention to road and traffic conditions. Do not continue drivingunder any circumstances.
XWait until the display message disappears before pulling away.
Auxiliary BatteryAuxiliary BatteryMalfunctionMalfunctionThe auxiliary battery for the automatic transmission is no longerbeing charged.
XVisit a qualified specialist workshop at the next opportunity.
XUntil then, always shift the transmission to position]beforeyou switch off the engine.
XBefore leaving the vehicle, apply the electric parking brake.

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, particu-
larly 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 protec-
tive eyewear when opening. Open the cap
slowly to release pressure.
Example
XPark the vehicle on a level surface.
Only check the coolant level when the vehi-cle is on a level surface and the engine hascooled down.
XTurn the SmartKey to positionHin the igni-tion lock (Ypage 118).
On vehicles with KEYLESS-GO, press theStart/Stop button twice (Ypage 118).
XCheck the coolant temperature gage in themultifunction display.The coolant temperature must be below158 ‡ (70 †).
XTurn the SmartKey to position