climate control MERCEDES-BENZ CLA 2019 User Guide

Canada only
CSets the temperature, left (Ypage 117)
DSets climate control to automatic (Ypage 117)

ual. You will see the current settings of thevarious climate control functions.
DYNAMIC SELECT button (except
Mercedes-AMG vehicles)
You can choose between various drive programswith the DYNAMIC SELECT button(Ypage 129).
If you have selected drive programE:
Rwhen heating, the electrical heater booster isdeactivated and in the warming-up phaseheat output is reduced
Rthe rear window defroster running time isreduced
Depending on the configuration, climate set-tings may also be influenced in the drive pro-gramI.
If you have selected drive programCorS, cli-mate settings are not influenced.
ECO start/stop function
During automatic engine switch-off, the climatecontrol system only operates at a reduced capa-city. If you require the full climate control output,you can switch off the ECO start/stop functionby pressing the ECO button (Ypage 128).
Operating the climate control sys-
tems
Activating/deactivating climate con-
trol
General notes
When the climate control is switched off, the airsupply and air circulation are also switched off.The windows could fog up. Therefore, switch offclimate control only briefly
Air-conditioning system
XTurn the SmartKey to positionHin the igni-tion lock (Ypage 123).
XTo switch on:turn control

Problems with the "Cooling with air dehumidification" function
ProblemPossible causes/consequences andPPSolutions
The indicator lamp in theZbutton flashesthree times or remainsoff. The "Cooling with airdehumidification" func-tion cannot be switchedon.
Cooling with air dehumidification has been deactivated due to a mal-function.
XVisit a qualified specialist workshop.
Setting climate control to automatic
General notes
The automatic climate control function is onlyavailable in conjunction with dual-zone auto-matic climate control.
In automatic mode, the set temperature is main-tained automatically at a constant level. Thesystem automatically regulates the temperatureof the dispensed air, the airflow and the air dis-tribution.
The "Cooling with air dehumidification" functionis activated automatically in automatic mode.
Setting climate control to automatic
XTurn the SmartKey to positionDin the igni-tion lock (Ypage 123).
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 theOorJbutton.
or
XPress the

The climate control system switches to thefollowing functions:
Rhigh airflow
Rhigh temperature
Rair distribution to the windshield and frontside windows
Rair-recirculation mode off
iThe "Windshield defrosting" function auto-matically sets the blower level to the optimumdefrosting effect. As a result, the airflow mayincrease or decrease automatically after thedbutton is pressed.
iYou can adjust the blower level manuallywhile the "Windshield defrosting" function isin operation:
RAir-conditioning system: turn airflow con-trol

iIf you activate the residual heat function athigh temperatures, only the ventilation will beactivated. The blower runs at medium speed.
iYou cannot use the ventilation to cool thevehicle interior to a temperature lower thanthe outside temperature.
Activating/deactivating
XTurn the SmartKey to positionZin the igni-tion lock or remove it (Ypage 123).
XPress theKbutton.The indicator lamp in theKbutton lightsup or goes out.
The indicator lamp in the button indicates thatthe respective function is activated.
iResidual heat is deactivated automatically:
Rafter approximately 30 minutes
Rwhen the ignition is switched on
Rif the battery voltage drops
Air vents
Important safety notes
GWARNING
Very hot or very cold air can flow from the air
vents. This could result in burns or frostbite in
the immediate vicinity of the air vents. There
is a risk of injury.
Make sure that all vehicle occupants always
maintain a sufficient distance to the air out-
lets. If necessary, redirect the airflow to
another area of the vehicle interior.
In order to ensure the direct flow of fresh airthrough the air vents into the vehicle interior,please observe the following notes:
Rkeep the air inlet between the windshield andthe hood free of blockages, such as ice, snowor leaves.
Rnever cover the air vents or air intake grilles inthe vehicle interior.
iFor optimal climate control in the vehicle,open the air vents completely and set theadjusters to the central position.
Setting the air vents
CSide window defroster vent
DSide air vent
XTo open a side air vent:turn the adjuster inside air ventDto the left.
XTo close a side air vent:turn the adjuster inside air ventDclockwise as far as it will go.
iThe center and rear air vents are adjusted inthe same way.
Air vents121
Climate control
Z

GWARNING
Flammable materials introduced through
environmental influence or by animals can
ignite if in contact with the exhaust system or
parts of the engine that heat up. There is a risk
of fire.
Carry out regular checks to make sure that
there are no flammable foreign materials in
the engine compartment or in the exhaust
system.
General notes
During a cold start, the engine runs at higherspeeds to enable the catalytic converter toreach its operating temperature. The sound ofthe engine may change during this time.
Automatic transmission
XShift the transmission to position](Ypage 132).The transmission position indicator on themultifunction display shows](Ypage 131).
iYou can start the engine in transmissionpositions]and\\.
Starting procedure with the SmartKey
To start the engine using the SmartKey insteadof the Start/Stop button, pull the Start/Stopbutton out of the ignition lock.
XTurn the SmartKey to positionIin the igni-tion lock (Ypage 123) and release it as soonas the engine is running.
Starting procedure with the Start/Stop
button
The Start/Stop button can be used to start thevehicle manually without inserting the SmartKeyinto the ignition lock. The Start/Stop buttonmust be inserted in the ignition lock and theSmartKey must be in the vehicle. This mode forstarting the engine operates independently ofthe ECO start/stop automatic engine start func-tion.
You can start the engine if a valid SmartKey is inthe vehicle. Switch off the engine and alwaystake the SmartKey with you when leaving the
vehicle, even if you only leave it for a short time.Pay attention to the important safety notes.
XDepress the brake pedal and keep itdepressed.
XPress the Start/Stop button once(Ypage 123).The engine starts.
Starting procedure via smartphone
Observe the important safety notes on startingthe engine (Ypage 124).
You can also start your engine via your smart-phone from outside the vehicle. In this case, thepreviously selected climate control setting isactivated. In this way you can cool or heat theinterior of the vehicle before starting the jour-ney.
Only start the engine via your smartphone if it issafe to start and run the engine where your vehi-cle is parked.
Observe the legal stipulations in the area whereyour vehicle is parked. Engine start via smart-phone may be limited to certain countries orregions.
You can execute a maximum of two consecutivestarting attempts via your smartphone. If youinsert the SmartKey into the ignition lock, youcan carry out two more starting attempts.
Once you have started the engine, you canswitch the engine off via your smartphone at anytime.
You can only start the engine via your smart-phone if:
Rthe SmartKey is in the ignition lock
Rpark position]is selected
Rthe accelerator pedal is not depressed
Rthe alarm for the anti-theft alarm system isnot set
Rthe panic alarm is not activated
Rthe hazard warning lamps are switched off
Rthe hood is closed
Rthe doors are closed and locked
Rthe windows and sliding sunroof are closed
Also make sure that:
Rthe fuel tank is sufficiently filled
Rthe starter battery has been sufficientlycharged
Driving125
Driving and parking
Z

ProblemPossible causes/consequences andPPSolutions
The engine does notstart. You cannot hearthe starter motor.
The on-board voltage is too low because the battery is too weak ordischarged.
XJump-start the vehicle (Ypage 282).
If the engine does not start despite attempts to jump-start it:
XConsult a qualified specialist workshop.
The starter motor was exposed to a thermal load that was too high.
XAllow the starter motor to cool down for approximately two minutes.
XTry to start the engine again.
If the engine still does not start:
XConsult a qualified specialist workshop.
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 temperaturegauge shows a valueabove 248 ‡ (120 †).The coolant warninglamp may also be on anda warning tone maysound.
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 263). Observe the warning notesas you do so and add coolant if necessary.
Notes on towing vehicles
The vehicle is not suitable for attaching tow barsystems, such as those used for flat towing ordinghy towing.
Attaching or using tow bar systems may result indamage to the vehicle.
When towing a vehicle with tow bar systems,safe driving characteristics cannot be guaran-teed for the towing vehicle or the towed vehicle.
The vehicle/trailer combination may swerve.
Observe the permissible towing methods(Ypage 287) and the notes on towing with bothaxles on the ground (Ypage 286).
DYNAMIC SELECT button (all vehicles
except Mercedes-AMG vehicles)
Use the DYNAMIC SELECT button to change thedrive program. Depending on the drive programselected the following vehicle characteristicswill change:
Rthe drive (engine and transmission manage-ment)
Rthe suspension (vehicles with damping sys-tem or AMG adaptive sport suspension sys-tem)
Rthe sound of the exhaust system (vehicleswith sports exhaust system)
Rthe steering
Rthe availability of the ECO start/stop function
Rthe climate control
Each time you start the engine with the Smart-Key or the Start/Stop button, drive programCis
DYNAMIC SELECT button (all vehicles except Mercedes-AMG vehicles)129
Driving and parking
Z

Drive program I (Individual)
In drive programIthe following properties of thedrive program can be selected:
Rthe drive (engine and transmission manage-ment)
Rthe suspension (vehicles with damping sys-tem or AMG adaptive sport suspension sys-tem)
Rthe steering
Rthe availability of the ECO start/stop function
Rthe climate control
Information about configuring drive programIwith the multimedia system can be found in theDigital Operator's Manual.
iTo permanently select the gears in driveprogramIusing the steering wheel paddleshifters, select theM(manual) setting for thedrive.
Drive program E (Economy)
Drive programEis characterized by the follow-ing:
Rcomfort-oriented engine settings.
Roptimal fuel consumption resulting from theautomatic transmission shifting up sooner.
Rthe vehicle pulls away more gently in forwardand reverse gears, unless the acceleratorpedal is depressed fully.
Rthe vehicle has improved driving stability, forexample on slippery road surfaces.
Rthe automatic transmission shifting upsooner. This results in the vehicle being drivenat lower engine speeds and the wheels beingless likely to spin.
Rgliding mode is activated automatically whenengine-internal conditions are fulfilled andthe accelerator is not depressed. At the sametime the transmission’s clutch opens and thevehicle rolls freely using its kinetic energy. Asa result great distances can be completedwithout the engine brake and fuel consump-tion reduced.
iThe availability of gliding mode depends onvarious factors, including the following:
Rthe engine and transmission temperature
Rthe downhill gradient
Rthe vehicle speed
Rperforming regular adaptation functions
When you depress the brake pedal, glidingmode is deactivated, depending on pedalpressure.
When you activate cruise control or ActiveDistance Assist DISTRONIC, gliding mode isnot available.
Mercedes-AMG vehicles
Drive program I (Individual)
In drive programIthe following properties of thedrive program can be selected:
Rthe drive (engine management)
Rthe transmission management
Rthe suspension (vehicles with AMG adaptivesport suspension system)
RESP®
Information about configuring drive programIwith the multimedia system can be found in theDigital Operator's Manual.
Drive program C (Comfort)
Drive programCis characterized by the follow-ing:
Rthe vehicle delivers comfortable, economicalhandling characteristics.
Rthe vehicle pulls away more gently in forwardand reverse gears, unless the acceleratorpedal is depressed fully.
Rthe vehicle has improved driving stability, forexample on slippery road surfaces.
Roptimal fuel consumption resulting from theautomatic transmission shifting up sooner.The vehicle is driven in the low engine speedrange and the wheels are less likely to spin.
Rgliding mode is available.
Rthe ECO start/stop function is available.
Drive program S (Sport)
Drive programSis characterized by the follow-ing:
Rthe vehicle exhibits sporty driving character-istics.
Rthe automatic transmission shifts up later.The fuel consumption possibly being higheras a result of the later automatic transmissionshift points.
Rthe suspension exhibits stiff springing anddamping settings (vehicles with AIR adaptivesport suspension system).
136Automatic transmission
Driving and pa rking

Favorites button
You can assign predefined functions using the}favorites button and call them up by press-ing the button (Ypage 233).
Favorites
Calling up and exiting favorites
XTo call up:press the}button on the con-troller.
XSelect a favorite, e.g.VehicleVehicle.The favorites are displayed.
XTo exit:press the}button again.
Adding favorites
Adding predefined favorites
XPress the}button.
XCOMAND:slide6the controller.
XAudio 20:slide5or6the controller.The menu bar is displayed.
XSelectReassignReassign.The categories are displayed.
XSelect a category.The favorites are displayed.
XSelect a favorite.
XCOMAND:to add the favorite to the desiredposition, turn and press the controller.If a favorite has already been added at thisposition, it will be overwritten.
XAudio 20:to add the favorite to the desiredposition, turn, slide5or6and press thecontroller.If a favorite has already been added at thisposition, it will be overwritten.
Adding your own favorites
You can add climate control as a favorite, forexample.
XSelectVehicleVehicle{Vehicle SettingsVehicle Settings.
XPress and hold the}button until thefavorites are displayed.
XAdd a favorite to the desired position.If a favorite has already been added at thisposition, it will be overwritten.
Navigation mode
Important safety notes
GWARNING
If you operate information systems and com-
munication equipment integrated in the vehi-
cle when driving, you may be distracted from
the traffic situation. You could also lose con-
trol of the vehicle. There is a risk of an acci-
dent.
Only operate this equipment when the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
You must observe the legal requirements for thecountry in which you are currently driving whenoperating the navigation system.
General notes
Among other things, correct functioning of thenavigation system depends on GPS reception. Incertain situations, GPS reception may beimpaired, there may be interference or theremay be no reception at all, e.g. in tunnels orparking garages.
Audio 20 is equipped with Garmin®MAP PILOT(see the manufacturer's operating instructions).
The Garmin®MAP PILOT operating instructionsare stored on the SD card as a PDF file. The SDcard box contains a quick guide.
The following descriptions apply to navigationwith COMAND. Further information can befound in the Digital Operator's Manual.
Selecting a route type and route options
Multimedia system:
XSelectNaviNavi{NavigationNavigation.The map shows the vehicle's current position.
XSlide6the controller.
XSelectOptionsOptions{Route SettingsRoute Settings.
Notes for route types:
REco RouteEco Route
RDynamic Traffic RouteDynamic Traffic Route
Operating system233
Multimedia system
Z

When handling washer fluid, observe the impor-tant safety notes on service products(Ypage 319).
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.
The instruction label regarding the refrigeranttype used can be found on the left, on the under-side of the hood.
!Only the refrigerant R‑134a and the PAG oilapproved by Mercedes-Benz may be used.The approved PAG oil may not be mixed withany other PAG oil that is not approved forR-134a refrigerant. Otherwise, the climatecontrol system may be damaged.
Service work, such as refilling with refrigerant orreplacing component parts, may only be carriedout by a qualified specialist workshop. All appli-cable regulations, as well as SAE standard J639,must be adhered to.
Always have work on the climate control systemcarried out at a qualified specialist workshop.
Refrigerant instruction label
Example: refrigerant instruction label
CSymbol
DRefrigerant filling capacity