battery MERCEDES-BENZ CLA 2019 User Guide

Doors
Important safety notes
GWARNING
If children are left unsupervised in the vehicle,
they could:
Roperate the vehicle's equipment
Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parking brake
Rshift the automatic transmission out of park
position]
Rstart the engine
There is a risk of an accident and injury.
Never leave children or animals unattended in
the vehicle.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. This
also applies for the Digital Vehicle Key if the
"Digital Vehicle Key" function is activated via
Mercedes me connect.
You should preferably place luggage or loads inthe cargo compartment. Observe the loadingguidelines (Ypage 239).
Unlocking and opening doors from
the inside
!The side windows will not open/close if thebattery is discharged or if the side windowshave iced up. It will then not be possible toclose the door. Do not attempt to force thedoor closed. You could otherwise damage thedoor or the side window.
When a door is opened, the side window on thatside opens slightly. When the door is closed, theside window closes again.
XTo unlock and open a front door:pull doorhandleD.If the door is locked, locking knobCpops up.The door is unlocked and opens.
XTo unlock a rear door:pull up lockingknobC.The door is unlocked and can be opened.
XTo open a rear door:pull door handleD.
You can open a door from inside the vehicleeven if it has been locked. You can only open therear doors from inside the vehicle if they are notsecured by the child-proof locks (Ypage 60).
If the vehicle has previously been locked withthe SmartKey from the outside, opening a doorfrom the inside will trigger the anti-theft alarmsystem. Switch off the alarm (Ypage 68).
Centrally locking and unlocking the
vehicle from the inside
You can centrally lock or unlock the vehicle fromthe inside. This can be useful if you wish to lockthe vehicle before pulling away, for example.
XTo unlock:press buttonC.
XTo lock:press buttonD.If all the doors and the trunk lid are closed, thevehicle locks.
76Doors
Opening and closing

Deactivating
XPress and hold the closing button on the tail-gate until two short tones sound.
Emergency release for the trunk
General notes
!The trunk lid swings upwards when opened.Therefore, make sure that there is sufficientclearance above the trunk lid.
The opening dimensions of the trunk lid can befound in the "Vehicle data" section(Ypage 325).
If the trunk lid can no longer be unlocked:
Rusing the SmartKey, or
Rusing the remote operating switch in the doorcontrol panel:
Use the emergency release inside the trunk lid.
You can reach the emergency release via thetrunk.
Opening
XFold the rear seat backrest forwards(Ypage 242).
XInsert a suitable toolD, e.g. a screwdriver,into openingCin the paneling.The trunk lid is released.
XOpen the trunk lid.
Emergency release button
You can open the trunk lid from inside the vehi-cle with the emergency release button.
XPress emergency release buttonCbriefly.The trunk lid unlocks and opens.
The trunk lid can be unlocked and opened withthe trunk lid emergency release when the vehi-cle is stationary or while driving.
The trunk lid emergency release does not openthe trunk lid if the battery is disconnected ordischarged.
Trunk lid emergency release light:
REmergency release buttonCflashes for30 minutes after the trunk lid is opened.
REmergency release buttonCflashes for60 minutes after the trunk lid is closed.
Side windows
Important safety notes
GWARNING
While opening the side windows, body parts
could become trapped between the side win-
dow and the door frame as the side window
moves. There is a risk of injury.
Make sure that nobody touches the side win-
dow during the opening procedure. If some-
body becomes trapped, release the switch or
pull the switch to close the side window again.
GWARNING
While closing the side windows, body parts in
the closing area could become trapped. There
is a risk of injury.
When closing make sure that no parts of the
body are in the closing area. If somebody
becomes trapped, release the switch or press
the switch to open the side window again.
82Side windows
Opening and closing

ProblemPossible causes/consequences andPPSolutions
A side window cannot beclosed because it isblocked by objects, e.g.leaves in the windowguide.
XRemove the objects.
XClose the side window.
A side window cannot beclosed and you cannotsee the cause.
If a side window is obstructed during closing and reopens againslightly:
XImmediately after the window blocks, pull the corresponding switchagain until the side window has closed.The side window is closed with increased force.
If a side window is obstructed again during closing and reopens againslightly:
XImmediately after the window blocks, pull the corresponding switchagain until the side window has closed.The side window is closed without the automatic reversing feature.
The side windows cannotbe opened or closedusing the convenienceopening/closing fea-ture.
The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 73) and replace it if necessary(Ypage 73).
Panorama roof with power tilt/sliding
panel
Important safety notes
In the following section, the term "sliding sun-roof" refers to the panorama roof with powertilt/sliding panel.
GWARNING
While opening and closing the sliding sunroof,
body parts in close proximity could become
trapped. There is a risk of injury.
Make sure that no body parts are in close
proximity during the opening and closing pro-
cedures.
If somebody becomes trapped:
Rrelease the switch immediately, or
Rduring automatic operation, push the
switch briefly in any direction
The opening or closing procedure will be stop-
ped.
GWARNING
If children operate the sliding sunroof they
could become trapped, particularly if they are
left unsupervised. There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
GWARNING
At high speeds the raised sliding sunroof auto-
matically lowers slightly at the rear. This could
trap you or other persons. There is a risk of
injury. Make sure that nobody reaches into
the sweep of the sliding sunroof whilst the
vehicle is in motion.
If somebody becomes trapped, immediately
pull back the sliding sunroof switch. The slid-
ing sunroof lifts during opening.
!Only open the sliding sunroof if it is free ofsnow and ice. Otherwise, malfunctions mayoccur.
86Panorama roof with power tilt/sliding panel
Opening and closing

!If the sliding sunroof still cannot be opened or closed as a result of a malfunction, contact aqualified specialist workshop.
ProblemPossible causes/consequences andPPSolutions
The panorama roof withpower tilt/sliding panelcannot be closed andyou cannot see thecause.
If the panorama roof with power tilt/sliding panel is obstructed duringclosing and reopens again slightly:
XImmediately after it blocks, pull theWswitch down again to thepoint of resistance until the panorama roof with power tilt/slidingpanel is closed.The panorama roof with power tilt/sliding panel is closed with moreforce.
If the panorama roof with power tilt/sliding panel is obstructed againduring closing and reopens again slightly:
XImmediately after it blocks, pull theWswitch down again to thepoint of resistance until the panorama roof with power tilt/slidingpanel is closed.The panorama roof with power tilt/sliding panel is closed withoutthe automatic reversing feature.
The panorama roof withpower tilt/sliding panelcannot be opened orclosed using the conve-nience opening/closingfeature.
The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 73) and replace it if necessary(Ypage 73).
90Panorama roof with power tilt/sliding panel
Opening and closing

The three red indicator lamps in the button indi-cate the heating level you have selected.
The system automatically switches down fromlevel3to level2after approximately eightminutes.
The system automatically switches down fromlevel2to level1after approximately tenminutes.
The system automatically switches off approx-imately 20 minutes after it is set to level1.
XTurn the SmartKey to positionGorHin theignition lock (Ypage 123).
XTo switch on:press buttonCrepeatedlyuntil the desired heating level is set.
XTo switch off:press buttonCrepeatedlyuntil all the indicator lamps go out.
iIf the battery voltage is too low, the seatheating may switch off.
Problems with the seat heating
ProblemPossible causes/consequences andPPSolutions
The seat heating hasswitched off prematurelyor cannot be switchedon.
The on-board voltage is too low because too many electrical consum-ers are switched on.
XSwitch off electrical consumers that you do not need, such as therear window defroster or interior lighting.Once the battery is sufficiently charged, the seat heating will switchback on automatically.
Steering wheel
Important safety notes
GWARNING
You could lose control of your vehicle if you do
the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt
before starting the engine.
GWARNING
Children could injure themselves if they
adjust the steering wheel. There is a risk of
injury.
Never leave children unsupervised in the vehi-
cle.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. This
also applies for the Digital Vehicle Key if the
"Digital Vehicle Key" function is activated via
Mercedes me connect.
Adjusting the steering wheel
GWARNING
If the steering wheel is unlocked while the
vehicle is in motion, it could change position
unexpectedly. This could cause you to lose
control of the vehicle. There is a risk of an
accident.
96Steering wheel
Seats, steering wheel and mirrors

take precedence over the daytime runninglamps.
USA only:
The daytime running lamps improve the visibilityof your vehicle during the day. To do this, thedaytime running lamps function must beswitched on using the on-board computer(Ypage 189).
If the engine is running and you turn the lightswitch to the`orXposition, the manualsettings take precedence over the daytime run-ning lamps.
Low-beam headlamps
Even if the light sensor does not detect that it isdark, the parking lamps and low-beam head-lamps switch on when the ignition is switched onand the light switch is set to theXposition.This is a particularly useful function in the eventof rain and fog.
XTo switch on the low-beam headlamps:turn the SmartKey to positionHin the igni-tion lock or start the engine.
XTurn the light switch toX.The greenXindicator lamp in the instru-ment cluster lights up.
Rear fog lamp
The rear fog lamp improves visibility of yourvehicle for the traffic behind in the event of thickfog. Please take note of the country-specificregulations for the use of rear fog lamps.
XTo switch on the rear fog lamp:turn theSmartKey in the ignition lock to positionHorstart the engine.
XTurn the light switch toXorX.
XPress the^button.The yellow^indicator lamp in the instru-ment cluster lights up.
XTo switch off the rear fog lamp:press the^button.The yellow^indicator lamp in the instru-ment cluster goes out.
iWhen the rear fog lamp is switched on, thecenter brake lamp in the tail lamp switches offdue to a legal requirement.
Parking lamps
!If the battery charge is very low, the parkinglamps or standing lamps are automaticallyswitched off to enable the next engine start.Always park your vehicle safely and in a well lit
area, in accordance with the relevant legalstipulations. Avoid using the`parkinglamps over a period of several hours. If pos-sible, switch on the right-handdor left-handcstanding lamps.
XTo switch on:turn the light switch to`.The green`indicator lamp in the instru-ment cluster lights up.
Standing lamps
Switching on the standing lamps ensures thecorresponding side of the vehicle is illuminated.
XTo switch on the standing lamps:theSmartKey is not in the ignition lock or it is inpositionZin the ignition lock.
XTurn the light switch toc(left-hand side ofthe vehicle) ord(right-hand side of thevehicle).
Combination switch
XTo indicate briefly:press the combinationswitch briefly to the pressure point in thedirection of arrowDor

Interior lighting control
General notes
In order to prevent the vehicle's battery fromdischarging, the interior lighting functions areautomatically deactivated after some timeexcept when the SmartKey is in positionHinthe ignition lock.
The color and brightness of the ambient lightingare set via the multimedia system (see DigitalOperator's Manual).
Automatic interior lighting control
XTo switch on:set the switch to center posi-tion

If the battery voltage is too low, the rear windowdefroster may switch off.Activating/deactivating
XTurn the SmartKey to positionHin the igni-tion lock (Ypage 123).
XPress thelbutton.The indicator lamp in thelbutton lightsup or goes out.
Problems with the rear window defroster
ProblemPossible causes/consequences andPPSolutions
The rear windowdefroster has deactiva-ted prematurely or can-not be activated.
The battery has not been sufficiently charged.
XSwitch off any consumers that are not required, e.g. reading lamps,interior lighting or the seat heating.When the battery is sufficiently charged, the rear window defrostercan be activated again.
Switching air-recirculation mode
on/off
General notes
You can deactivate the flow of fresh air ifunpleasant odors are entering the vehicle fromoutside. The air already inside the vehicle willthen be recirculated.
If you switch on air-recirculation mode, the win-dows can fog up more quickly, in particular atlow temperatures. Only use air-recirculationmode briefly to prevent the windows from fog-ging up.
The operation of air-recirculation mode is thesame for all control panels.
Activating/deactivating
XTurn the SmartKey to positionHin the igni-tion lock (Ypage 123).
XTo activate:press the

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