Get Opening and closing Guide for Mercedes CLA 4 Door Second Generation (2019-2024)

SmarSmartKeytKey

OvOverervieview of kew of key functionsy functions

WARNINGARNING Risk of accident and injury due

to children le unattended in the vehicle

If children are le unsupervised in the vehicle,

they could, in particular:

open doors, thereby endangering other

persons or road users.

get out and be struck by oncoming trac.

operate vehicle equipment and become

trapped, for example.

In addition, the children could also set the

vehicle in motion, for example by:

releasing the parking brake.

changing the transmission position.

starting the vehicle.

Never leave children unattended in the

vehicle.

When leaving the vehicle, always take the

SmartKey with you and lock the vehicle.

Keep the vehicle SmartKey out of reach

of children.

NOOTETE Damage to the SmartKey caused by

magnetic elds

Keep the SmartKey away from strong

magnetic elds.

Vehicle SmartKey with panic alarm

Locks

Indicator lamp

Unlocks

Opens the trunk lid

Panic alarm

If indicator lamp 2 does not light up aer

pressing the Ü or ß button, the battery

is weak or possibly discharged. Replace the

battery as soon as possible.

Replace the key battery (/ page 68).

The key locks and unlocks the following compo-

nents:

Doors

Fuel ller ap

Trunk lid

If the vehicle is not opened within approximately

40 seconds aer unlocking, it locks again. Anti-

the protection is activated again.

Do not keep the key together with electronic devi-

ces or metal objects. This can aect the key's

functionality.

6666

Opening and closing

AActivctivating/deactivating/deactivating tating the acoushe acoustic loctic lockingking vvereri-i-

cationcation signalsignal

Multimedia system:

Settings

Vehicle

Activate or deactivate Acoustic Lock.

ArArming/disarming/disarming tming the panic alarmhe panic alarm

RReqequiruirements:ements:

The vehicle is switched o.

TTo activo activatate:e: press button 1 for approximately

one second.

A visual and audible alarm is triggered.

TTo deactivo deactivatate:e: briey press button 1 again.

Press the start/stop button.

A SmartKey belonging to the vehicle must be

detected in the vehicle.

Changing tChanging the unloche unlocking seking settingsttings

Possible unlocking functions of the SmartKey:

Central unlocking

Unlocking the driver's door and fuel ller ap

TTo switco switch beh betwtween seeen settings:ttings: press the Ü

and ß buttons simultaneously for approx-

imately six seconds until the indicator lamp

ashes twice.

Options if the unlocking function for the driver's

door and fuel ller ap has been selected:

To unloco unlock tk the vhe vehicle centrehicle centrallyally:: press the

Ü button twice.

Vehicles witehicles with KEYLESS-GO:h KEYLESS-GO: if you touch the

inner surface of the door handle on the driv-

er's door, only the driver's door and the fuel

ller ap are unlocked.

DeactivDeactivating tating the function of the function of the Smarhe SmartKeytKey

VVehicles witehicles with KEYLESS-GO:h KEYLESS-GO: if you deactivate the

function of the SmartKey, the KEYLESS-GO func-

tions are also deactivated. Access or drive author-

ization by KEYLESS-GO is then no longer possible

with that particular SmartKey. Activate the func-

tion of the SmartKey so that all its functions will

again be available.

You can also deactivate the function of the Smart-

Key to reduce the energy consumption of the

SmartKey if you do not use the vehicle or a Smart-

Key for an extended period of time.

TTo deactivo deactivatate:e: press the ß button on the

SmartKey twice in quick succession.

The SmartKey indicator lamp ashes twice

briey and lights up once.

TTo activo activatate:e: press any button on the SmartKey.

When the vehicle is started with the SmartKey

in the marked space of the center console,

the function of the SmartKey is automatically

activated (/ page 131).

Opening and closing

RRemoemoving/inserving/inserting tting the emerghe emergency keyency key

RRemoemoving tving the emerghe emergency keyency key

Press release button 1.

Emergency key

2 is pushed out slightly.

Pull out emergency key 2 until it engages in

the intermediate position.

Press release button 1 again and fully

remove emergency key

Inser

Inserting tting the emerghe emergency keyency key

Press release button 1.

Insert emergency key 2 to the intermediate

position or fully until it engages.

You can use the intermediate position of

emergency key 2 to attach the SmartKey to

a key ring.

RReplacing teplacing the Smarhe SmartKetKey batty batteryery

DANANGERGER Risk of fatal injuries due to swal-

lowing batteries

Batteries contain toxic and corrosive substan-

ces. Swallowing batteries may cause severe

internal burns to occur within two hours.

There is a risk of fatal injury.

Keep batteries out of the reach of chil-

dren.

If the cap and/or the battery compart-

ment does not close securely, do not use

the SmartKey any longer and keep out of

the reach of children.

If batteries are swallowed, seek medical

attention immediately.

ENVIR

ENVIRONMENTONMENTAL NOAL NOTETE Environmental

damage due to improper disposal of bat-

teries

Batteries contain pollutants. It is

illegal to dispose of them with the household

rubbish.

Dispose of batteries in an

environmentally responsible manner.

Take discharged batteries to a qualied

specialist workshop or to a collection

point for used batteries.

RReqequiruirements:ements:

You require a CR 2032 3 V cell battery.

Mercedes-Benz recommends that you have the

battery replaced at a qualied specialist work-

shop.

Remove the emergency key (/ page 68).

6868

Opening and closing

Press release knob 2 down fully and slide

cover

1 in the direction of the arrow.

Fold out cover 1 in the direction of the arrow

and remove.

Remove battery compartment 3 and take

out the discharged battery.

Insert the new battery into battery compart-

ment 3. Observe the positive pole marking in

the battery compartment and on the battery

when doing this.

Push in battery compartment 3.

Re-attach cover 1 and push it until it

engages.

PrProblems witoblems with th the Smarhe SmartKeytKey, tr, troubleshoooubleshootingting

YYou can no longou can no longer locer lock or unlock or unlock tk the vhe vehicleehicle

Possible causes:

The SmartKey battery is weak or discharged.

Check the battery using the indicator lamp

(/ page 66).

Replace the SmartKey battery, if necessary

(/ page 68).

Use the replacement SmartKey.

Use the emergency key to lock or unlock

(/ page 72).

Have the SmartKey checked at a qualied spe-

cialist workshop.

Ther

There is inte is interferfererence frence from a powom a powererful rful radio signaladio signal

soursourcece

Possible causes if the function of the SmartKey is

impaired:

High voltage power lines

Mobile phones

Electronic devices (notebooks, tablets)

Shielding due to metal objects or induction

loops for electrical gate systems or automatic

barriers

Make sure that there is sucient distance

between the SmartKey and the potential

source of interference.

You havou have lose lost a Smart a SmartKeytKey

Have the SmartKey deactivated at a qualied

specialist workshop.

If necessary, have the mechanical lock

replaced as well.

Opening and closing

DoorsDoors

UUnlocnlocking/opening tking/opening the doorhe doors frs from tom the insidehe inside

TTo unloco unlock and open a frk and open a front dooront door:: pull door

handle

TTo unloco unlock a rk a rear doorear door:: pull the rear door han-

dle.

TTo open a ro open a rear doorear door:: pull the rear door handle

again.

CentrCentrallally locy locking and unlocking and unlocking tking the vhe vehicle frehicle fromom

tthe insidehe inside

TTo unloco unlock:k: press button 1.

TTo loco lock:k: press button 2.

The red indicator lamp on button

2 lights up

once the vehicle is locked.

The buttons are also on the front passenger

door.

This does not lock or unlock the fuel ller ap.

The vehicle is not unlocked:

If you have locked the vehicle using the Smart-

Key

If you have locked the vehicle using KEYLESS-

LocLocking/unlocking/unlocking tking the vhe vehicle witehicle with KEYLESS-GOh KEYLESS-GO

RReqequiruirements:ements:

The SmartKey is outside the vehicle.

The distance between the SmartKey and the

vehicle does not exceed 3  (1 m).

The driver's door and the door on which the

door handle is used are closed.

NOTETE Damage to the vehicle caused by

unintentionally opening the trunk lid

When using an automatic car wash

When using a high pressure cleaner

Deactivate the function of the SmartKey

in these situations.

7070

Opening and closing

Make sure that the SmartKey is at a min-

imum distance of 10  (3 m) away from

the vehicle.

Observe the notes:

On washing the vehicle in a car wash

(/ page 266)

On using a high pressure cleaner

(/ page 268)

TTo unloco unlock tk the vhe vehicle:ehicle: touch the inner surface

of the door handle.

TTo loco lock tk the vhe vehicle:ehicle: touch sensor surface 1

or 2.

ConvConvenience closing:enience closing: touch recessed sensor

surface 2 until the closing process has been

completed.

Further information on convenience closing

(/ page 80).

If you open the trunk lid from outside, the trunk

lid is automatically unlocked.

PrProblems witoblems with KEYLESS-GO, trh KEYLESS-GO, troubleshoooubleshootingting

YYou can no longou can no longer locer lock or unlock or unlock tk the vhe vehicle usingehicle using

KEYLESS-GOKEYLESS-GO

Possible causes:

The function of the SmartKey has been deacti-

vated.

The SmartKey battery is weak or discharged.

Activate the function of the SmartKey

(/ page 67).

Check the battery using the indicator lamp

(/ page 66).

Replace the SmartKey battery, if necessary

(/ page 68).

Use the replacement SmartKey.

Use the emergency key to lock or unlock

(/ page 72).

Opening and closing

Have the vehicle and SmartKey checked at a

qualied specialist workshop.

Ther

There is inte is interferfererence frence from a powom a powererful rful radio signaladio signal

soursourcece

Possible causes if the function of KEYLESS-GO is

impaired:

High voltage power lines

Mobile phones

Electronic devices (notebooks, tablets)

Shielding due to metal objects or induction

loops for electrical gate systems or automatic

barriers

Make sure that there is sucient distance

between the SmartKey and the potential

source of interference.

AActivctivating/deactivating/deactivating tating the authe automatic locomatic locking fking fea-ea-

ture

The vehicle is locked automatically when the vehi-

cle is switched on and the wheels are turning

faster than walking pace.

TTo activo activatate:e: press and hold button 2 for

approximately ve seconds until an acoustic

signal sounds.

TTo deactivo deactivatate:e: press and hold button 1 for

approximately ve seconds until an acoustic

signal sounds.

The red indicator lamp on button

2 lights up

once the vehicle is locked.

In the following situations, there is a danger of

being locked out when the function is activated:

While the vehicle is being tow-started or

pushed

If the vehicle is being tested on a roller dyna-

mometer

LocLocking/unlocking/unlocking tking the vhe vehicle witehicle with th the emer-he emer-

ggency keyency key

LocLocking/unlocking/unlocking tking the drhe driviver's door witer's door with th thehe

emergemergency keyency key

If you wish to lock the vehicle entirely using

the emergency key, rst press the button for

locking from the inside while the driver's door

is open. Then proceed to lock the driver's

door using the emergency key.

7272

Opening and closing

Remove the emergency key (/ page 68).

Insert the emergency key as far as it will go

into opening 1 in the cover.

Pull and hold the door handle.

Pull the cover on the emergency key as

straight as possible away from the vehicle until

it releases.

Release the door handle.

TTo unloco unlock:k: turn the emergency key counter-

clockwise to position 1.

TTo loco lock:k: turn the emergency key clockwise to

position 1.

Carefully press the cover onto the lock cylin-

der until it engages and is seated rmly.

Loc

Locking tking the frhe front passengont passenger door and rer door and rear doorsear doors

Insert a suitable object, e.g. the emergency

key, into opening 1 on the door lock.

TTo loco lock tk thehe le-handle-hand side of tside of the vhe vehicle:ehicle: turn

the emergency key counter-clockwise as far

as it will go.

Opening and closing

TTo loco lock tk the rhe right-hand side of tight-hand side of the vhe vehicle:ehicle: turn

the emergency key clockwise as far as it will

go.

If the locked door is then closed, it can no longer

be opened from the outside.

TTrrunkunk

Opening tOpening the trhe trunk lidunk lid

DANANGERGER Risk of exhaust gas poisoning

Combustion engines emit poisonous exhaust

gases such as carbon monoxide. Exhaust

gases can enter the vehicle interior if the trunk

lid is open when the vehicle is running, espe-

cially if the vehicle is in motion.

Always switch o the vehicle before

opening the trunk lid.

Never drive with the trunk lid open.

NOOTETE Damage to the trunk lid by obsta-

cles above the vehicle

The trunk lid swings upwards when it is

opened.

Therefore, make sure that there is su-

cient clearance above the trunk lid.

VVehicles witehicles with HANDS-FREE Ah HANDS-FREE ACCESS:CCESS: Make a

kicking movement with your foot below the

bumper (/ page 76).

Pull remote operating switch 1 until the

trunk lid opens.

Press and hold the p button on the Smart-

Key.

7474

Opening and closing

With the trunk lid unlocked, press the top of

Mercedes star 2.

To open, pull on the folded-out Mercedes star

when the rear view camera is activated.

Closing tClosing the trhe trunk lidunk lid

WARNINGARNING Risk of injury from unsecured

items in the vehicle

If objects, luggage or loads are not secured or

not secured suciently, they could slip, tip

over or be thrown around and thereby hit vehi-

cle occupants.

There is a risk of injury, particularly in the

event of sudden braking or a sudden change

in direction.

Always stow objects in such a way that

they cannot be thrown around.

Before the journey, secure objects, lug-

gage or loads against slipping or tipping

over.

Observe the notes on loading the vehicle.

NNoottes on closing tes on closing the trhe trunk lid:unk lid: your vehicle is

equipped with automatic SmartKey recognition. If

a SmartKey belonging to the vehicle is detected in

the vehicle, the trunk lid will not be locked and will

pop open again.

Note that the trunk lid will not be locked if the fol-

lowing situation occurs:

You have locked the vehicle and close the

trunk lid while a SmartKey belonging to the

vehicle is inside the vehicle.

and

A second SmartKey belonging to the vehicle is

not detected outside the vehicle.

Automatic SmartKey recognition is only an aid

and is not a substitute for your attentiveness.

Before locking, ensure that at least one

SmartKey belonging to the vehicle is outside

the vehicle.

TTo close to close the trhe trunk lid:unk lid: pull the trunk lid down-

wards using the handle recess and push it

closed.

Opening and closing

HANDS-FREE AHANDS-FREE ACCESS functionCCESS function

With HANDS-FREE ACCESS you can open the

trunk lid by performing a kicking movement under

the bumper.

Observe the notes when opening the trunk lid

(/ page 74).

WARNINGARNING Risk of burns caused by a hot

exhaust system

The vehicle exhaust system can become very

hot. If you use HANDS-FREE ACCESS, you

could burn yourself by touching the exhaust

system.

Always ensure that you only make a kick-

ing movement within the detection range

of the sensors.

NOOTETE Damage to the vehicle caused by

unintentionally opening the trunk lid

When using an automatic car wash

When using a high pressure cleaner

Deactivate the function of the SmartKey

in these situations.

Make sure that the SmartKey is at a min-

imum distance of 10  (3 m) away from

the vehicle.

When making the kicking movement, make sure

that you are standing rmly on the ground. You

could otherwise lose your balance, e.g. on ice.

Observe the following notes:

The SmartKey is behind the vehicle.

Stand at least 12 in (30 cm) away from the

vehicle while performing the kicking move-

ment.

Do not come into contact with the bumper

while making the kicking movement.

Do not carry out the kicking movement too

slowly.

The kicking movement must be towards the

vehicle and back again.

7676

Opening and closing

Detection range of the sensors

If several consecutive kicking movements are not

successful, wait ten seconds.

Syst

System limitsem limits

The system may be impaired or may not function

in the following cases:

The sensors are dirty, e.g. due to road salt or

snow.

The kicking movement is made using a pros-

thetic leg.

The trunk lid could be opened unintentionally, in

the following situations:

A person's arms or legs are moving in the sen-

sor detection range, e.g. when polishing the

vehicle or picking up objects.

Objects are moved or placed behind the vehi-

cle, e.g. the fuel pump hose, charging cable or

luggage.

Clamping straps, tarps or other coverings are

pulled over the bumper.

A protective mat with a length reaching over

the trunk sill down into the detection range of

the sensors is used.

The protective mat is not secured correctly.

Deactivate the function of the SmartKey

(/ page 67) or do not carry the SmartKey about

your person in such situations.

UUnlocnlocking and opening tking and opening the trhe trunk frunk from inside withom inside with

tthe emerghe emergency rency releaseelease

RReqequiruirements:ements:

The 12 V vehicle battery is connected and

charged.

Press the emergency release button 1

briey.

Opening and closing

Side windowsSide windows

Opening and closing tOpening and closing the side windowshe side windows

WARNINGARNING Risk of entrapment when open-

ing a side window

When opening a side window, parts of the

body could be drawn in or become trapped

between the side window and window frame.

When opening, make sure that nobody is

touching the side window.

If someone is trapped, release the but-

ton immediately or pull it in order to

close the side window again.

WARNINGARNING Risk of becoming trapped when

closing a side window

When closing a side window, body parts could

be trapped in the closing area in the process.

When closing, make sure that no body

parts are in the closing area.

If someone is trapped, release the but-

ton immediately or press the button in

order to reopen the side window.

WARNINGARNING Risk of becoming trapped when

children operate the side windows

Children could become trapped if they operate

the side windows, particularly when unatten-

ded.

Activate the child safety lock for the rear

passenger compartment side windows.

When leaving the vehicle, always take the

SmartKey with you and lock the vehicle.

Never leave children unattended in the

vehicle.

RReqequiruirements:ements:

The power supply or the vehicle has been

switched on.

Closes

Opens

The buttons on the driver's door take precedence.

TTo sto starart autt automatic operomatic operation:ation: press the W

button beyond the point of resistance or pull

and release it.

TTo into interrerrupupt autt automatic operomatic operation:ation: press or pull

the W button again.

7878

Opening and closing

When the vehicle is switched o, you can con-

tinue to operate the side windows.

This function is available for around four minutes

or until a front door is opened.

Aututomatic revomatic reverersing function of tsing function of the side windowshe side windows

If an obstacle impedes a side window during the

closing process, the side window will open again

automatically. The automatic reversing function is

only an aid and is not a substitute for your atten-

tiveness.

During the closing process, make sure that no

body parts are in the closing area.

WARNINGARNING Risk of becoming trapped

despite there being reversing protection

on the side window

The reversing function does not react:

To so, light and thin objects, e.g. ngers.

During resetting.

The reversing function cannot prevent some-

one from becoming trapped in these situa-

tions.

During the closing process, make sure

that no body parts are in the closing

area.

If someone becomes trapped, press the

W button to open the side window

again.

ConvConvenience opening (venience opening (ventilating tentilating the vhe vehicleehicle

befbeforore ste stararting a jourting a journeney)y)

WARNINGARNING Risk of entrapment when open-

ing a side window

When opening a side window, parts of the

body could be drawn in or become trapped

between the side window and window frame.

When opening, make sure that nobody is

touching the side window.

Release the button immediately if some-

body becomes trapped.

RReqequiruirements:ements:

The SmartKey is in the immediate vicinity of

the vehicle.

Press and hold the Ü button on the Smart-

Key.

The following functions are performed:

The vehicle is unlocked.

The side windows are opened.

The panoramic sliding roof is opened.

The seat ventilation of the driver's seat is

switched on.

If the roller sunblind of the panoramic sliding

sunroof is closed, the roller sunblind is

opened rst.

TTo into interrerrupupt convt convenience opening:enience opening: release the

Ü button.

TTo continue convo continue convenience opening:enience opening: press and

hold the Ü button again.

Opening and closing

ConvConvenience closing (closing tenience closing (closing the vhe vehicle frehicle from out-om out-

side)side)

WARNINGARNING Risk of entrapment due to not

paying attention during convenience clos-

ing

When the convenience closing feature is oper-

ating, parts of the body could become trapped

in the closing area of the side window and the

sliding sunroof.

When the convenience closing feature is

operating, monitor the entire closing

process and make sure that no body

parts are in the closing area.

RReqequiruirements:ements:

The SmartKey is in the immediate vicinity of

the vehicle.

Press and hold the ß button on the Smart-

Key.

The following functions are performed:

The vehicle is locked.

The side windows are closed.

The panoramic sliding roof is closed.

TTo into interrerrupupt convt convenience closing:enience closing: release the

ß button.

TTo continue convo continue convenience closing:enience closing: press and

hold the ß button again.

Convenience closing also functions with KEY-

LESS-GO (/ page 70).

RResolesolving prving problems witoblems with th the side windowshe side windows

WARNINGARNING Risk of becoming trapped or

fatally injured if reversing protection is not

activated

If you close a side window again immediately

aer it has been blocked, the side window will

close with increased or maximum force. The

reversing function is then not active and body

parts may become trapped.

Make sure that no parts of the body are

in the closing area.

To stop the closing process, release the

button or press the button again to

reopen the side window.

A side windoA side window cannow cannot be closed and yt be closed and you cannotou cannot

see tsee the cause.he cause.

Check to see whether any objects are in the

window guide.

Adjust the side windows.

Adjusdjusting tting the side windowhe side windowss

If a side window is obstructed during closing and

reopens again immediately:

Immediately aer this, pull and hold the corre-

sponding button again until the side window

has closed and hold the button for at least one

more second (re-adjustment).

The side window will be closed without the

automatic reversing function.

If the side window is obstructed again and

reopens again immediately:

Immediately aer this, pull and hold the corre-

sponding button again until the side window

has closed and hold the button for at least one

more second (follow-up adjustment).

The side window will be closed without the

automatic reversing function.

8080

Opening and closing

The side windowThe side windows cannos cannot be opened or closedt be opened or closed

using tusing the convhe convenience opening fenience opening featureature.e.

Possible causes:

The SmartKey battery is weak or discharged.

Check the battery using the indicator lamp

(/ page 66).

Replace the SmartKey battery, if necessary

(/ page 68).

Sliding sunrSliding sunroofoof

Opening and closing tOpening and closing the sliding sunrhe sliding sunroofoof

The term "sliding sunroof" also refers to the

panoramic sliding sunroof.

WARNINGARNING Risk of becoming trapped when

the sliding sunroof is being opened and

closed

Body parts may become trapped in the range

of movement.

During opening and closing, make sure

that no body parts are in the range of

movement.

Release the button immediately if some-

body becomes trapped.

Briey press the button in any direction

during automatic operation.

The opening or closing process will be

stopped.

WARNINGARNING Risk of becoming trapped if the

sliding sunroof is operated by children

Children operating the sliding sunroof could

get caught in the moving parts, particularly if

unattended.

Never leave children unattended in the

vehicle.

When leaving the vehicle, always take the

key with you and lock the vehicle.

WARNINGARNING Risk of becoming trapped when

the roller sunblind is being opened and

closed

Body parts may become trapped between the

roller sunblind and frame or sliding roof.

When opening or closing, make sure that

no body parts are in the roller sunblind's

range of movement.

Release the button immediately if some-

body becomes trapped.

Briey press the button in any direction

during automatic operation.

The opening or closing process will be

stopped.

NOOTETE Malfunction due to snow and ice

Snow and ice may cause the sliding sunroof to

malfunction.

Open the sliding sunroof only if it is free

of snow and ice.

Opening and closing

NOOTETE Damage caused by protruding

objects

Objects that protrude from the sliding sunroof

may damage the seals.

Do not allow anything to protrude from

the sliding sunroof.

NOOTETE Damage to the panorama roof with

power tilt/sliding panel due to non-

approved roof luggage racks

The panorama roof with power tilt/sliding

panel may be damaged by the roof luggage

rack if you attempt to open it when using a

roof luggage rack not tested and approved for

Mercedes-Benz.

When a roof luggage rack is installed,

open the panorama roof with power tilt/

sliding panel only if this has been tested

and approved for Mercedes-Benz.

The panorama roof with power tilt/sliding

panel may be raised to allow ventilation of the

vehicle interior.

Raises

Opens

Closes/lowers

Use the 3 button to operate the panoramic

sliding sunroof.

The panoramic sliding sunroof can be operated

only when the roller sunblind is open.

Check whether the sliding sunroof can be

raised or opened when a roof luggage rack is

installed.

TTo sto starart autt automatic operomatic operation:ation: press the 3

button beyond the point of resistance or pull

and release it.

TTo into interrerrupupt autt automatic operomatic operation:ation: briey press

the 3 button in any direction.

The opening/closing process will be stopped.

Vehicles witehicles with a panorh a panoramic sliding sunramic sliding sunroof:oof: The

automatic raising feature is available only when

the sliding sunroof is closed or raised.

Aututomatic revomatic reverersing function of tsing function of the sliding sun-he sliding sun-

rroofoof

If an obstacle obstructs the sliding sunroof during

the closing process, the sliding sunroof will open

again automatically. The automatic reversing func-

tion is only an aid and is not a substitute for your

attentiveness.

During the closing process, make sure that no

body parts are in the closing area.

8282

Opening and closing

WARNINGARNING Risk of becoming trapped

despite the reversing function being active

In particular, the reversing function does not

react:

To so, light and thin objects, e.g. ngers.

Towards the end of the closing procedure.

During resetting.

During the closing process, make sure

that no body parts are in the closing

area.

Release the button immediately if some-

body becomes trapped.

Briey press the button in any direction

during automatic operation.

The closing process will be stopped.

AAututomatic revomatic reverersing function of tsing function of the rhe roller sunblindoller sunblind

If an obstacle obstructs the roller sunblind during

the closing process, the roller sunblind will open

again automatically. The automatic reversing func-

tion is only an aid and is not a substitute for your

attentiveness.

When closing the roller sunblind, make sure

that no body parts are in the range of move-

ment.

WARNINGARNING Risk of becoming trapped

despite reversing function

In particular, the reversing function does not

react to so, light and thin objects, e.g. n-

gers.

When closing the roller sunblind, make

sure that no body parts are in the range

of movement.

Release the button immediately if some-

body becomes trapped.

Briey press the button in any direction

during the automatic closing process.

The closing process will be stopped.

AAututomatic functions of tomatic functions of the sliding sunrhe sliding sunroofoof

The term "sliding sunroof" also refers to the

panorama roof with power tilt/sliding panel.

Rain closing function when drain closing function when drivingiving

VVehicles witehicles with a panorh a panorama rama roof witoof with powh power tilt/er tilt/

sliding panel:sliding panel: If it starts to rain, the raised sliding

sunroof will automatically be lowered while the

vehicle is in motion.

Aututomatic lowomatic lowerering functioning function

VVehicles witehicles with a panorh a panorama rama roof witoof with powh power tilt/er tilt/

sliding panel:sliding panel: If the sliding sunroof is raised at the

rear, it will automatically be lowered slightly at

higher speeds. At low speeds, it will be raised

again automatically.

WARNINGARNING Risk of becoming trapped by

automatic lowering of the sliding sunroof

At higher speeds, the raised sliding sunroof

will automatically be lowered slightly at the

rear.

Make sure that nobody reaches into the

sliding sunroof's range of movement

while the vehicle is in motion.

If somebody becomes trapped, briey

push the sliding sunroof button forwards

or backwards.

Opening and closing

By pushing or pulling the 3 button, you

can interrupt the automatic functions "Rain

closing function when driving" and "Automatic

lowering".

RRectifying prectifying problems witoblems with th the sliding sunrhe sliding sunroofoof

WARNINGARNING Risk of becoming trapped or

fatal injuries when the sliding sunroof is

closed again

If the sliding sunroof is closed again immedi-

ately aer it has been blocked or reset, it will

close with increased force.

Make sure that no parts of the body are

in the closing area.

Release the button immediately if some-

body becomes trapped.

Briey press the button in any direction

during the automatic closing process.

The closing process will be stopped.

The sliding sunrThe sliding sunroof cannooof cannot be closed and yt be closed and you can-ou can-

nonot see tt see the cause.he cause.

The term "sliding sunroof" also refers to the

panorama roof with power tilt/sliding panel.

If the sliding sunroof is obstructed during closing

and reopens again slightly:

Immediately aer automatic reversing, pull

and hold the 3 button down again to the

point of resistance until the sliding sunroof is

closed.

The sliding sunroof will be closed with

increased force.

If the sliding sunroof is obstructed again and

opens again slightly:

Repeat the previous step.

The sliding sunroof will be closed again with

increased force.

VVehicles witehicles with a panorh a panorama rama roof witoof with powh power tilt/er tilt/

sliding panel: The sliding sunrsliding panel: The sliding sunroof or toof or the rhe roller sun-oller sun-

blind is noblind is not opert operating smootating smoothlyhly..

Reset the sliding sunroof and the roller sun-

blind.

Reseesetting ttting the sliding sunrhe sliding sunroof and toof and the rhe roller sun-oller sun-

blindblind

Pull and hold the 3 button little by little

until the sliding sunroof is fully closed.

Pull and hold the 3 button little by little

until the roller sunblind is fully closed.

Use automatic operation to fully open and

then close the sliding sunroof.

Anti-tAnti-thehe protprotectionection

FFunction of tunction of the immobilizerhe immobilizer

The immobilizer prevents your vehicle from being

started without the correct SmartKey.

The immobilizer is automatically activated when

the vehicle is switched o, and deactivated when

the vehicle is switched on.

When leaving the vehicle, always take the Smart-

Key with you and lock the vehicle. Anyone can

start the vehicle if a valid SmartKey has been le

inside the vehicle.

8484

Opening and closing

In the event the engine cannot be started (yet

the vehicle’s battery is charged), the system is

not operational. Contact an authorized

Mercedes-Benz Center or call

1-800-FOR-MERCedes (in the USA) or

1-800-387-0100 (in Canada).

AATTAA (anti-t(anti-thehe alaralarm systm system)em)

FFunction of tunction of the AThe ATA systA systemem

If the ATA system is armed, a visual and audible

alarm is triggered in the following situations:

When a door is opened

When the trunk lid is opened

When the hood is opened

When the interior motion sensor is triggered

(/ page 86)

When the tow-away alarm is triggered

(/ page 86)

The ATA system is armed automatically aer

approximately ten seconds in the following situa-

tions:

Aer locking the vehicle with the SmartKey

Aer locking the vehicle using KEYLESS-GO

Indicator lamp 1 ashes when the ATA system is

armed.

The ATA system is deactivated automatically in the

following situations:

Aer unlocking the vehicle with the SmartKey

Aer unlocking the vehicle using KEYLESS-GO

Aer pressing the start/stop button with the

SmartKey in the marked space (/ page 131)

When the Mercedes‑Benz emergency call sys-

tem is active and the alarm stays on for more

than 30 seconds, a message is automatically

sent to the Customer Assistance Center

(/ page 249).

In the case of severe battery discharging, the

anti-the alarm system is automatically deac-

tivated to facilitate the next engine start.

Deactiv

Deactivating tating the ATAhe ATA

Press the Ü, ß or p button on the

SmartKey.

Press the start/stop button with the SmartKey

in the stowage compartment (/ page 131)

Deactiv

Deactivating tating the alarhe alarm using KEYLESS-GOm using KEYLESS-GO

Grasp the outside door handle with the Smart-

Key outside the vehicle.

Opening and closing

FFunction of tunction of the towhe tow-awa-away alarmy alarm

This function may not be available in all coun-

tries.

An audible and visual alarm is triggered if an alter-

ation to your vehicle's angle of inclination is

detected while the tow-away alarm is armed.

The tow-away alarm is automatically armed aer

approximately 60 seconds:

Aer locking the vehicle with the SmartKey

Aer locking the vehicle using KEYLESS-GO

The tow-away alarm is only armed when the fol-

lowing components are closed:

Doors

Trunk lid

The tow-away alarm is automatically deactivated:

Aer pressing the Ü or p button on the

SmartKey

Aer pressing the start/stop button with the

SmartKey in the marked space (/ page 131)

Aer unlocking the vehicle using KEYLESS-GO

When using HANDS-FREE ACCESS

Information on collision detection on a parked

vehicle (/ page 155).

ArArming/disarming/disarming tming the towhe tow-awa-away alarmy alarm

Multimedia system:

Settings

Quick Access

Arm or disarm Tow-away Protection.

The tow-away alarm is armed again in the follow-

ing cases:

The vehicle is unlocked again.

A door is opened.

The vehicle is locked again.

If quick access is unavailable, select the Vehi-

cle

submenu in the Settings main menu to

arm or disarm the tow-away alarm.

FFunction of tunction of the inthe intererior moior motion sensortion sensor

This function may not be available in all coun-

tries.

When the interior motion sensor is activated, a

visual and audible alarm is triggered if movement

is detected in the vehicle interior.

The interior motion sensor is activated automati-

cally aer approximately ten seconds:

Aer locking the vehicle with the SmartKey

Aer locking the vehicle using KEYLESS-GO

The interior motion sensor is only activated when

the following components are closed:

Doors

Trunk lid

The interior motion sensor is automatically deacti-

vated:

Aer pressing the Ü or p button on the

SmartKey

Aer pressing the start/stop button with the

SmartKey in the marked space (/ page 131)

Aer unlocking the vehicle using KEYLESS-GO

When using HANDS-FREE ACCESS

8686

Opening and closing

The following situations can lead to a false alarm:

When there are moving objects such as mas-

cots in the vehicle interior

When a side window is open

When a panoramic sliding sunroof is open

ArArming/deactivming/deactivating tating the inthe intererior moior motion sensortion sensor

Multimedia system:

Settings

Quick Access

Activate or deactivate Interior Motion Sensor.

The interior motion sensor is activated again in

the following cases:

The vehicle is unlocked again.

A door is opened.

The vehicle is locked again.

If quick access is unavailable, select the Vehi-

cle

menu under Settings to activate or deacti-

vate the interior motion sensor.

Opening and closing

Opening and closing for Your Mercedes CLA 4 Door Second Generation (2019-2024)

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