Get Opening and closing Guide for Mercedes A Class 4 Door Third Generation (2018-2026)

Opening and closing

SmartKey

66

3

4

5

#

Unlocks

Opens the trunk lid

Panic alarm

When leaving the vehicle, always take the

SmartKey with you and lock the vehicle.

Overview of kkey functions

Keep the vehicle SmartKey out of reach

of children.

&

WARNING Risk of accident and injury due

to children leꢀ unattended in the vehicle

%

If indicator lamp 2 does not light up aꢀer

pressing the Ü or ß button, the battery

is weak or possibly discharged. Replace the

battery as soon as possible.

*

NOTE Damage to the SmartKey caused by

magnetic ꢂelds

If children are leꢀ unsupervised in the vehicle,

they could, in particular:

R

#

open doors, thereby endangering other

persons or road users.

Keep the SmartKey away from strong

magnetic ꢂelds.

Replace the key battery (/ page 68).

The key locks and unlocks the following compo-

nents:

R

get out and be struck by oncoming traꢁc.

R

operate vehicle equipment and become

trapped, for example.

R

Doors

R

Fuel ꢂller ꢃap

In addition, the children could also set the

vehicle in motion, for example by:

R

Trunk lid

If the vehicle is not opened within approximately

40 seconds aꢀer unlocking, it locks again. Anti-

theꢀ protection is activated again.

R

releasing the parking brake.

R

changing the transmission position.

R

starting the vehicle.

Do not keep the key together with electronic devi-

ces or metal objects. This can aꢄect the key's

functionality.

#

Never leave children unattended in the

vehicle.

Vehicle SmartKey with panic alarm

Locks

Indicator lamp

1

2

Opening and closing

67

#

Activating/deactivating the acoustic locking veriꢂ-

cation signal

To deactivate: brieꢃy press button 1 again.

Deactivating the function of the SmartKey

or

Vehicles with 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.

Multimedia system:

5

#

Press the start/stop button.

A SmartKey belonging to the vehicle must be

detected in the vehicle.

4

5

©

Settings

Vehicle

#

Activate or deactivate Acoustic Lock.

Changing the unlocking settings

Arming//disarming the pannic alarrm

Requirements:

R

The vehicle is switched oꢄ.

Possible unlocking functions of the SmartKey:

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.

R

Central unlocking

R

Unlocking the driver's door and fuel ꢂller ꢃap

#

To switch between settings: press the Ü

#

To deacttivate: press the ß button on the

and ß buttons simultaneously for approx-

imately six seconds until the indicator lamp

ꢃashes twice.

SmartKey twice in quick succession.

The SmartKey indicator lamp ꢃashes twice

brieꢃy and lights up once.

Options if the unlocking function for the driver's

door and fuel ꢂller ꢃap has been selected:

#

To activate: 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 129).

R

To unlock the vehicle centrally: press the

Ü button twice.

R

Vehicles wwith KEYLESS-GO: if you touch the

#

To activate: press button 1 for approximately

one second.

A visual and audible alarm is triggered.

inner surface of the door handle on the driv-

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

ꢂller ꢃap are unlocked.

Opening and closing

68

Removing/insertiing thee emergency key

Removing the emergency key

Inserting the emergency key

#

If batteries are swallowed, seek medical

attention immediately.

#

Press release button 1.

#

Insert emergency key 2 to the intermediate

position or fully until it engages.

+

ENVIRONMENTAL NOTE Environmental

damage due to improper disposal of bat-

teries

%

You can use the intermediate position of

emergency key 2 to attach the SmartKey to

a key ring.

Replaciing the SmartKeey battery

Batteries contain pollutants. It is

illegal to dispose of them with the household

rubbish.

&

DANGER Risk of fatal injuries due to swal-

lowing batteries

#

Press release button 1.

Emergency key 2 is pushed out slightly.

Batteries contain toxic and corrosive substan-

ces. Swallowing batteries may cause severe

internal burns to occur within two hours.

#

Pull out emergency key 2 until it engages in

the intermediate position.

Dispose of batteries in an

environmentally responsible manner.

Take discharged batteries to a qualiꢂed

specialist workshop or to a collection

point for used batteries.

There is a risk of fatal injury.

#

%

Keep batteries out of the reach of chil-

dren.

Depending on the vehicle's equipment, the

intermediate position is not available.

#

If the cap and/or the battery compart-

Press release button 1 again and fully

remove emergency key 2.

ment does not close securely, do not use

the SmartKey any longer and keep out of

the reach of children.

Requirements:

R

You require a CR 2032 3 V cell battery.

Opening and closing

69

Mercedes-Benz recommends that you have the

battery replaced at a qualiꢂed specialist work-

shop.

the battery compartment and on the battery

when doing this.

There is interference from a powerful radio signal

source

#

Push in battery compartment 3.

Possible causes if the function of the SmartKey is

impaired:

#

Remove the emergency key (/ page 68).

Re-attach cover 1 and push it until it

engages.

R

High voltage power lines

R

Mobile phones

R

Problems with the SmartKey, troublleshootinng

Electronic devices (notebooks, tablets)

R

Shielding due to metal objects or induction

loops for electrical gate systems or automatic

barriers

You can no longer lock or unlock the vehicle

Possible causes:

R

The SmartKey battery is weak or discharged.

#

Make sure that there is suꢁcient distance

between the SmartKey and the potential

source of interference.

#

Check the battery using the indicator lamp

(/ page 66).

#

Replace the SmartKey battery, if necessary

(/ page 68).

#

Press release knob 2 down fully and slide

cover 1 in the direction of the arrow.

You have lost a SmartKey

#

Have the SmartKey deactivated at a qualiꢂed

specialist workshop.

#

Use the replacement SmartKey.

#

Fold out cover 1 in the direction of the arrow

and remove.

#

Use the emergency key to lock or unlock

(/ page 72).

#

If necessary, have the mechanical lock

replaced as well.

#

Remove battery compartment 3 and take

out the discharged battery.

#

Have the SmartKey checked at a qualiꢂed spe-

cialist workshop.

#

Insert the new battery into battery compart-

ment 3. Observe the positive pole marking in

Opening and closing

Doors

70

Centrally lockking and unlocking the vehhicle from

the inside

This does not lock or unlock the fuel ꢂller ꢃap.

The vehicle is not unlocked:

Unlocking/opening the doors fromm the inside

R

If you have locked the vehicle using the Smart-

Key

R

If you have locked the vehicle using KEYLESS-

GO

Locking/unlocking thee vehicle with KEYLESS-GO

Requirements:

R

The SmartKey is outside the vehicle.

R

The distance between the SmartKey and the

vehicle does not exceed 3 ꢀ (1 m).

R

The driver's door and the door on which the

door handle is used are closed.

*

NOTE Damage to the vehicle caused by

unintentionally opening the trunk lid

#

To unlock: press button 1.

#

To unlock and open a front door: pull door

handle 1.

#

To lock: press button 2.

The red indicator lamp on button 2 lights up

once the vehicle is locked.

R

When using an automatic car wash

When using a high pressure cleaner

#

To unlock a rear door: pull the rear door han-

dle.

#

Deactivate the function of the SmartKey

in these situations.

%

The buttons are also on the front passenger

and rear doors.

#

To open a rear door: pull the rear door handle

again.

Opening and closing

71

%

Further information on convenience closing

(/ page 79).

or

#

Make sure that the SmartKey is at a min-

imum distance of 10 ꢀ (3 m) away from

the vehicle.

If you open the trunk lid from outside, the trunk

lid is automatically unlocked.

Observe the notes:

Problems with KEYLESS-GO, troubleshooting

R

On washing the vehicle in a car wash

(/ page 264)

You can no longer lock or unlock the vehicle using

KEYLESS-GO

R

On using a high pressure cleaner

(/ page 266)

Possible causes:

R

The function of the SmartKey has been deacti-

vated.

R

The SmartKey battery is weak or discharged.

#

Activate the function of the SmartKey

(/ page 67).

#

To unlock the vehicle: touch the inner surface

of the door handle.

#

Check the battery using the indicator lamp

(/ page 66).

To lock the vehicle: touch sensor surface 1

or 2.

#

Replace the SmartKey battery, if necessary

(/ page 68).

#

Convenience closing: touch recessed sensor

surface 2 until the closing process has been

completed.

#

Use the replacement SmartKey.

#

Use the emergency key to lock or unlock

(/ page 72).

Opening and closing

72

#

Have the vehicle and SmartKey checked at a

qualiꢂed specialist workshop.

In the following situations, there is a danger of

being locked out when the function is activated:

R

While the vehicle is being tow-started or

pushed

There is interference from a powerful radio signal

source

R

If the vehicle is being tested on a roller dyna-

mometer

Possible causes if the function of KEYLESS-GO is

impaired:

R

High voltage power lines

Locking/unlocking thee vehiclee with the emer-

gency key

R

Mobile phones

R

Electronic devices (notebooks, tablets)

Locking/unlocking the driver's door with the

emergency key

R

Shielding due to metal objects or induction

loops for electrical gate systems or automatic

barriers

%

If you wish to lock the vehicle entirely using

the emergency key, ꢂrst 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.

#

Make sure that there is suꢁcient distance

between the SmartKey and the potential

source of interference.

#

To activate: press and hold button 2 for

approximately ꢂve seconds until an acoustic

signal sounds.

Activvating//ddeactivating the automatic llocking fea-

ture

To deactivate: press and hold button 1 for

approximately ꢂve seconds until an acoustic

signal sounds.

The vehicle is locked automatically when the vehi-

cle is switched on and the wheels are turning

faster than walking pace.

The red indicator lamp on button 2 lights up

once the vehicle is locked.

Opening and closing

73

Locking the front passenger door and rear doors

#

Remove the emergency key (/ page 68).

To unlock: turn the emergency key counter-

clockwise to position 1.

Insert the emergency key as far as it will go

into opening 1 in the cover.

#

Insert a suitable object, e.g. the emergency

key, into opening 1 on the door lock.

To lock: turn the emergency key clockwise to

position 1.

#

Pull and hold the door handle.

#

To lock the leꢀ-hand side of the vehicle: turn

the emergency key counter-clockwise as far

as it will go.

Carefully press the cover onto the lock cylin-

der until it engages and is seated ꢂrmly.

Pull the cover on the emergency key as

straight as possible away from the vehicle until

it releases.

#

Release the door handle.

Opening and closing

74

#

To lock the right-hand side of the vehicle: turn

the emergency key clockwise as far as it will

go.

*

NOTE Damage to the trunk lid by obsta-

cles above the vehicle

The trunk lid swings upwards when it is

opened.

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

be opened from the outside.

#

Therefore, make sure that there is suꢁ-

cient clearance above the trunk lid.

Trunk

#

Pull the trunk lid handle.

Opening the trunk lid

#

Vehicles with HANDS-FREE ACCESS: Make a

kicking movement with your foot below the

bumper (/ page 75).

&

DANGER 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.

#

Pull remote operating switch 1 until the

trunk lid opens.

#

Always switch oꢄ the vehicle before

opening the trunk lid.

or

#

Press and hold the p button on the Smart-

Key.

Never drive with the trunk lid open.

Opening and closing

HANDS-FREE ACCCESS function

75

Closing the trunk lid

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

lowing situation occurs:

&

WARNING Risk of injury from unsecured

items in the vehicle

R

You have locked the vehicle and close the

trunk lid while a SmartKey belonging to the

vehicle is inside the vehicle.

If objects, luggage or loads are not secured or

not secured suꢁciently, they could slip, tip

over or be thrown around and thereby hit vehi-

cle occupants.

and

R

A second SmartKey belonging to the vehicle is

not detected outside the vehicle.

There is a risk of injury, particularly in the

event of sudden braking or a sudden change

in direction.

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.

#

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.

#

To close the trunk lid: pull the trunk lid down-

wards using the handle recess and push it

closed.

With HANDS-FREE ACCESS you can open the

trunk lid by performing a kicking movement under

the bumper.

Observe the notes on loading the vehicle.

Notes on closing the trunk 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.

Observe the notes when opening the trunk lid

(/ page 74).

Opening and closing

76

When making the kicking movement, make sure

that you are standing ꢂrmly on the ground. You

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

&

WARNING 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.

Observe the following notes:

R

The SmartKey is behind the vehicle.

R

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

vehicle while performing the kicking move-

ment.

#

Always ensure that you only make a kick-

ing movement within the detection range

of the sensors.

R

Do not come into contact with the bumper

while making the kicking movement.

1

Detection range of the sensors

*

NOTE Damage to the vehicle caused by

unintentionally opening the trunk lid

Do not carry out the kicking movement too

slowly.

If several consecutive kicking movements are not

successful, wait ten seconds.

The kicking movement must be towards the

vehicle and back again.

R

When using an automatic car wash

When using a high pressure cleaner

System limits

The system may be impaired or may not function

in the following cases:

#

Deactivate the function of the SmartKey

in these situations.

R

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

snow.

or

#

Make sure that the SmartKey is at a min-

imum distance of 10 ꢀ (3 m) away from

the vehicle.

R

The kicking movement is made using a pros-

thetic leg.

Opening and closing

77

The trunk lid could be opened unintentionally, in

the following situations:

Unlocking and opening thee trunk from inside with

the emergency release

Side windows

Opening and closing the sidee windowws

R

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

sor detection range, e.g. when polishing the

vehicle or picking up objects.

Requirements:

R

The 12 V vehicle battery is connected and

&

WARNINGG Risk of entrapment when open-

ing a side window

charged.

R

Objects are moved or placed behind the vehi-

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

luggage.

When opening a side window, parts of the

body could be drawn in or become trapped

between the side window and window frame.

R

Clamping straps, tarps or other coverings are

pulled over the bumper.

#

When opening, make sure that nobody is

touching the side window.

R

A protective mat with a length reaching over

the trunk sill down into the detection range of

the sensors is used.

#

If someone is trapped, release the but-

ton immediately or pull it in order to

close the side window again.

R

The protective mat is not secured correctly.

&

WARNING Risk of becoming trapped when

closing a side window

Deactivate the function of the SmartKey

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

your person in such situations.

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.

#

Press the emergency release button 1

brieꢃy.

Opening and closing

78

When the vehicle is switched oꢄ, you can con-

tinue to operate the side windows.

#

If someone is trapped, release the but-

ton immediately or press the button in

order to reopen the side window.

This function is available for around four minutes

or until a front door is opened.

&

WARNING Risk of becoming trapped when

children operate the side windows

Automaticc reversing function of the siide windowws

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.

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.

#

During the closing process, make sure that no

body parts are in the closing area.

#

When leaving the vehicle, always take the

SmartKey with you and lock the vehicle.

&

WARNING Risk of becoming trapped

despite there being reversing protection

on the side window

#

Never leave children unattended in the

vehicle.

1

2

Closes

Opens

The reversing function does not react:

Requirements:

R

The power supply or the vehicle has been

R

To soꢀ, light and thin objects, e.g. ꢂngers.

The buttons on the driver's door take precedence.

#

switched on.

R

During resetting.

To start automatic operation: press the W

button beyond the point of resistance or pull

and release it.

The reversing function cannot prevent some-

one from becoming trapped in these situa-

tions.

#

To interrupt automatic operation: press or pull

the W button again.

Opening and closing

79

#

Press and hold the Ü button on the Smart- Convenience closing (closing the vehicle from out-

#

During the closing process, make sure

that no body parts are in the closing

area.

side)

Key.

The following functions are performed:

&

WARNING Risk of entrapment due to not

paying attention during convenience clos-

ing

R

If someone becomes trapped, press the

W button to open the side window

again.

The vehicle is unlocked.

R

The side windows are opened.

R

The panoramic sliding roof is opened.

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.

R

The seat ventilation of the driver's seat is

switched on.

Conveniennce opening (ventilating thee vehicle

before startiing a journey)

%

If the roller sunblind of the panoramic sliding

sunroof is closed, the roller sunblind is

opened ꢂrst.

#

When the convenience closing feature is

&

WARNING Risk of entrapment when open-

ing a side window

operating, monitor the entire closing

process and make sure that no body

parts are in the closing area.

#

To interrupt convenience opening: release the

Ü button.

To continue convenience opening: press and

When opening a side window, parts of the

body could be drawn in or become trapped

between the side window and window frame.

Requirements:

R

The SmartKey is in the immediate vicinity of

hold the Ü button again.

#

When opening, make sure that nobody is

touching the side window.

the vehicle.

#

Press and hold the ß button on the Smart-

Key.

#

Release the button immediately if some-

body becomes trapped.

The following functions are performed:

Requirements:

R

The SmartKey is in the immediate vicinity of

R

The vehicle is locked.

R

The side windows are closed.

the vehicle.

Opening and closing

80

R

The panoramic sliding roof is closed.

A side window cannot be closed and you cannot

see the cause.

The side windows cannot be opened or closed

using the convenience opening feature.

#

To interrupt convenience closing: release the

ß button.

To continue convenience cclosinngg: press and

hold the ß button again.

Convenience closing also functions with KEY-

#

Check to see whether any objects are in the

window guide.

Possible causes:

#

R

The SmartKey battery is weak or discharged.

#

Adjust the side windows.

#

Check the battery using the indicator lamp

(/ page 66).

%

Adjusting the side windows

LESS-GO (/ page 70).

#

Replace the SmartKey battery, if necessary

(/ page 68).

If a side window is obstructed during closing and

reopens again immediately:

Resolvinng problemmss with the siide windows

#

Immediately aꢀer 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.

Sliding sunroof

&

WARNING Risk of becoming trapped or

fatally injured if reversing protection is not

activated

Opening and closing the sliding sunroof

%

The term "sliding sunroof" also refers to the

panoramic sliding sunroof.

If you close a side window again immediately

aꢀer 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.

If the side window is obstructed again and

reopens again immediately:

&

WARNING Risk of becoming trapped when

the sliding sunroof is being opened and

closed

#

Immediately aꢀer 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.

Make sure that no parts of the body are

in the closing area.

Body parts may become trapped in the range

of movement.

#

To stop the closing process, release the

button or press the button again to

reopen the side window.

Opening and closing

81

#

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.

&

*

WARNING Risk of becoming trapped when

the roller sunblind is being opened and

closed

NOTE Damage caused by protruding

objects

Objects that protrude from the sliding sunroof

may damage the seals.

Body parts may become trapped between the

roller sunblind and frame or sliding roof.

#

Do not allow anything to protrude from

the sliding sunroof.

or

#

When opening or closing, make sure that

#

Brieꢃy press the button in any direction

during automatic operation.

The opening or closing process will be

stopped.

no body parts are in the roller sunblind's

range of movement.

Release the button immediately if some-

*

NOTE Damage to the panorama roof with

power tilt/sliding panel due to non-

approved roof luggage racks

#

body becomes trapped.

or

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.

&

WARNING Risk of becoming trapped if the

sliding sunroof is operated by children

#

Brieꢃy press the button in any direction

during automatic operation.

The opening or closing process will be

stopped.

Children operating the sliding sunroof could

get caught in the moving parts, particularly if

unattended.

#

When a roof luggage rack is installed,

#

Never leave children unattended in the

vehicle.

*

NOTE Malfunction due to snow and ice

open the panorama roof with power tilt/

sliding panel only if this has been tested

and approved for Mercedes-Benz.

Snow and ice may cause the sliding sunroof to

malfunction.

#

When leaving the vehicle, always take the

key with you and lock the vehicle.

#

Open the sliding sunroof only if it is free

of snow and ice.

The panorama roof with power tilt/sliding

panel may be raised to allow ventilation of the

vehicle interior.

Opening and closing

82

#

Check whether the sliding sunroof can be

raised or opened when a roof luggage rack is

installed.

&

WARNING Risk of becoming trapped

despite the reversing function being active

In particular, the reversing function does not

react:

To start automatic operation: press the 3

button beyond the point of resistance or pull

and release it.

R

To soꢀ, light and thin objects, e.g. ꢂngers.

R

Towards the end of the closing procedure.

To interrupt automatic operation: brieꢃy press

the 3 button in any direction.

The opening/closing process will be stopped.

R

During resetting.

#

During the closing process, make sure

Vehicles with a panoramic sliding sunroof: The

automatic raising feature is available only when

the sliding sunroof is closed or raised.

that no body parts are in the closing

area.

Release the button immediately if some-

#

body becomes trapped.

Automatiic reversing function of the sliding sun-

roof

or

#

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.

Brieꢃy press the button in any direction

during automatic operation.

The closing process will be stopped.

1

2

3

Raises

Opens

Closes/lowers

Automaticc reversing function of the roller 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.

Use the 3 button to operate the panoramic

sliding sunroof.

#

During the closing process, make sure that no

body parts are in the closing area.

The panoramic sliding sunroof can be operated

only when the roller sunblind is open.

Opening and closing

83

#

%

When closing the roller sunblind, make sure

that no body parts are in the range of move-

ment.

Rain closing function when driving

By pushing or pulling the 3 button, you

can interrupt the automatic functions "Rain

closing function when driving" and "Automatic

lowering".

Vehicles with a panorama roof with power tilt/

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

sunroof will automatically be lowered while the

vehicle is in motion.

&

WARNING Risk of becoming trapped

despite reversing function

Rectifyiing problemss with the sliding sunroof

Automatic lowering function

In particular, the reversing function does not

react to soꢀ, light and thin objects, e.g. ꢂn-

gers.

Vehicles with a panorama roof with power tilt/

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.

&

WARNING Risk of becoming trapped or

fatal injuries when the sliding sunroof is

closed again

#

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.

If the sliding sunroof is closed again immedi-

ately aꢀer it has been blocked or reset, it will

close with increased force.

&

WARNING Risk of becoming trapped by

automatic lowering of the sliding sunroof

#

Make sure that no parts of the body are

in the closing area.

Release the button immediately if some-

body becomes trapped.

or

At higher speeds, the raised sliding sunroof

will automatically be lowered slightly at the

rear.

#

Brieꢃy press the button in any direction

during the automatic closing process.

The closing process will be stopped.

#

Make sure that nobody reaches into the

sliding sunroof's range of movement

while the vehicle is in motion.

or

#

Brieꢃy press the button in any direction

during the automatic closing process.

The closing process will be stopped.

Automatic functions of the sliding sunroof

#

If somebody becomes trapped, brieꢃy

push the sliding sunroof button forwards

or backwards.

%

The term "sliding sunroof" also refers to the

panorama roof with power tilt/sliding panel.

Opening and closing

The sliding sunroof cannot be closed and you can- Resetting the sliding sunroof and the roller sun-

84

not operational. Contact an authorized

Mercedes-Benz Center or call

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

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

not see the cause.

blind

#

%

The term "sliding sunroof" also refers to the

panorama roof with power tilt/sliding panel.

Pull and hold the 3 button little by little

until the sliding sunroof is fully closed.

#

If the sliding sunroof is obstructed during closing

and reopens again slightly:

Pull and hold the 3 button little by little

until the roller sunblind is fully closed.

ATA (antti-theꢀ aalarm system)

Function of thee ATA system

#

Immediately aꢀer automatic reversing, pull

Use automatic operation to fully open and

then close the sliding sunroof.

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 ATA system is armed, a visual and audible

alarm is triggered in the following situations:

R

When a door is opened

Anti-theꢀ prrotection

R

When the trunk lid is opened

Function of thhe immobilizer

R

When the hood is opened

The immobilizer prevents your vehicle from being

started without the correct SmartKey.

If the sliding sunroof is obstructed again and

opens again slightly:

R

When the interior motion sensor is triggered

(/ page 86)

The immobilizer is automatically activated when

the vehicle is switched oꢄ, and deactivated when

the vehicle is switched on.

#

Repeat the previous step.

The sliding sunroof will be closed again with

increased force.

R

When the tow-away alarm is triggered

(/ page 85)

Vehicles with a panorama roof with power tilt/

sliding panel: The sliding sunroof or the roller sun-

blind is not operating smoothly.

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 leꢀ

inside the vehicle.

The ATA system is armed automatically aꢀer

approximately ten seconds in the following situa-

tions:

#

Reset the sliding sunroof and the roller sun-

blind.

R

Aꢀer locking the vehicle with the SmartKey

%

In the event the engine cannot be started (yet

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

R

Aꢀer locking the vehicle using KEYLESS-GO

Opening and closing

When the Mercedes‑Benz emergency call sys- An audible and visual alarm is triggered if an alter-

85

%

tem is active and the alarm stays on for more

than 30 seconds, a message is automatically

sent to the Customer Assistance Center

(/ page 247).

ation to your vehicle's angle of inclination is

detected while the tow-away alarm is armed.

The tow-away alarm is automatically armed aꢀer

approximately 60 seconds:

In the case of severe battery discharging, the

anti-theꢀ alarm system is automatically deac-

tivated to facilitate the next engine start.

R

Aꢀer locking the vehicle with the SmartKey

R

Aꢀer locking the vehicle using KEYLESS-GO

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

lowing components are closed:

Deactivating the ATA

#

Press the Ü, ß or p button on the

SmartKey.

R

Doors

R

Trunk lid

or

#

Press the start/stop button with the SmartKey

in the stowage compartment (/ page 129)

The tow-away alarm is automatically deactivated:

R

Aꢀer pressing the Ü or p button on the

SmartKey

Indicator lamp 1 ꢃashes when the ATA system is

armed.

Deacttivating the alarm using KEYLESS-GO

R

Aꢀer pressing the start/stop button with the

SmartKey in the marked space (/ page 129)

#

Grasp the outside door handle with the Smart-

Key outside the vehicle.

The ATA system is deactivated automatically in the

following situations:

R

Aꢀer unlocking the vehicle using KEYLESS-GO

R

Aꢀer unlocking the vehicle with the SmartKey

R

When using HANDS-FREE ACCESS

Function of the tow-awway alarm

R

Aꢀer unlocking the vehicle using KEYLESS-GO

%

This function may not be available in all coun-

tries.

Information on collision detection on a parked

vehicle (/ page 153).

R

Aꢀer pressing the start/stop button with the

SmartKey in the marked space (/ page 129)

Opening and closing

86

R

Arming//disarming the tow--away alarm

Multimedia system:

The interior motion sensor is activated automati-

cally aꢀer approximately ten seconds:

When a panoramic sliding sunroof is open

R

Aꢀer locking the vehicle with the SmartKey

Arming/deactivating thhe interiorr motion sensor

Multimedia system:

4

5

©

Settings

Quick Access

R

Aꢀer locking the vehicle using KEYLESS-GO

#

Arm or disarm Tow-away Protection.

4

5

The interior motion sensor is only activated when

the following components are closed:

©

Settings

Quick Access

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

ing cases:

#

Activate or deactivate Interior Motion Sensor.

R

Doors

R

The vehicle is unlocked again.

The interior motion sensor is activated again in

the following cases:

R

Trunk lid

R

A door is opened.

R

The vehicle is unlocked again.

R

The vehicle is locked again.

The interior motion sensor is automatically deacti-

vated:

R

A door is opened.

%

If quick access is unavailable, select the Vehi-

cle submenu in the Settings main menu to

arm or disarm the tow-away alarm.

R

Aꢀer pressing the Ü or p button on the

SmartKey

R

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.

R

Aꢀer pressing the start/stop button with the

SmartKey in the marked space (/ page 129)

Function of tthe interior motion sensor

R

Aꢀer unlocking the vehicle using KEYLESS-GO

%

This function may not be available in all coun-

tries.

R

When using HANDS-FREE ACCESS

The following situations can lead to a false alarm:

When the interior motion sensor is activated, a

visual and audible alarm is triggered if movement

is detected in the vehicle interior.

R

When there are moving objects such as mas-

cots in the vehicle interior

R

When a side window is open

Opening and closing for Your Mercedes A Class 4 Door Third Generation (2018-2026)

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