Get Children in the vehicle -> Important safety notes Guide for Mercedes CLA 4 Door Third Generation (2025-2026)

Brief overview of most important points

Safely transporting children in the vehicle

Always observe the following when transporting

children:

Do not leave children unsupervised in the

vehicle (/ page 55).

Secure children up to a height of 5  (1.50 m)

on the respective seat (see illustration above)

properly with a suitable and approved child

restraint system , and secure small children in

a rearward-facing child restraint system.

Observe the child restraint system manufac-

turer's installation instructions.

Le/right rear seat (preferred seats)

Preferred securing system:

LATCH-type (ISOFIX) securing ring

and

Also secure Top Tether if present

(/ page 63).

Alternative securing system:

Vehicle seat belt (/ page 65)

Additionally attach Top Tether if recom-

mended by the manufacturer of the child

restraint system (/ page 63).

Front passenger seat

Securing system:

Vehicle seat belt (/ page 65)

Be sure to observe:

If the front passenger seat is occupied, ensure

that the status of the front passenger air bag

is correct for the current situation

(/ page 41).

Center rear seat

Securing system:

Vehicle seat belt (/ page 65)

Additionally attach Top Tether if recom-

mended by the manufacturer of the child

restraint system (/ page 63).

Important safety notes

Basic information

Be diligent

Bear in mind that negligence when securing a

child in the child restraint system may have seri-

Children in the vehicle – Important safety notes

ous consequences. Always be diligent in securing

a child carefully before every journey.

Never allow babies and children to travel sitting

on the lap of another vehicle occupant.

To improve protection for children younger than

12 years old or under 5  (1.50 m) in height,

Mercedes-Benz recommends you observe the fol-

lowing information:

Always secure the child in a child restraint sys-

tem suitable for this Mercedes-Benz vehicle.

The child restraint system must be appropriate

to the age, weight and size of the child.

The vehicle seat must be suitable for the child

restraint system to be installed:

Accident statistics show that children secured on

the rear seats are generally safer than children

secured on the front seats. For this reason,

Mercedes-Benz strongly advises that you install a

child restraint system on a rear seat.

The generic term "child restraint system"

The generic term "child restraint system" is used

in this Operator's Manual. A child restraint system

is, for example:

a baby car seat

a rearward-facing child seat

a forward-facing child seat

a child booster seat – Mercedes-Benz recom-

mends using a child booster seat

with a back-

rest and seat belt guide.

Observe laws and legal requirements

Always observe the legal requirements when

using a child restraint system in the vehicle.

Securing systems for child restraint systems in

the vehicle

Use only the following securing systems for child

restraint systems:

the LATCH-type (ISOFIX) securing rings

the vehicle's seat belt system

the Top Tether anchorages

Simply attaching to the LATCH-type (ISOFIX)

securing rings on the vehicle can reduce the risk

of installing the child restraint system incorrectly.

When securing a child with the integrated seat

belt of the ISOFIX/LATCH child restraint system,

always comply with the permissible gross weight

for the child and child restraint system

(/ page 62).

A child booster seat may be necessary to achieve

proper seat belt positioning for children over

40 lbs (18 kg) in weight or until they reach a

height at which they can wear a three-point seat

belt properly without a child booster seat.

Mercedes-Benz recommends a suitable child

booster seat with a backrest and seat belt guide.

Observe standards for child restraint systems

All child restraint systems must meet the following

standards:

U.S. Federal Motor Vehicle Safety Standards

213

Canadian Motor Vehicle Safety Standards 213

Children in the vehicle – Important safety notes

Conrmation that the child restraint system com-

plies with the standards can be found on an

instruction label on the child restraint system.

This conrmation can also be found in the instal-

lation instructions that are included with the child

restraint system.

Important warning notices

Always secure a child restraint system correctly

WARNING Risk of injury or death due to

incorrect installation of the child restraint

system

The child can then not be protected or

restrained as intended.

Be sure to comply with the manufactur-

er's installation instructions for the child

restraint system and its correct use.

Make sure that the entire base of the

child restraint system always rests on

the sitting surface of the seat.

Never place objects (e.g. cushions)

under or behind the child restraint sys-

tem.

Use child restraint systems only with the

original cover designed for them.

Always replace damaged covers with

genuine covers.

Always observe the vehicle-specic informa-

tion.

Installing the ISOFIX child restraint system

on the right and le rear seats

(/ page 62).

Securing the child restraint system with

the seat belt (/ page 65).

Observe the warning labels in the vehicle inte-

rior and on the child restraint system.

WARNING Risk of injury or death due to

unsecured child restraint systems in the

vehicle

If the child restraint system is incorrectly

mounted or unsecured, it may come loose.

The child can then not be protected or

restrained as intended.

Unused child restraint systems could be ung

around and hit vehicle occupants.

Always comply with the manufacturer's

installation instructions for the child

restraint system and its correct use.

Always t child restraint systems cor-

rectly, even if they are transported in the

vehicle unused.

Do not modify the child restraint system

WARNING Risk of injury due to modica-

tions to the child restraint system

The child restraint system can no longer func-

tion properly. This poses an increased risk of

injury.

Never modify a child restraint system.

Only ax accessories which have been

specially approved for this child restraint

system by the child restraint system's

manufacturer.

Children in the vehicle – Important safety notes

Use only child restraint systems that are in proper

working condition

WARNING Risk of injury or death caused

by the use of damaged child restraint sys-

tems

Child restraint systems or their retaining sys-

tems that have been subjected to stress in an

accident may not be able to perform their

intended protective function.

It may be the case that the child cannot be

properly restrained.

Always immediately replace child

restraint systems that have been dam-

aged or involved in an accident.

Have the securing systems for the child

restraint systems checked at a qualied

specialist workshop before installing a

child restraint system again.

Avoid direct sunlight

WARNING Risk of burns when the child

seat is exposed to direct sunlight

If the child restraint system is exposed to

direct sunlight or heat, parts could heat up

excessively.

Children could suer burns from these parts,

particularly the metallic parts of the child

restraint system.

Always make sure that the child restraint

system is not exposed to direct sunlight.

Cover the child restraint system with a

blanket, for example.

If the child restraint system has been

exposed to direct sunlight, allow it to

cool before securing a child into it.

Never leave children unattended in the

vehicle.

Observe when stopping or parking

WARNING Risk of fatal injury due to expo-

sure to extreme heat or cold in the vehicle

If persons, particularly children, are subjected

to prolonged exposure to intense heat or cold,

there is a risk of severe injury or even death.

Never leave persons, particularly chil-

dren, unattended in the vehicle.

WARNING Risk of accident and injury if

children are le unattended in the vehicle

If children are le unattended 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.

Children in the vehicle – Important safety notes

In addition, the children could also set the

vehicle in motion, for example by:

releasing the parking brake.

changing gear.

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 SmartKey out of the reach of

children.

Notes on rearward-facing and forward-facing child

restraint systems on the front passenger seat

WARNING Risk of injury or fatal injury

when using a rearward-facing child

restraint system while the co-driver airbag

is enabled

If you secure a child in a rearward-facing child

restraint system on the co-driver seat and the

PASSENGER AIR BAG OFF indicator lamp is

o, the co-driver airbag can deploy in the

event of an accident.

The child could be struck by the airbag.

Always ensure that the co-driver airbag is

disabled. The PASSENGER AIR BAG OFF

indicator lamp must be lit.

NEVER use a rearward-facing child

restraint system on a seat with an ENA-

BLED FRONT AIRBAG; DEATH or SERI-

OUS INJURY to the CHILD can occur.

Observe the specic instructions for the rear-

ward-facing and forward-facing child restraint sys-

tems (/ page 59).

If it is absolutely necessary to install a child

restraint system on the front passenger seat,

always observe the following notes:

When using a rearward-facing child restraint

system on the front passenger seat, the front

passenger air bag must always be disabled.

This is only the case if the PASSENGER AIR

BAG OFF indicator lamp is lit continuously

(/ page 41).

The front passenger air bag is enabled when

the PASSENGER AIR BAG OFF indicator lamp

is not lit. The front passenger air bag may be

deployed during an accident. In that case, do

not use rearward-facing child restraint sys-

tems.

Information on automatic front passenger air bag

shuto

If the front passenger seat is occupied, ensure,

both before and during the journey, that the sta-

tus of the front passenger air bag is correct for

the current situation.

WARNING Risk of injury or death due to

objects between the seat surface and the

child restraint system

Objects between the seat surface and the

child restraint system can interfere with the

function of the automatic front passenger air

bag shuto.

Children in the vehicle – Important safety notes

Do not place any objects between the

seat surface and the child restraint sys-

tem.

Make sure that the entire base of the

child restraint system rests on the seat

cushion of the front passenger seat.

The backrest of a forward-facing child

restraint system must, as far as possible,

be resting against the seat backrest of

the front passenger seat.

Always comply with the installation

instructions from the child restraint sys-

tem manufacturer.

When installing a child restraint system on the

front passenger seat, observe the vehicle-specic

information (/ page 57).

Rearward-facing child restraint system on the

front passenger seat

If a rearward-facing child restraint system is

installed on the front passenger seat, the front

passenger air bag must be disabled. The

PASSENGER AIR BAG OFF indicator lamp must be

continuously lit (/ page 41).

WARNING Risk of injury or fatal injury

when using a rearward-facing child

restraint system while the co-driver airbag

is enabled

If you secure a child in a rearward-facing child

restraint system on the co-driver seat and the

PASSENGER AIR BAG OFF indicator lamp is

o, the co-driver airbag can deploy in the

event of an accident.

The child could be struck by the airbag.

Always ensure that the co-driver airbag is

disabled. The PASSENGER AIR BAG OFF

indicator lamp must be lit.

NEVER use a rearward-facing child

restraint system on a seat with an ENA-

BLED FRONT AIRBAG; DEATH or SERI-

OUS INJURY to the CHILD can occur.

Depending on the child restraint system and

the stature of the child, the front passenger

air bag will be enabled. The PASSENGER AIR

BAG OFF indicator lamp will not light up.

The front passenger air bag may be deployed

during an accident. If the front passenger air

bag has this status, no rearward-facing child

restraint system may be installed on the front

passenger seat.

Instead, install the rearward-facing child

restraint system on a suitable rear seat.

Forward-facing child restraint system on the front

passenger seat

If a forward-facing child restraint system is instal-

led on the front passenger seat, the front

passenger air bag may be automatically enabled

or disabled. The status of the front passenger air

bag depends on the child restraint system and the

stature of the child.

The PASSENGER AIR BAG OFF indicator lamp will

either light up continuously or not light up

(/ page 41). Always observe the following infor-

mation.

Children in the vehicle – Important safety notes

WARNING Risk of injury or death caused

by incorrect positioning of the child

restraint system

If you secure a child in a forward-facing child

restraint system on the front passenger seat

and you position the front passenger seat too

close to the cockpit, in the event of an acci-

dent, the child could:

Come into contact with the vehicle interior

if the PASSENGER AIR BAG OFF indicator

lamp is lit, for example.

Be struck by the air bag if the PASSENGER

AIR BAG OFF indicator lamp is o.

Always move the front-passenger seat as

far back as possible. Always make sure

that the shoulder belt strap is correctly

routed from the seat belt outlet of the

vehicle to the shoulder belt guide on the

child restraint system. The shoulder belt

strap must be routed forwards and

downwards from the seat belt outlet. If

necessary, adjust the front-passenger

seat accordingly.

Always comply with the child restraint

system manufacturer's installation

instructions.

Be sure to also observe the following further rela-

ted subjects:

Function of the automatic front passenger air

bag shuto (/ page 41)

Suitable child restraint systems for the transport

of children

Information on the benet of a rearward-facing

child restraint system

Transport a baby in a suitable rearward-facing

child restraint system only. It is also preferable to

transport a small child in a suitable rearward-

facing child restraint system. In this case, the

child sits in the opposite direction to the direction

of travel and faces backwards.

Babies and small children have comparatively

weak neck muscles in relation to the size and

weight of their head. The risk of injury to the cer-

vical spine during an accident can be reduced in a

rearward-facing child restraint system.

Securing the child restraint system

Adjusting the seat correctly

When installing a child restraint system on the le

or right rear seat, always observe the following:

Make sure that the child's feet do not touch

the front seat. If necessary, move the front

seat slightly forwards.

If the head restraint of the child restraint system

cannot be fully extended when it is installed in the

vehicle, this will result in restrictions on the maxi-

mum size setting for certain child restraint sys-

tems. Observe the child restraint system manu-

facturer's installation instructions.

Contact with the roof when the head restraint

is fully extended and locked in place will not

result in any restrictions on use.

Children in the vehicle – Suitable child restraint systems for the transport of children

Children in the vehicle -> Important safety notes for Your Mercedes CLA 4 Door Third Generation (2025-2026)

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