Get Occupant safety -> Restraint system Guide for Mercedes CLA 4 Door Second Generation (2019-2024)

RResestrtraint systaint systemem

ProtProtection proection provided bvided by ty the rhe resestrtraint systaint systemem

The restraint system includes the following com-

ponents:

Seat belt system

Airbags

Child restraint system

Child seat securing systems

The restraint system can help prevent the vehicle

occupants from coming into contact with parts of

the vehicle interior in the event of an accident. In

the event of an accident, the restraint system can

also reduce the forces to which the vehicle occu-

pants are subjected.

A seat belt can only provide the best level of pro-

tection if it is worn correctly. Depending on the

detected accident situation, Emergency Tension-

ing Devices and/or airbags supplement the pro-

tection oered by a correctly worn seat belt.

Emergency Tensioning Devices and/or airbags

are not deployed in every accident.

In order for the restraint system to provide the

intended level of protection, each vehicle occu-

pant must observe the following information:

Fasten seat belts correctly.

Sit in an almost upright seat position with their

back against the seat backrest.

Sit with their feet resting on the oor, if possi-

ble.

Always secure persons under 5  (1.50 m) tall

in an additional restraint system suitable for

Mercedes-Benz vehicles.

However, no system available today can com-

pletely eliminate injuries and fatalities in every

accident situation. In particular, the seat belt and

airbag generally do not protect against objects

penetrating the vehicle from the outside. It is also

not possible to completely rule out the risk of

injury caused by the airbag deploying.

LimitLimitations of tations of the prothe protection proection provided bvided by ty thehe

rresestrtraint systaint systemem

WARNINGARNING Risk of injury or death due to

modications to the restraint system

Vehicle occupants may no longer be protected

as intended if alterations are made to the

restraint system.

Never alter the parts of the restraint sys-

tem.

Never tamper with the wiring or any elec-

tronic component parts or their so-

ware.

If it is necessary to modify the vehicle to accom-

modate a person with disabilities, contact an

authorized Mercedes-Benz Center for details.

USA only: for details, contact our Customer Assis-

tance Center on 1-800-FOR-MERCedes

(1‑800‑367‑6372).

Occupant safety

RResestrtraint systaint system functionalityem functionality

When the vehicle is switched on, a self-test is per-

formed, during which the 6 restraint system

warning lamp lights up. It goes out no later than a

few seconds aer the vehicle is started. The com-

ponents of the restraint system are then func-

tional.

Malfunctioning rMalfunctioning resestrtraint systaint systemem

A malfunction has occurred in the restraint sys-

tem if:

The 6 restraint system warning lamp does

not light up when the vehicle is switched on

The 6 restraint system warning lamp lights

up continuously or repeatedly during a journey

WARNINGARNING Risk of injury due to malfunc-

tions in the restraint system

Components in the restraint system may be

activated unintentionally or not deploy as plan-

ned in an accident.

Have the restraint system checked and

repaired immediately at a qualied spe-

cialist workshop.

FFunction of tunction of the rhe resestrtraint systaint system in an accidentem in an accident

How the restraint system works depends on the

severity of the impact detected and the apparent

type of accident:

Frontal impact

Rear impact

Side impact

Rollover

The activation thresholds for the components of

the restraint system are determined based on the

evaluation of the sensor values measured at vari-

ous points in the vehicle. This process is pre-emp-

tive in nature. The triggering/deployment of the

components of the restraint system must take

place in good time at the start of the collision.

Factors which can only be seen and measured

aer a collision has occurred cannot play a deci-

sive role in airbag deployment. Nor do they pro-

vide an indication of airbag deployment.

The vehicle may be deformed signicantly without

an airbag being deployed. This is the case if only

parts which are relatively easily deformed are

aected and the rate of vehicle deceleration is

not high. Conversely, an airbag may be deployed

even though the vehicle suers only minor defor-

mation. If very rigid vehicle parts such as longitu-

dinal members are hit, this may result in su-

ciently high levels of vehicle deceleration.

Depending on the detected deployment situation,

the components of the restraint system can be

activated or deployed independently of each

other:

Emergency Tensioning Device: frontal impact,

rear impact, side impact, rollover

Driver's airbag, front passenger airbag: frontal

impact

Knee airbag: frontal impact

Side airbag: side impact

Window curtain airbag: side impact, rollover,

frontal impact

3838

Occupant safety

The front passenger airbag can only be deployed

in an accident if the PASSENGER AIR BAG OFF

indicator lamp is o. If the front passenger seat is

occupied, make sure, both before and during the

journey, that the status of the front passenger air-

bag is correct (/ page 48).

WARNINGARNING Risk of burns from hot air bag

components

The air bag parts are hot aer an air bag has

been deployed.

Do not touch the air bag parts.

Have a deployed air bag replaced at a

qualied specialist workshop as soon as

possible.

Mercedes-Benz recommends that you have the

vehicle towed to a qualied specialist workshop

aer an accident. Take this into account, particu-

larly if an Emergency Tensioning Device is trig-

gered or an airbag deployed.

If the Emergency Tensioning Devices are triggered

or an airbag is deployed, you will hear a bang, and

a small amount of powder may also be released:

The bang will not generally aect your hearing.

In general, the powder released is not hazard-

ous to health but may cause short-term

breathing diculties to persons suering from

asthma or other pulmonary conditions.

Provided it is safe to do so, leave the vehicle

immediately or open the window in order to

prevent breathing diculties.

Airbags and pyrotechnic Emergency Tensioning

Devices contain perchlorate material, which may

require special handling or environmental protec-

tion measures. National guidelines regarding

waste disposal must be observed. In California,

see Using the search func-

tion, you will nd information on perchlorate, for

example.

Seat beltsSeat belts

ProtProtection proection provided bvided by ty the seat belthe seat belt

Always fasten your seat belt correctly before

starting a journey. A seat belt can only provide

the best level of protection if it is worn correctly.

WARNINGARNING Risk of injury or death due to

incorrectly fastened seat belt

If the seat belt is not worn correctly, it cannot

perform its intended protective function.

In addition, an incorrectly fastened seat belt

can also cause injuries, for example, in the

event of an accident or when braking or

changing direction suddenly.

Always ensure that all vehicle occupants

have their seat belts fastened correctly

and are sitting properly.

Always observe the instructions about the correct

driver's seat position and adjusting the seat

(/ page 88).

Occupant safety

Occupant safety -> Restraint system for Your Mercedes CLA 4 Door Second Generation (2019-2024)

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