Safety

Child locks

~3min read

Important safety notes

WARNING

When children are on board, activate the child locks on the rear doors and deactivate the rear window switches. Otherwise, children could open the doors or side windows while driving and injure themselves or others.

WARNING

Never leave children unattended in the vehicle, even if they are secured in a child restraint system. Children may injure themselves on parts of the vehicle. They may also be seriously or even fatally injured if they are exposed to intense heat or cold for too long.

Do not expose the child restraint system to direct sunlight. Parts of the child restraint system may become very hot, and the child could burn themselves on contact with them.

Children may injure themselves or others when opening a door. They may get out of the vehicle and be injured by or injure other road users.

Also observe the notes on the HOLD function. For more information, refer to the alphabetical index.

Child locks on the rear doors

Sécurité enfants au niveau des portes arrière

The child lock on the rear doors allows each door to be locked separately. A door locked this way cannot be opened from the inside. You can open the door from the outside if the vehicle is unlocked.

  • Activating the child lock: push the locking lever upward (arrow 1).
  • Check that the child lock works.
  • Deactivating the child lock: push the locking lever downward (arrow 2).

Child locks for the rear side windows

Sécurité enfants au niveau des vitres latérales arrière

  • Activating and deactivating the child lock: press the switch .

Switch 1 engages or extends. When the switch is engaged, the rear window switches on the rear side windows are disabled. You can then operate the rear side windows only using the switches on the driver's door.

Footnotes

[1] On vehicles not equipped with automatic child seat detection at the front passenger seat, the PASSENGER AIRBAG OFFau moment où vous tournez la clé en position 2 dans le contacteur d'allumage maislamp also lights briefly
when you turn the key to position 2 in the ignition switch, but it has no function. It does not indicate the presence of automatic child seat detection at the front passenger seat.

[2] Vehicles equipped with automatic child seat detection at the front passenger seat: the installed child restraint system must be of the 'Universal' category and have transponders for automatic child seat detection.

The PASSENGER AIRBAG OFF indicator lampêtre allumé.must
be lit.

[3] Move the front passenger seat fully rearward and set it to its highest position. Set the backrest almost upright and the seat belt height to its lowest position.

Test yourself

A quick Mercedes-Benz B-Class quiz: every answer comes with an explanation and a link to the manual page.