The BELTBAG identification indicates that a rear seat belt is equipped with a belt airbag.
When activated, the belt airbag increases the protected area of the vehicle occupant's ribcage.
In an accident, the belt airbag may damage a non-approved child restraint system or a child restraint system which has not been approved for use in conjunction with the belt airbag.
As a result, the child restraint system may not be able to provide the intended level of protection.
For safety reasons, Mercedes-Benz recommends that you only use a child restraint system which has been tested and approved by Mercedes-Benz in combination with a belt airbag.
Information on child restraint systems More.