Only use the following securing systems for child restraint systems:
Installing a LATCH-type (ISOFIX) child restraint system is preferred.
Simply attaching to the 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 LATCH-type (ISOFIX) child restraint system, always comply with the permissible gross weight for the child and child restraint system.
A 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 where a three-point seat belt can be installed properly without a booster seat.
Mercedes-Benz recommends a suitable child booster seat with a backrest and seat belt guide.