See also:

Snow chains
For safety reasons, Mercedes-Benz recommends that you only use snow chains which have been specially approved for your vehicle by Mercedes-Benz, or are of a corresponding standard of quality. ...

Safety notes
WARNING   Work improperly carried out on electronic components and associated software could cause them to cease functioning. Because the vehicle's electronic components are interconnec ...

Emergency Tensioning Devices, beltforce limiters
The seat belts for the front seats are equipped with ETDs/belt buckle tensioners and seat belt force limiters. The outer seat belts in the second row of seats are equipped with ETDs and seat belt f ...