See also:

Special seat belt retractor
All seat belts except the driver's seat belt are equipped with a special seat belt retractor. When activated, the special seat belt retractor ensures the seat belt will not slacken once the ch ...

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. ...

Belt warning for the driver and front passenger
Regardless of whether the driver and front passenger have fastened their seat belts already, the7seat belt warning lamp lights up for seconds after every engine start. It then goes out if t ...