See also:

Load bearing index
The load bearing index (also load index) is a code that contains the maximum load bearing capacity of a tire. ...

General notes
The Lane Tracking package consists of Blind Spot Assist (Y page 198) and Lane Keeping Assist. ...

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. ...