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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.
...
General notes
If you cannot lock or unlock the vehicle with
the SmartKey, either the battery in the
SmartKey is discharged, the SmartKey is
faulty or the starter battery is discharged.
•► Check the bat ...
Tow-starting (emergency starting)
Vehicles with automatic transmission
must not be started by tow-starting. This
could otherwise damage the transmission. ...
