See also:

Assembling the ball coupling
Mercedes-Benz recommends that you have the ball coupling assembled at a qualified specialist workshop. Only a qualified specialist workshop has the necessary specialist knowledge and tool ...

Removing the mechanical key
Removing the mechanical key Push release catch 1 in the direction of the arrow and at the same time, remove mechanical key 2 from the SmartKey. ...

Determining the correct load limit
Step-by-step instructions The following steps have been developed as required of all manufacturers under Title 49, Code of U.S. Federal Regulations, Part 575 pursuant to the "National Traf ...