See also:

Treadwear indicators
Narrow bars (tread wear bars) that are distributed over the tire tread. If the tire tread is level with the bars, the wear limit of 1/16 in (1.6 mm) has been reached. ...

Service and literature
Your vehicle is covered under the terms of the warranties printed in the Service and Warranty Information booklet. Your authorized Mercedes-Benz Center will exchange or repair any defective pa ...

Adjusting the head restraints manually
Adjusting the head restraint height The head restraints must only be removed at a qualified specialist workshop. Mercedes-Benz recommends that you use a Mercedes-Benz Center for this purpose. ...