Tread wear
The tread wear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified U.S. government course. For example, a tire graded 150 would wear one and one-half times as well on the government course as a tire graded 100.
The relative performance of tires depends upon the actual conditions of their use, however, and may depart significantly from the norm, due to variations in driving habits, service practices and differences in road characteristics and climate conditions.
See also:
High-beam headlamps
► Switch off the lights.
► Open the hood.
► Turn housing cover 1
counter-clockwise
and pull it out.
► Turn bulb holder 2
counter-clockwise and
pull it out.
► ...
Setting the rear-compartment side air
vents
These rear-compartment side air vents are
only available if your vehicle has 3-zone
automatic climate control.
1 B-pillar air vent
2 Thumbwheel for B-pillar air vent
- To open/close: turn thu ...
Cleaning the steering wheel and gear or
selector lever
– Thoroughly wipe with a damp cloth or use
leather care agents that have been
recommended and approved by Mercedes-
Benz. ...