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 test 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:
Connecting an external device
Do not leave external devices in the
vehicle as extreme temperatures (e.g. direct sunlight or extremely low outside
temperatures) could cause them to
malfunction (see the operating instructions ...
Qualified specialist workshop
An authorized Mercedes-Benz Center is a
qualified specialist workshop. It has the
necessary specialist knowledge, tools and
qualifications to correctly carry out the work
required on your vehi ...
Operation
Depending on the date of manufacture of your
vehicle, the or
symbol for the
automatic headlamp mode/daytime running
lamps is located on the light switch.
Illustration: light switch with th ...