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:
Message memory
The on-board computer saves certain display messages. You can call up the
display messages
in the message memory.
Press the or
button on the steering wheel to
select the Service menu.
If t ...
Features
Aside from dressing up to drive them, I like how German luxury cars have a
plethora of options and toys to play with. Our E350 was no exception, starting
with the upgraded Harman Kardon stereo. I ...
Checking tire pressure electronically
•► Make sure that the SmartKey is in position
2 in the ignition lock.
•► Press the button on the
steering wheel to select the Service
menu.
•► Press the button to sel ...