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:
Cruise control lever
1 To store the current speed or a higher speed
2 To store the current speed or a lower speed
3 To deactivate DISTRONIC PLUS
4 To store the current speed or to call up the last stored speed
...
Refrigerant of the air-conditioning
system
The air-conditioning system is filled with
R134a refrigerant and a special PAG
lubricant.
Never use refrigerant R 12 (CFC) or
mineral lubricants. Otherwise, you could
damage the air-condition ...
General notes
WARNING
If the vehicle becomes trapped in snow, ensure that snow is kept away from the
exhaust pipe and from around the vehicle as long as the engine is running. Otherwise,
poisonous carbon ...