The treadwear 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 test track 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.
Light switch
   Operation
Switch off the parking lamps and lowbeam
headlamps when you leave the
vehicle. This prevents the battery from
discharging.
If the battery has been excessively
discharged, the parking ...
   
Settings menu
   Introduction
In the Sett. menu, you have the following
options:
• changing the instrument cluster settings  
• changing the light settings  
• changing the vehicle settings  
•  ...
   
Engine oil
   General notes
Never use engine oil or an oil filter of a
specification other than is necessary to
fulfill the prescribed service intervals. Do
not change the engine oil or oil filter in
order to  ...