See also:

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 1 ...

DEF
Important safety notes For BlueTEC vehicles only. DEF is a non-flammable, non-toxic, colorless, odorless and water-soluble fluid. Rinse surfaces that have come into contact with DEF immediately ...

INTERIOR
It's inside the R-Class where some of those previously mentioned quirks start rearing their ugly heads. The R-Class has an electronic gearshift lever on the steering wheel. Putting the car into ...