See also:

Cleaning the steering wheel and gear or selector lever
  Thoroughly wipe with a damp cloth or use leather care agents that have been recommended and approved by Mercedes- Benz. ...

R 300 CDI BlueEFFICIENCY: low fuel consumption MPV
As with all BlueEFFICIENCY models from Mercedes-Benz, the R-Class features a whole range of measures to reduce fuel consumption. In addition to the direct-injection diesel engine and the low-frict ...

Brake fluid
WARNING Over a period of time, the brake fluid absorbs moisture from the air; this lowers its boiling point. If the boiling point of the brake fluid is too low, vapor pockets may form in the ...