See also:

Adjusting the climate mode settings (AIR FLOW)
This function is only available with automatic climate control. The climate control settings are especially effective at high temperatures. You can select the following climate control setting ...

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 ...