See also:

Individual climatisation modes at the touch of a button
Mercedes-Benz has developed a climate control system for the E-Class which not only allows individual temperatures to be set in three zones - for the driver, front passenger and rear passengers - ...

Switching on/off
The three blue indicator lamps in the buttons indicate the ventilation level you have selected. If the battery voltage is too low, the seat ventilation may switch off. ► Make sure that ...

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 ...