See also:

Changing the battery
If required, replace the battery with a genuine spare part having the same specifications. If a battery with different specifications is fitted, the service intervals given in the “Service schedule ...

Controls
(A): Air temperature knob (mixing hot and cold air); (B): Air recirculation on/off button; (C): Fan knob and climate control system on/off; (D): Air distribution knob. ...

Climatic comfort
Knob (D) directs the air inside the passenger compartment according to five levels: air flow from central vents and side outlets; to warm the feet and keep the face cool (“bilevel” function) ...