See also:

Fuel gauge
The vehicle inclination may cause the display to vary. Notes on refueling ...

Parked-car ventilation
The concept The parked-car ventilation ventilates the vehicle interior and lowers its temperature, if necessary. The system can be switched on and off directly or by using two preset switch-on t ...

Fuel specifications
Gasoline engine: required fuel Do not use fuels that are labeled at the fuel pump as containing metals. Only refuel with lead-free gasoline without metal additives Do not refuel with leaded ...