See also:

Close the windows and glass sunroof
Driving with the glass sunroof and windows open results in increased air resistance and raises fuel consumption. ...

Fuel specifications
Never use fuels labeled at the fuel pump as metal-containing. Do not use leaded gasoline or gasoline with metal-containing additives such as manganese or iron; doing so can cause permanent damag ...

Cargo
In wagon form, the 5 Series is quite utilitarian. There are a lot of convenient features I appreciated during my time with it. Chief among them was the cargo cover that raised and lowered when you ...