See also:

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 ...

Locking and unlocking
Pressing the buttons locks and unlocks the doors and the trunk lid when the front doors are closed, but they are not secured against theft. The fuel filler flap remains unlocked. ...

Built for Curves
Like BMW's cars, the X3 offers top-notch road manners. Some may find the steering wheel too difficult to turn, but its heavy rotations render spot-on directional control. The meaty steering wheel ...