If the car does not have an exhaust gas converter (OG) it is permissible to use leaded gasoline, class not lower than AI-91. M57 engines are designed to run on diesel fuel (DIN EN 590). In the cold season it is necessary to use winter grades of diesel fuel.
The volume of the fuel tank is 93 liters, including a reserve stock when the car is equipped with the M54 and M57 engines - 8 liters, and the M62 engine - 10 liters.
To refuel, the fuel tank flap must be opened (pic. 1.48), to do this, unlock the central lock and press the front edge of the fuel hatch cover (arrow).
Remove the fuel tank cap and install it in the bracket on the hatch. To refuel, insert the filling nozzle into the filler pipe. When filling is complete, insert the plug and turn it clockwise until you hear a distinct click.
BMW X5 E53 fuel filler cap under certain circumstances (electrical equipment malfunction) can also be opened manually, for this:
- grab the handle of the right cover into the upholstery of the right side of the luggage compartment and lift it up:
- pull out the button with the filling station symbol.
Attention! There must always be some fuel left in the tank to keep the engine running properly and to avoid engine damage.