Some common fuel injection problems can be traced back to a faulty or non-operational fuel pump. If your pump is noisy and loud, or the fuel pressure in the engine compartment is below what is needed for proper fuel injection operation, then it's probably time to replace it. The fuel pump is a not as simple a device as one might think. The fuel actually runs through the pump and acts as a coolant and lubricant for the entire assembly. Therefore, if you let your car run out of gas, make sure that you turn off the car immediately, or you might damage the internal components of the pump.

This is a straight-forward DIY project which you can complete within two hours.

Check out the article here -> MINI Fuel Pump & Filter Replacement