BMW 5 Series E39 car engine power system

Power system — general information
The power supply system includes a fuel tank, a fuel pump located in the fuel tank, fuel lines, as well as fuel and air filters. Injection systems for gasoline...

Fuel tank device
1 - fuel tank 2 - buffer 3 - nut 4 - hex bolt 5 - sleeve 6 - clamp right (on the left side is the same clamp) 7 - shock absorber 8 - hose clamps 9 - filling...

Fuel economy while driving
Driving style has a significant impact on fuel economy. Below are some rules for courteous handling of the accelerator pedal. Start driving immediately after...

Accuracy when working with fuel supply systems
When working on fuel supply systems, the following rules of cleanliness must be carefully observed: Thoroughly clean the joints and places next to these joints...

Checking the fuel pump relay
The fuel pump relay -2- is located on the relay holder in the luggage compartment on the right behind the trim above the battery. Its task is to provide the...

Checking the performance of the fuel pump
Gasoline engines Note: In a diesel engine, the fuel pressure is measured in the fuel line between the filter and the fuel pump. To perform this work, you must...

Removal and installation of the fuel level sensor / fuel pump
In BMW 5 Series cars, both sections of the tank contain a fuel level sensor. To check the sensors, they must be removed. The sensor of the right section of the...

Removal and installation of the air filter housing / mass air flow meter
Withdrawal Remove the mass air flow meter. To do this, turn the knurled nut -3- to the left and disconnect the plug. Loosen air hose clamp -1-. Using a...