BMW 5 Series E39 car engine power system

Power supply system — general information
The fuel system includes a fuel back, a fuel pump located in the fuel tank, fuel lines, and fuel and air filters. The injection systems of gasoline and diesel...

Fuel tank device
1 - fuel tank 2 - buffer 3 - nut 4 - Hexagon head bolt 5 - bushing 6 - right clamp (on the left side there is the same clamp) 7 - shock absorber 8 - hose...

Saving fuel while driving
Driving style has a significant impact on fuel economy. Below are some rules for handling the accelerator pedal with care. After starting the engine, start...

Be careful when working with fuel supply systems
When working with fuel supply systems, it is necessary to carefully follow the following cleanliness rules: Thoroughly clean the connection areas and areas...

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 supply the...

Checking the performance of the fuel pump
Petrol engines Note: In a diesel engine, the fuel pressure is measured in the fuel line between the filter and the fuel pump. This work should be done at a...

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

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

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