Diesel injection system BMW 5 Series E39

Diesel engine injection systems
In a diesel engine, clean air is sucked into the cylinders and is highly compressed there. Due to this, the temperature in the cylinders rises above the...

Turbocharger
The diesel engine of the BMW car is equipped with a turbocharger. In the turbocharger, two wheels are located on one shaft, a turbine and a compressor, which...

Exhaust Gas Recirculation (EGR) System
The fuel system of diesel engines is equipped with an exhaust gas recirculation (EGR) system, which reduces the amount of harmful nitrogen oxides emitted into...

Fuel filter preheating system
At low ambient temperatures, the fluidity of diesel fuel decreases due to the crystallization of the paraffin contained in it. Diesel fuel becomes thick as...

Diesel engine preheating system
When the engine is cold, it is not possible to create a high temperature in the combustion chamber that would allow the fuel to ignite spontaneously by...

Checking/Removing and Installing Glow Plugs — Model 525tds
If there are difficulties when starting the engine, then first of all you should check the compression. If the engine compression is insufficient, then at low...

Checking Glow Plugs — Model 530d
Removal Prerequisite for checking: the battery voltage must be more than 9 volts. If necessary, charge the battery. Caution: If the glow plugs are not working...

Removal and installation glow plugs — model 530d
Removal Turn off the ignition. Disconnect the negative (-) battery cable. The battery is located in the luggage compartment behind the right side trim....

Checking/Removing and Installing the Pre-Glow Relay — Model 525tds
Removal To gain access to the relay and fuse box, remove the fine air filter housing in the rear right side of the engine compartment. Unscrew the fastener and...

Fuel System Bleeding — Model 525tds
If the fuel tank was completely empty during the trip or fuel system parts were replaced, then, as a rule, there is no need to remove air from the fuel system,...

Checking/Removing and Installing Fuel Solenoid Switch — Model 525tds
The electromagnetic switch opens the fuel supply channel to the high-pressure fuel pump when the ignition is turned on. The electromagnetic valve must be...

Removal and installation injectors — model 525tds
Injector defects can cause loud knocks in the engine and raise suspicions of bearing damage. If you suspect this, you should switch the engine to idle mode and...

Checking/Adjusting High Pressure Fuel Pump Start-Up — Model 525tds
To check, you need a linear displacement indicator with a corresponding adapter for screwing into the high-pressure fuel pump. When checking, the engine must...

Removal and installation the intake manifold — model 525tds
The intake manifold must be removed with a chain to provide access to other components, for example when working on the fuel supply system. Removal Remove the...

Injection system device with a high-pressure common fuel line (Common-Rail)
Model 530d 1 - high pressure lines for injectors of cylinders 1, 3 and 5 2 - high pressure lines for injectors of cylinders 2, 4 and 6 3 - injectors for...

High pressure fuel pump device
Model 525tds 1 - segment key 2 - sealing ring 3 - high pressure fuel pump 4 - fuel supply switch (electromagnetic valve) 5 - cyclic feed regulator...

Technical characteristics of preheating and fuel supply systems
Model 525tds

Diagnostics of faults in diesel engine injection systems
Before detecting a fault based on diagnostics, the following prerequisites must be met: conditions for starting errors are excluded. There must be fuel in the...

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Similar sections for other types of BMW cars:
Power unit: Fuel system (diesel) BMW 3 Series E46 (1998-2006)
Power unit: Fuel system (diesel) BMW 7 Series E38 (1994-2001)

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