Technical data of the petrol injection system (DME) Nozzle Resistance test: 15-17 ohms. Leak test. At 3.0 bar system pressure (on 320i models since January 1995, 325i: 3.5 bar) no more than 1 drop of fuel should...
Diagnosis of malfunctions of the injection system Before starting troubleshooting using the following diagnostic table, the following test conditions must be met: no driver errors when starting the engine....
Working principle of diesel engine In a diesel engine, fresh air is sucked into the cylinders where it is highly compressed. Due to this, the temperature in the cylinders rises above the...
Turbocharger BMW diesel engines are equipped with a turbocharger. In the turbocharger on the bottom shaft there are two turbine wheels placed in separate housings. Turbines...
Fuel filter heating device To keep the fuel fluid at low outside temperatures, the fuel is heated. For this, an electric heating device is intended. Thanks to it, thickening of the fuel...
Checking the preheater/glow plugs Note: The DDE control unit has a memory that memorizes faults in the electrical part of the fuel injection system. After that, the service station polls the...
Checking the power and glow plug relay Before disconnecting the battery, interrogate the fault memory at the service station, as the stored faults try to. Disconnect the ground wire from the...
Glow plugs with burnt rods Burning of glow plug rods is often the cause of injection failure. Such damage is not caused by the candles themselves. Therefore, in such cases, it is...
High pressure fuel pump 1. High pressure fuel pump 2. Toothed pulley 3. Key 4. Washer 5. Nut M12 6. Stop solenoid valve 7. O-ring 8. Spring washer 9. Nut 10. Front nut M8 (2 pieces)...
Removal of air from the power system After emptying the fuel tank or after replacing parts of the fuel system, as a rule, bleeding from the fuel system is not required, since air is bled...
Removal and installation of spray nozzles Defective injectors can cause severe knocking in the engine, the cause of which can be mistakenly attributed to the destruction of the bearings. With such...