BMW 3 Owners & Service Manuals

BMW 3: Fuel preparation

The fuel preparation has again been adapted to meet the emission legislation requirements. The high pressure pump and the injectors have been revised and designed for an fuel injection pressure of 350 bar (5076 psi).

Fuel preparation
Overview of fuel preparation

  1. Fuel delivery line
  2. Rail pressure sensor
  3. Direct rail
  4. Quantity control valve
  5. High pressure pump
  6. Solenoid valve injector

Strict cleanliness must be observed when carrying out any work on the fuel system !

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     Fuel high-pressure pump

    The single-piston high pressure pump by Bosch, well-known from the B46 engine, is used. The high pressure pump HDP6 is driven by a triple cam which is attached to the exhaust camshaft. To be able to

     Direct rail

    Injector mounting Mounting bolts Plastic sleeve (not required to be reinstalled after taken apart for service) Holding clamp with bayonet fitting Rail Solenoid valve injector Casting lug Th

     Solenoid valve injector

    Measures at the solenoid valve injector The following graphic illustrates the differences between the HDVE5 and HDEV6 fuel injectors: Solenoid valve injectors Solenoid valve injector HDEV5 Soleno

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     Displaying Points of Interest on the map

    Concept The Points of Interest categories can be displayed on the map as symbols. Selecting categories 1. Press the button on the Controller. 2. Move the Controller to the right. 3. "Settings". 4. "Map settings". 5. "Points of interest on the map". 6. Select the desired setting. The display

     Ventilation

    Concept The air flow directions can be individually adjusted. Adjusting the ventilation General information The air flow directions can be adjusted for direct or indirect ventilation. Open the vents and position them to ensure effective climate control. Direct ventilation The air flow is directed t

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