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).
Overview of fuel preparation
- Fuel delivery line
- Rail pressure sensor
- Direct rail
- Quantity control valve
- High pressure pump
- 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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DTC Dynamic Traction
Control
Concept
DTC is a version of the DSC Dynamic Stability
Control where forward momentum is optimized.
The system ensures maximum headway on special
road conditions or loose road surfaces, for instance
unplowed snowy roads, but with somewhat
limited driving stability.
General information
When DTC is ac
Connecting mobile devices
to the vehicle
Concept
Various connection types are available for using
mobile devices in the vehicle. The connection
type to select depends on the mobile device and
the desired function.
General information
The following overview shows possible functions
and the suitable connection types for them. The
scope of fu
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