BMW 3 Owners & Service Manuals

BMW 3: Exhaust System

Exhaust turbocharger

Exhaust turbocharger
Exhaust turbocharger

The exhaust turbocharger can be replaced individually and is exclusively made of steel. The boost charge pressure is still controlled by an electrical wastegate valve.

The Turbo on the B46TU and B48TU are different in design.

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     Fuel System

    The fuel system is made up of the fuel supply and fuel preparation systems. The fuel supply includes the fuel tank with all mounted parts and the fuel lines up to the engine compartment. The fuel p

     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 3

     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

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     BMW Accident Assistance

    Concept BMW Group Accident Assistance can be contacted if assistance is needed in the event of an accident. General information If the vehicle sensors detect a minor to moderately severe accident, which did not trigger any airbags, a Check Control message appears on the instrument cluster. In additi

     Services

    General information If the vehicle has a wireless network connection, this enables data to be exchanged between the vehicle and other systems. The wireless network connection is realized via an in-vehicle transmitter and receiver unit or via personal mobile devices brought into the vehicle, for inst

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