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 Teleservices

    Concept Teleservices are services that help to maintain vehicle mobility. General information The offering depends on the equipment version of the vehicle and the country-specific variant. For further information on the available services, the vehicle manufacturer recommends contacting a service ce

     Fuel recommendation

    General information Depending on the region, many gas stations sell fuel that has been customized to winter or summer conditions. Fuel that is available in winter, for instance helps make a cold start easier. Gasoline General information For the best fuel efficiency, the gasoline should be sulfur-fr

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