BMW 3: Exhaust System
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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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
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
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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General information
More than one assistance function can be active
at the same time.
The following assistance functions can be manually
activated:
"Parking aid lines".
"Obstacle mark.".
"Car wash".
The following assistance functions are automatically
displayed:
Side protection.
Door openin
General information
Depending on the national-market version, the
destinations are automatically stored as received
destination and can be applied in the destination
guidance, if they were transferred to the vehicle
via the BMW Connected app.
For example, destinations that were sent from
the Concie