BMW 3: Exhaust System
BMW 3 Series G20 (2018-2026) Training manual / B46TU-B48TU Engines / Cooling System / 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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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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Safety information
Warning
High gross weight can overheat the tires, damage
them internally and cause a sudden drop in
tire inflation pressure. Driving characteristics
may be negatively impacted, reducing lane stability,
lengthening the braking distances and
changing the steering response. There is
Stretch of road
The stretch of road is evaluated by means of the navigation system data.
Detected situations
Top speed limitations
Bends
Traffic circles
Off ramps/exits
Turning-off priority roads
Red lights*
* Only with the optional equipment Driving Assistant Professional (SA 5AU).
For US version ve
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