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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Rolling or pushing the vehicle
General information
In some situations, the vehicle is to roll without
its own power for a short distance, for instance in
a vehicle wash, or be pushed.
Engaging selector lever position N
1. Switch on drive-ready state while pressing on
the brake pedal.
2. If necessary, release the parking brake.
Headphones
Corded headphones
Headphones and compatible headsets can be
connected using a jack plug 1/8"/3.5 mm on the
rear CD/DVD/Blu-ray player.
Cordless headphones
General information
Suitable wireless headphones are available from
a dealer's service center or another qualified
service center or repair shop.
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