BMW 3: Fuel System
BMW 3 Series G20 (2018-2025) Training manual / B46TU-B48TU Engines / 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 preparation system consists of the fuel filter lines in the engine compartment and all the fuel system parts on the engine.
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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
Direct rail
Injector mounting
Mounting bolts
Plastic sleeve (not required to be reinstalled after taken apart for
service)
Holding clamp with bayonet fitting
Rail
Solenoid valve injector
Casting lug
Th
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Hazard warning flashers
The button is located in the center console.
The red light in the button flashes when the hazard
warning flashers are activated.
Warning triangle
The warning triangle is located on the inside of
the trunk lid.
Press on the release, arrow 1, and swivel the
cover down, arrow 2.
First-aid kit
Gener
Washing the vehicle
General information
Regularly remove foreign objects such as leaves
in the area below the windshield when the hood
is raised.
Wash your vehicle frequently, particularly in winter.
Intense soiling and road salt can damage the
vehicle.
Steam blaster and high-pressure
washer
Safety information
NOTICE
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