BMW 3: Fuel System
BMW 3 Series G20 (2018-2026) 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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Exterior
The model designation "iPerformance" and the associated exterior identifying
features are no longer
used for vehicles of hybrid generation 4.0.
G20 PHEV, identifying features of exterior trim
Charging socket cover
Model designation "330e" on the trunk on the right
Acoustic cover with "eD
Automatic climate control - adjusting the air flow manually
Concept
The air flow for climate control can be adjusted
manually.
General information
To adjust the air flow manually switch off AUTO
program first.
Operation
Press the lower or upper side of
the
button: decrease or increase air flow.
The selected air flow is shown on the climate
control display.
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