BMW 3: Fuel supply
BMW 3 Series G20 (2018-2024) Training manual / Drive Components / Fuel supply
For the operation of the combustion engine, the G20 PHEV is equipped with a pressurized fuel tank. As a result during purely electric driving it is guaranteed that the gasoline fumes remain in the pressurized fuel tank. Only with the operation of the combustion engine is fresh air drawn in by the carbon canister for purging and the gasoline fumes are directed to the combustion chamber.
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Components and their installation location
G20 PHEV components of the fuel supply in European version
Carbon canister
Pressurized fuel tank (in cast aluminum housing)
Fuel filler flap with cover
Fuel tank isolation valve
Cable for
System wiring diagram
G20 PHEV, system wiring diagram for fuel supply
Integrated supply module
Digital Motor Electronics (DME)
Shutoff valve purge air line (only for US version)
Body Domain Controller (BDC)
Fue
Refuelling
The pressurized fuel tank must be vented before refuelling. To initiate the
refuelling procedure, the
button in the driver's door first needs to be operated. The button is not active
when the vehicl
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Load point increase
Raising the load of the combustion engine at consistent engine speed is
called load point increase.
This results in an increase in performance and the option to operate the
combustion engine in
the optimal range. The arising resistance, which counteracts the combustion
engine, must be
compensate
Overview
With the G20 PHEV the already familiar Generation 4.0 high-voltage battery
unit with the designation
SP41 is used. The lithium-ion battery has the same basic design as the
Generation 3.0 SP06 high-
voltage battery unit. The same can be found in the G12 PHEV and also in the G30 PHEV.
The
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