BMW 3: Fuel supply
BMW 3 Series G20 (2018-2025) 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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Connections
Connections, electrical machine
Transmission bell housing
Temperature sensor
Coolant ducts
Connection for coolant (transmission oil)
Electrical connection, rotor position sensor
High-voltage connection
There are four connections of the electrical machine on the housing of the
automatic tra
USB connection
General information
Mobile devices with a USB port are connected to
the USB interface.
Mobile phones.
Audio devices such as MP3 players.
USB storage devices.
Common file systems are supported. FAT32
and exFAT are the recommended formats.
A connected USB storage device will be supplied
with ch
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