BMW 3 Owners & Service Manuals

BMW 3: 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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 Stationary cooling

Owing to the fact that the air conditioning compressor in the G20 PHEV is electrically operated and that the high-voltage battery unit has high energy and power densities, a stationary climate control function is offered to the customer in the G20 PHEV. For stationary air conditioning,

 Removing the round high-voltage connector

The following figures show the approach for releasing the round high-voltage connector, as used for example on the high-voltage cable from the Electrical Machine Electronics to the convenience charging electronics. Depending on the installation location, different connectors may be used. They ar

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