Porsche 911 2020, Owner'S Manual

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Refueling
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Emergency release of filler flap
Fig. 168: Emergency operation of the filler flap
In the case of a fault with the electrical release, the
filler flap can be opened manually:
1. Open the passenger’s door.
2. Reach into the door opening between the driver
door and fender. Pull the button to the point of
resistance.
The filler flap is unlocked mechanically.
3. To open the filler flap, press on the rear part of
the flap.
4. If the flap cannot be opened, repeat steps 2 and
3.
5. Once emergency release is complete, engage the
button in the catch provided. Visit a workshop.
Fuel Evaporation Control
Fuel tank venting
The evaporation chamber and the carbon canister
prevent fuel vapors from escaping to the atmos-
phere at extreme high outside temperatures, when
driving abruptly around curves and when the car is
parked at an incline or in any other non level position.
Vapor control system and storage
When the fuel tank is filled, vapors are collected in
the evaporation chamber by a vent line leading the
vapors to the carbon canister where they are stored
as long as the engine does not run.
Purge system
When the engine is running, the fuel vapors from the
canister will be mixed with fresh air from the ambi-
ent air of the canister. This mixture will be directed
to the intake air housing by the tank vent line, mixed
with the intake air and burned during normal
combustion.