New Generation N62 Engine Chapter 6 P.5
Course Contents/Background Material
© BMW AG, Service Training
- Tank ventilation
Optimum ventilation of the tank system ensures trouble-free
refuelling, and that no vacuum can develop during operation.
The ventilation system consists of:
- Two service vent valves (left/right 16)
- A filling ventilation valve (30)
- A hose to the fuel expansion tank (24)
- Two rollover valves in the fuel expansion tank (11+28)
- A service vent hose (13)
- An activated-carbon filter with hoses (9)
- A dust and spider filter (12)
Tank ventilation components
- Service vent (16):
The service vent valve (16) on the right side of the tank consists
of a float which locks the ventilation while fuel is being admitted
(ball valve).
The service vent valve (16) ensures that no fuel enters the venti-
lation pipe when the vehicle is on an incline. A simple ventilation
connection piece (16) is located in the left tank chamber.
Both service vent valves (16) ensure that no air cushions form in
the lower positions of the tank.
To Next Page
Loading...
Need help?
General
