BMW N62 Series User Manual

New Generation N62 Engine Chapter 6 P.7
Course Contents/Background Material
© BMW AG, Service Training
The air which is now free of hydrocarbon molecules escapes via
the dust and spider filter into the atmosphere. The layout of the
tank ventilation is designed such that trouble-free refuelling can
take place.
If the fuel level reaches the ventilation valve (30), the ball floats
and closes the ventilation pipe.
The tank pressure increases beyond the pump nozzle cut-out
pressure and switches it off. During fuel withdrawal, the fuel tank
system is ventilated in the reverse direction to prevent the
formation of a vacuum.

BMW N62 Series Specifications

General

Configuration	V8
Fuel type	Petrol
Valvetrain	DOHC 4 valves per cylinder
Torque Output	340–490 N⋅m (4.4L), 475-490 Nm (4.8L)
Compression Ratio	10.0:1 (4.4L), 10.5:1 (4.8L)
Engine Block Material	Aluminum
Cylinder Head Material	Aluminum
Cooling system	Water-cooled
Redline	6, 500 rpm