Fuel, Exhaust & Engine Electrics
Page 2.25
Intake Air Side, Air Routing
General
The intake systems in all new Cayenne models have been redesigned for
direct fuel injection (DFI) in order to achieve a high torque curve. The air
cleaner elements must be changed every 72,000 miles (120,000 km)
or after 4 years according to the Technical Manual.
Note
Air filter replacement intervals have changed for M.Y. 2008 when
compared to the 2003-2006 Cayenne models.
Cayenne V6 Intake System
The illustration shows the intake system, from the air intake behind the
left headlight, the air filter housing with sound opening and the pipe
mass air flow sensor to the electronic throttle.
The redesigned intake manifold charging system offers considerably
improved filling for the V6 engine. This has resulted not only in an
optimal torque curve, but has also improved performance.
1 - Air intake behind the left headlight
2 - Air filter housing (with sound opening)
3 - Pipe mass air flow sensor
4 - To electronic throttle
5 - Intake system
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