Air Cleaner Housing: Description and Operation

Intake System

Air Filter







On the new Panamera the air filter housing is located under the front apron (1). To access you must remove the front apron to change the air filter element.







The recommended replacement interval will be 80,000 miles or every 4 years.

In the naturally aspirated engines, the 2 air ducts from the air filter housing are joined before the electronic accelerator.

Intake System for Naturally Aspirated Engine

Like the Cayenne GTS, the Panamera S is equipped with a throttle valve (electronic accelerator) with a diameter of 82 mm (Cayenne S 76 mm). The new intake manifold is provided with a mounting at the rear for the new pressure sensor for load detection.










The intake system with variable intake manifold combines the advantage of a long intake manifold - higher torque at low rpm - with that of a short one: high specific output in the upper rpm range. For this purpose, the resonance intake system uses the air mass oscillations in the intake tract, dependent on the engine speed, to achieve better volumetric efficiency of the engine. Depending on the position of the intake manifold flap, this permits realization of a high torque curve in conjunction with the optimized intake duct geometry.

The DME control unit controls the electro-pneumatic switching valve, which switches a vacuum to the diaphragm cell in order to switch to the long intake manifold length at low engine speeds. Switching to the short intake manifold takes place as from mid-range engine speeds. The proven production process from the Cayenne has made it possible to manufacture the multi-part intake system from plastic to achieve the lowest possible weight.

Intake System for Turbo Engine

In the turbo engine, the intake air is routed from the air-cleaner housing via the separate air ducts on the left and right directly to the intake side of the respective turbocharger.







After the compressor, the compressed and heated air is cooled in the charge-air coolers on the left and right and then routed together again ahead of the electronic accelerator. Cooling of the charge air ensures high cylinder charging and reduced component temperatures.










The intake system of the Panamera Turbo does not require any flaps since the charge effect is produced by the two turbochargers. This means that the short intake manifold lengths are effective for the entire map.

Deceleration air control is activated in deceleration mode. For this purpose, a connection is produced between the pressure side and suction side of the intake air on each turbocharger. Activation takes place when the DME control unit switches the electric switching valve (installed below the intake manifold). The vacuum then opens the diaphragm cells for deceleration air control on the left and right.