Removing Air Box For Throttle Housing (Y-Shaped Pipe Ahead Of Throttle Valve)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2016 Porsche Panamera, 2015 Porsche Panamera, 2014 Porsche Panamera, 2013 Porsche Panamera, and 2012 Porsche Panamera. However, it is still accessible from the selected car via links, so may be relevant.

Naturally aspirated engines =>

On naturally aspirated engine: Loosen the screw-type clamps and pull off intake pipes and Y-shaped pipe -3, 1 or 2 - .

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Intake pipes

Turbo engines =>
Disconnect connector -1- for boost pressure sensor.

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Boost pressure sensor
Lever off clip under the Y-pipe using a screwdriver.

Release both locking pins on the Y-shaped pipe in a clockwise direction and pull them off. Pull Y-shaped pipe off the throttle housing.

Fig 1: Turbo Pressure Pipes Ahead Of Throttle Valve Components Location

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Turbo pressure pipes ahead of thro tie valve

1	Pressure pipe
2	Y-shaped pipe
4	PCV line (positive crankcase ventilation); hose connector fitted in check valve or Y-shaped pipe, depending on equipment => Important! Only loosen connections if you intend to replace them and replace clamps! Set components down with the ventilation pipes and lines connected.
5	Control line for ambient air line

Either release the clips on the plug-in connection -1- for the charge air cooler if necessary and pull the pressure pipes of the charge-air cooler. Turn the Y-shaped pipe with pressure pipes fitted around and detach the control line -5- , which is clipped on.

Or loosen the screw-type clamps between the Y-shaped pipe and pressure pipes and turn the Y-shaped pipe around and detach the control line -5- , which is clipped on.