Cayenne S (9PA) V8-4.5L (2003)
9. Release the fastening bolts on the throttle body. To do this, turn the right-hand bolt 45° counterclockwise, the left bolt 45° clockwise.
10. Remove the fastening bolts. To do this, take hold of the bolt by the rubber ring with pliers and pull it out.
11. Pull off the Y pipe from the throttle body.
12. Disconnect the air flow sensors. To do this, undo the hose clamps on the left and right on the bellows and pull the bellows off the air flow sensors.
13. Remove the vacuum line on the Y pipe. To do this, press the button and disconnect the vacuum line.