Removing Hot-Film Mass Air Flow Sensor

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2018 Porsche Cayenne, 2017 Porsche Cayenne, 2016 Porsche Cayenne, 2015 Porsche Cayenne, and 2014 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.

Pull off cable plug on mass air flow sensor.

Fig 1: Disconnecting Cable Plug From Air Flow Sensor
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Loosen hose clamp of connecting tube to the air flow sensor and carefully press in the two plastic clips on the air cleaner side. Disconnect air flow sensor from the connecting tube. If necessary, lever out with a small screwdriver. -arrow-

Fig 2: Loosening Hose Clamp Using Screwdriver
Courtesy of PORSCHE CARS NORTH AMERICA, INC.