Removing Pressure Regulator

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.

Fig 1: Identifying Left And Right Connection Unit

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Right connection unit with pressure regulator
Left connection unit with fuel filter

Disconnect all connections apart from the fuel line -3- on the underside of the right connection unit.
The fuel line -3- cannot be disconnected from the pressure regulator (right connection unit).

Fig 2: Identifying Fuel Line On Pressure Regulator
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Disconnect the fuel line -3- from the left connection unit.

Fig 3: Identifying Fuel Line On Left Connection Unit
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Attach a piece of wire or similar item to the fuel line in order to pull the line back through the fuel tank during installation.
Remove the right connection unit (with pressure regulator) completely.