Regulator Valve, Removing And Installing, 6.0L (V12): Removing

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2015 Audi Q7, 2014 Audi Q7, 2013 Audi Q7, 2011 Audi Q7, and 2010 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Regulator Valve Components Location

Courtesy of AUDI OF AMERICA, LLC

Follow all safety precautions, refer to WORKING ON FUEL SYSTEM .

Follow the guidelines for clean working conditions, refer to CLEAN WORKING CONDITIONS .

-- Open the clamps -3- and unclip the fuel lines -2-.

-- Remove the bolts -1, 4, 5, 8- and the nut -7-.

-- Remove the fuel filter -9- with the fuel hoses still connected and move it to the side.

-- Remove the bracket -6- with the clamps.

-- Place a clean cloth under the separating location to catch any fuel that may leak out.

WARNING:

Very hot fuel can burn your skin.

In extreme cases, the fuel lines and the fuel itself in vehicles with a common rail engine can be as hot as 100 °C after the engine has been turned off. Let the fuel cool down before opening any line connections otherwise there is a danger of scalding.
Wear safety gloves
Wear protective eyewear.

There is a risk of injury because the fuel is under pressure.

To reduce pressure in fuel system, lay a clean cloth around the connector and carefully loosen connector.

-- Cut the cable tie and remove foam bracket -1- from the regulator valve.

Fig 2: Regulator Valve Components Location

Courtesy of AUDI OF AMERICA, LLC

-- Mark the installed position of the fuel hoses.

-- Remove the fuel hoses -2, 3, 4 and 5- from the regulator valve -6- and then remove the regulator valve.

-- Repeat the process on the regulator valve -7-.