Emergency release cable on the latch, removing and installing:

Removing 

-- Remove the rear lid lower trim panel. Refer to REAR LID LOWER TRIM PANEL, REMOVING AND INSTALLING .

-- Pull the release cable -5- to the right in direction of -arrow- and open the coupling cover -6- at the same time the release cable nipple is disengaged.

Courtesy of AUDI OF AMERICA, LLC

-- Free up the coupling catch on the mount -4- and disengage to the left at the same time.

-- Remove the release cable bracket -2- from the mount.

-- Disengage the release cable nipple -3- from the latch.

-- Remove the release cable -1-.

Installing 

Install in reverse order of removal.