Towing Recognition Control Module -J345-, REMOVING AND INSTALLING: Removing

-- Open the left luggage compartment side trim panel cover.

-- If equipped, remove the Digital Sound System Control Module -J525- with the bracket. Refer to CONTROL MODULE/DIGITAL SOUND SYSTEM AMPLIFIER, REMOVING AND INSTALLING .

-- Disconnect the connectors -2 to 5-.

Courtesy of AUDI OF AMERICA, LLC

-- Release the retainer -arrow- and remove the towing recognition control module -1- from the frame.