Rear Heat Shield For Longitudinal Member, Removing And Installing: Removing

-- Remove the plenum chamber bulkhead. Refer to PLENUM CHAMBER BULKHEAD, REMOVING AND INSTALLING .

-- Remove the rear noise insulation. Refer to NOISE INSULATION, REMOVING AND INSTALLING, REAR .

Right: 

Courtesy of AUDI OF AMERICA, LLC

-- Remove the front muffler/front exhaust pipe. Refer to OVERVIEW - MUFFLER and OVERVIEW - EMISSIONS CONTROL SYSTEM .

-- Remove the lock washers -arrows-.

-- Remove the heat shield -1-.

Left: 

Courtesy of AUDI OF AMERICA, LLC

-- Remove the lock washers -arrows-.

-- Remove the heat shield -1-.