Impact Guard, Removing And Installing: Removing

-- Remove the bolts -arrows- on the lower section of the bumper cover.

Courtesy of AUDI OF AMERICA, LLC

TIP: 

The quantity of bolts -arrows- varies depending on the model.

-- Release the retainers -arrows-.

Courtesy of AUDI OF AMERICA, LLC

-- Remove the impact guard -1- forward from lower section of the bumper cover -2-.