51 47... Removing And Installing/Replacing Rear Left Or Right Ram-Air Lip

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2013 BMW 128i, 2012 BMW 128i, 2011 BMW 128i, 2010 BMW 135i, and 2010 BMW 128i. However, it is still accessible from the selected car via links, so may be relevant.

Release expander rivets (2).

Release screws (3) and remove lip (1).

Fig 1: Identifying Expander Rivets, Lip & Screws

Courtesy of BMW OF NORTH AMERICA, INC.