Necessary preliminary tasks

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 BMW 328xi, 2012 BMW 328i, 2011 BMW 328xi, 2011 BMW 328i, and 2010 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

Read and comply with GENERAL INFORMATION .
Remove LOWER SECTION OF MICROFILTER HOUSING

IMPORTANT: Before beginning work, fully press the brake pedal several times to reduce the vacuum pressure in the brake booster.

Unlock quick-release fastener (1) and pull out vacuum line (2).

Fig 1: Pulling Vacuum Line And Quick-Release Fastener

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten hose clip or quick-release fastener (1).

Installation:

Replace hose clip.

Pull off vacuum hose (2).

Unclip vacuum line (4) from fixture (3) and feed out.

Fig 2: Identifying Quick-Release Fastener, Vacuum Line Hose And Fixture

Courtesy of BMW OF NORTH AMERICA, INC.