3433071 Replacing vacuum hose for brake booster (N52 on brake booster)

Necessary preliminary tasks

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 Out Vacuum Line

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 Vacuum Hose, Vacuum Line With Fixture And Quick-Release Fastener

Courtesy of BMW OF NORTH AMERICA, INC.