34 33 071 Replacing vacuum hose for brake booster (N62)

WARNING: This page is about a different car, the 2007 BMW 550i, 2006 BMW 550i, 2005 BMW 545i, and 2004 BMW 545i. However, it is still accessible from the selected car via links, so may be relevant.

Necessary Preliminary Tasks:

Read and comply with General Information. Refer to 34 00 ... GENERAL INFORMATION .
Remove lower section of microfilter housing. Refer to 64 31 061 REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT MICROFILTER HOUSING LOWER SECTION .
Remove acoustic cover.
Remove intake filter housing. Refer to 13 71 000 REMOVING AND INSTALLING/REPLACING INTAKE FILTER HOUSING .
Remove air intake hose with air-mass sensor.

IMPORTANT: Before starting work, press the brake pedal to the floor several times to reduce the vacuum pressure in the brake booster. This makes it easier to remove the PA pipe. Non-return valve and PA pipe are welded together and are replaced together as a single unit.

Detach non-return valve (1) from brake booster.

Fig 1: Locating Non-Return Valve

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Unclip vacuum line from fixture (1).

Unfasten hose clip (2).

Installation:

Replace hose clip.

Fig 2: Identifying Vacuum Line In Fixture

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Release retaining clips (1) and feed out vacuum line (2).

Fig 3: View Of Vacuum Line Retaining Clips

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