34 33 071 Replacing vacuum hose for brake booster (N43)

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Necessary preliminary tasks:

READ AND COMPLY WITH GENERAL INFORMATION .
Remove lower section of microfilter housing
Remove ignition coil cover

IMPORTANT: Before beginning work, fully press the brake pedal several times to reduce the vacuum pressure in the brake servo. This makes it easier to detach the vacuum hose.

Fig 1: Pulling Vacuum Line And Quick-Release Fastener

Courtesy of BMW OF NORTH AMERICA, INC.

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

Unlock quick-release coupling (1) and detach vacuum line.

Disconnect vacuum hose (2) from vacuum line.

Release vacuum hose at clamp (3) and remove.

Fig 2: Identifying Quick-Release Coupling, Vacuum Hose And Clamp

Courtesy of BMW OF NORTH AMERICA, INC.