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Home >> BMW >> 2007 >> 335i 2D Convertible, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (Brakes - Repair - E90/E91) >> 33 brake booster >> 34 33 071 Replacing vacuum hose for brake booster (N52 on vacuum pump)

34 33 071 Replacing vacuum hose for brake booster (N52 on vacuum pump)

WARNING: This page is about a different variant/trim than selected.

Necessary preliminary tasks: 

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 detach the vacuum hose.

Unclip vacuum line from fixture (2).

Unfasten hose clip (1).

Release hose clamp (3) and disconnect vacuum line.

Installation: 

Replace hose clamps.

Fig 1: Identifying Vacuum Pump Vacuum Line, Hose Clamp And Hose Clip
G04726669Courtesy of BMW OF NORTH AMERICA, INC.