34 33 071 Replacing Vacuum Hose For Brake Booster (N62)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2008 BMW 750i, 2008 BMW 750Li, 2007 BMW 750i, 2007 BMW 750Li, and 2006 BMW 750i. However, it is still accessible from the selected car via links, so may be relevant.
Necessary preliminary tasks:
- Read and comply with General Information See 34 00 ... GENERAL INFORMATION
- Remove design cover
- Remove air-mass flow sensor
IMPORTANT:
Before beginning work, fully press the brake pedal 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.
Remove microfilter (1).
Release screws and remove cover (1).
Detach non-return valve (2) from brake booster.
Installation:
Check seal in brake booster and replace if necessary.
Make sure cover engages properly.
Unfasten hose clip (1).
Detach PA pipe (2) with molded hose from vacuum pump.
Installation:
Replace hose clip.
Unclip holder (1).
Disconnect tank vent line at quick-release coupling (2) and lay back over vacuum line.
Feed out vacuum line (3) upwards by turning.