34 31 181 Removing and installing / replacing expansion tank for hydraulic brake actuation
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 BMW 528xi, 2010 BMW 528i, 2009 BMW 528xi, 2009 BMW 528i, and 2008 BMW 528xi. However, it is still accessible from the selected car via links, so may be relevant.
Necessary preliminary tasks:
Suck the brake fluid out of the expansion tank. Use suction bottle exclusively to draw off brake fluid.
IMPORTANT:
Do not reuse drawn out brake fluid.
Unfasten plug connection (1) and disconnect.
Release retaining screw (2).
Installation:
Tightening torque 34 31 3AZ .
Pull expansion tank vertically out of brake master cylinder.
Installation:
Check rubber plug in brake master cylinder for damage and replace if necessary.
Push the expansion tank vertically onto the master brake cylinder.