34 31 505 Removing and installing/replacing master brake cylinder for DSC
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2016 BMW 328i xDrive, 2016 BMW 328d xDrive, 2015 BMW 328i xDrive, 2015 BMW 328d xDrive, and 2014 BMW 328i xDrive. However, it is still accessible from the selected car via links, so may be relevant.
Special tools required:
Necessary preliminary work:
- Read and comply with GENERAL NOTES .
- Remove EXPANSION TANK .
After completing repair work:
IMPORTANT:
Before beginning work, fully press the brake pedal several times to reduce the vacuum pressure in the brake servo.
IMPORTANT:
Do not bend brake lines.
Unfasten brake lines (1).
Installation note:
Tightening torque: 34 32 1AZ .
Close off brake lines and brake master cylinder with seal plugs 32 1 270 .
Release nuts (2) and feed brake master cylinder out of brake booster.
Installation note:
Replace self-locking nuts.
Tightening torque: 34 31 1AZ .
Installation note:
Replace sealing ring.
Installation note:
When inserting the brake master cylinder (2) into the brake booster (1), make sure the pressure rod of the brake booster and that of the brake master cylinder meet each other on one level.