34 52 516 Removing and installing/replacing DSC control unit
WARNING: This page does not describe the selected car, but rather 21 other vehicles, including the 2017 BMW 550i GT xDrive, 2017 BMW 535i GT xDrive, 2017 BMW 535i GT, 2016 BMW 550i GT xDrive, and 2016 BMW 535i GT xDrive. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DAMAGE (ESD PROTECTION)
.
Necessary preliminary work:
- Remove HYDRAULIC UNIT .
IMPORTANT:
Maintain conditions of absolute cleanliness.
Unclip brake lines (1) from holder (2).
Unfasten brake lines (1).
Installation note:
Tightening torque 34 32 1AZ .
IMPORTANT:
Risk of damage to the contacts when removing and installing the hydraulic unit.
Release screws (1) and carefully detach DSC control unit (2) towards top.
IMPORTANT:
Cleaning with compressed air, chemical solvents and sharp-edged objects is not permitted.
Do not touch pressure sensor contacts (2) with your fingers or clean the contacts.
Do not touch pressure sensor contacts (2) with your fingers or clean the contacts.
If necessary, clean sealing surface (1) with a plastic scraper or a fluff-free cloth.
IMPORTANT:
Do not touch valve coils (1) and pressure sensor contact springs (2) with your fingers, do not clean or readjust these components either.
Check gasket (3) for damage. If damaged, replace DSC control unit (4).
Installation note:
Make sure screws are inserted evenly and DSC control unit rests on hydraulic unit.
Replace screws.
Observe tightening sequence (1-4).
Tightening torque 34 51 1AZ .
Replacement:
- Carry out programming/encoding
- Brake line mix-up test:
- Function check of hydraulic unit
F04 only
- Carry out brake pedal travel sensor adjustment.