34 52 516 Removing and installing/replacing DSC control unit

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2014 BMW X6, 2013 BMW X6, 2012 BMW X6, 2011 BMW X6, and 2010 BMW X6. 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). See 61 35... NOTES ON ESD PROTECTION (ELECTRO STATIC DISCHARGE) .

Necessary preliminary tasks:

Remove hydraulic control unit

Release screws (1) and remove holder (2).

Installation:

Tightening torque 34 51 4AZ . See 34 51 SLIP CONTROL SYSTEM (DSC) .

Fig 1: Identifying Convert Holder With Screws

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Risk of damage to the contacts when removing and installing the hydraulic control unit.

Release screws (1) and carefully detach control unit (2) towards top.

Fig 2: Identifying Control Unit Screws

Courtesy of BMW OF NORTH AMERICA, INC.

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.

If necessary, clean sealing surface (1) with a plastic scraper or a fluff-free cloth.

Fig 3: Cleaning Sealing Surface With Plastic Scraper

Courtesy of BMW OF NORTH AMERICA, INC.

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).

Fig 4: Identifying Valve Coils And Gasket With Control Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Make sure screws are inserted evenly and DSC control unit rests on hydraulic control unit.

Replace screws.

Observe tightening sequence (1-4).

Tightening torque 34 51 1AZ . See 34 51 SLIP CONTROL SYSTEM (DSC) .

Fig 5: DSC Control Unit Bolts Tightening/Loosening Sequence

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Carry out programming/coding using BMW scan tool.
Steering angle sensor adjustment . See 61 31 996 CARRYING OUT STEERING ANGLE SENSOR ADJUSTMENT .
Mix-up check of brake lines
Function check of hydraulic control unit