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 2017 BMW X3, 2016 BMW X3, 2015 BMW X3, 2014 BMW X3, and 2013 BMW X3. 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).

IMPORTANT: Maintain conditions of absolute cleanliness.

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

Disconnect plug connection (1).

Release screws (2) and carefully detach DSC control unit by pulling forward.

Fig 1: Removing DSC Control Unit

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Cleaning with compressed air, chemical solvents and sharp-edged objects is not permitted.
Do not touch or clean pressure sensor contacts with your fingers.

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

Fig 2: Identifying DSC Control Unit Sealing Surface

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Do not touch, clean or readjust valve coils (1) and pressure sensor contact springs with your fingers.

Check gasket (2) for damage. If damaged, replace DSC control unit (3).

Fig 3: Identifying DSC Control Unit, Readjust Valve Coils, Gasket

Courtesy of BMW OF NORTH AMERICA, INC.

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 .

Fig 4: DSC Control Unit Bolts Tightening/Loosening Sequence

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Carry out programming/encoding
Function check - hydraulic unit