34 52 516 Removing and installing/replacing DSC control unit (N52 / N52K / N53 / N54)

WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2008 BMW 335xi, 2008 BMW 335i, 2008 BMW 328xi, 2008 BMW 328i, and 2008 BMW 323i. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Read and comply withNotes On Protection Against Electrostatic Damage (ESD Protection).

Necessary preliminary tasks:

Remove Hydraulic Unit

Replacement:

Carry out programming/coding
Steering Angle Sensor Adjustment
or

Carry out Adjustment For Active Front Steering
Mix-up check of brake lines
Function check, hydraulic unit

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

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

Fig 1: Identifying Control Unit And Retaining Screws

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Replace all seals in area (1).

Fig 2: Identifying DSC Control Unit Seals

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Keep sealing faces clean.

Replace screws.

Observe tightening sequence (1-4).

For tightening torque refer to 34 51 1AZ in 34 51 SLIP CONTROL SYSTEM (DSC) .

Fig 3: DSC Control Unit Bolts Tightening/Loosening Sequence

Courtesy of BMW OF NORTH AMERICA, INC.