34 52 516 Removing and installing/replacing DSC control unit

WARNING: This page is about a different car, the 2010 BMW 135i, 2009 BMW 135i, and 2008 BMW 135i. 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 unit .

IMPORTANT: Removing pump motor from valve block is not permitted!
Do not twist pump motor.

IMPORTANT: Secure provided retaining lugs (2) from repair kit for control unit with aid of plugs (3).

Close off pipe connections with plugs (1).

Fig 1: Identifying Plugs And Retaining Lugs

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Control unit must not come into contact with dirt or moisture.
Contacts must not be bent!

Release screws (1) and carefully remove control unit (2).

Installation:

Tightening torque 34 51 1AZ, see 34 51 SLIP CONTROL SYSTEM (DSC)

Fig 2: Removing Control Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Carry out programming/coding
Adjustment of steering angle sensor . See 61 31 996 CARRYING OUT STEERING ANGLE SENSOR ADJUSTMENT .
Mix-up check of brake lines