34 52 535 Replacing a rear pulse generator

WARNING: This page is about a different car, the 2005 BMW 645Ci and 2004 BMW 645Ci. 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), refer to 61 35 ... NOTES ON ESD PROTECTION (ELECTRO STATIC DISCHARGE) .

Necessary preliminary tasks:

Remove rear wheel, refer to 36 10 300 REMOVING OR INSTALLING FRONT OR REAR WHEEL .
Read and comply with General Information, refer to 34 00 ... GENERAL INFORMATION .

Observe safety instructions on raising the vehicle, refer to 00 .. ... LIFTING VEHICLE WITH A LIFTING PLATFORM .

Open plug housing (1).

Pull plug connection (2) out of mounting and disconnect.

Fig 1: Disconnecting Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Pull cable out of brackets on swinging arm.

Installation:

Ensure proper locking of the plug connector and proper seating of the cable in the brackets.

Release hexagon socket head cap screw (1) and pull wheel speed sensor out of bore.

Fig 2: Removing Wheel Speed Sensor

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Tightening torque, refer to 34 51 6AZ in BRAKES - TIGHTENING TORQUES - 645CI .
Clean bore hole for pulse generator and grease with Staburags NBU 12/K lubricating grease (refer to OPERATING FLUIDS - BRAKES ).