34 52 525 Replacing one front 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) .

NOTE: 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 bracket and disconnect.

Fig 1: Disconnecting Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Pull cable with rubber grommet out of bracket on spring strut.

Installation:

Ensure proper locking of plug connector and proper seating of rubber grommets.

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 31 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 ).