3452535 Replacing a rear pulse sensor

Necessary preliminary tasks

Slacken nut (1).

Pull wheel arch trim (2) gently to one side.

Disengage cable from holders (3).

Fig 1: Identifying Wheel Arch Trim With Holders And Slacken Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Installation:

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

Fig 2: Identifying Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Disengage cable from holders (1).

Unfasten socket head cap screw (2).

Withdraw wheel speed sensor (3) from bore hole.

Installation:

Tightening torque 34 51 4AZ, see 34 51 SLIP CONTROL SYSTEM (DSC) . .

Clean bore for pulse generator and lubricate with Staburags NBU 12/K grease.

Fig 3: Identifying Wheel Speed Sensor And Socket Head Cap Screw

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Check sensor head prior to installation for external damage, replacing if necessary.