34 52 525 Replacing one front pulse sensor

IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DISCHARGE (ESD PROTECTION) .

Necessary preliminary tasks:

Disengage cable guides (2).

Open connector housing (1), pull plug connection out of holder and disconnect.

Pull cable with rubber grommet out of holders (3).

Installation:

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

Fig 1: Identifying Cable Guides, Housing And Holders

Courtesy of BMW OF NORTH AMERICA, INC.

Disengage cable guides (1).

Release Torx socket screw (2) and pull pulse sensor (3) out of bore.

Installation:

Tightening torque 34 51 3AZ .

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

Fig 2: Identifying Cable Guides, Torx Socket Screw And Pulse Sensor

Courtesy of BMW OF NORTH AMERICA, INC.

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