34 52 525 Replacing One Front Pulse Sensor

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

Necessary preliminary tasks:

Open housing cover.

Disconnect plug connection (1).

Installation note:

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

Fig 1: Front Pulse Sensor Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Disengage line (1) along marked lines from holders.

Installation note:

Ensure proper locking of the holders and proper seating of the line in the brackets.

Fig 2: Disengage Line

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1) and withdraw pulse sensor (2) from bore hole.

Installation note:

Tightening torque: 31 51 3AZ .

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

Fig 3: Pulse Sensor From Bore Hole, Screw

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Prior to installation, check sensor head for damage and replace if necessary.