34 52 525 Replacing one front pulse sensor

WARNING: This page does not describe the selected car, but rather 18 other vehicles, including the 2015 BMW Alpina B7L xDrive, 2015 BMW Alpina B7 xDrive, 2015 BMW 750i xDrive, 2015 BMW 750Li xDrive, and 2015 BMW 740Li xDrive. 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).

Necessary preliminary tasks:

Remove front WHEEL .
Read and comply with GENERAL INFORMATION .

Open housing cover.

Disconnect plug connection (1).

Installation note:

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

Fig 1: Identifying Plug Connection

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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: Identifying Front Pulse Sensor 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.

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

Fig 3: Identifying Pulse Sensor And Screw

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