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34 35 001 Replacing A Brake Pad Sensor (Front)

WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: The brake pad wear sensor must be replaced once it has been removed (brake pad wear sensor loses its retention capability in the brake pad).
If a brake pad sensor that has already been ground has to be replaced even though the MINIMUM BRAKE PAD THICKNESS has not yet been reached, you must observe the following: The new sliding contact must be filed down with a file to the same length as the ground sliding contact.

Necessary preliminary tasks: 

Disengage cable guides (2).

Open cover (1) on plug housing.

Disconnect plug connection.

Disengage cable from cable guide (3).

Fig 1: Cable Guides And Cover On Plug Housing
G04794749Courtesy of BMW OF NORTH AMERICA, INC.

Pull brake pad sensor (1) in direction of arrow out of brake pad.

Installation: 

Make sure brake pad sensor (1) is correctly seated in brake pad.

Disengage cable of brake pad sensor from holders (2).

Fig 2: Brake Pad Sensor And Holders
G04794750Courtesy of BMW OF NORTH AMERICA, INC.