34 35 001 Replacing a brake pad sensor (front)

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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 an already grounded pad wear sensor has to be replaced although the MINIMUM BRAKE PAD THICKNESS has not yet been reached, it is necessary to grind down the new sliding contact with a file to the same length as the sanded sliding contact.

Necessary preliminary work:

Remove front left WHEEL

Open housing cover.

Disconnect plug connection (1).

Fig 1: Identifying Plug Connection

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Unclip line (1) along line.

Fig 2: Identifying Unclip Line

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Disengage line from brake pad wear sensor from holder (1).

Pull brake pad wear sensor (2) in direction of arrow out of brake pad.

Installation note:

Make sure brake pad wear sensor (2) is correctly seated in brake pad and holder (1).

Fig 3: Identifying Brake Pad Wear Sensor And Holder

Courtesy of BMW OF NORTH AMERICA, INC.