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Home >> BMW >> 2009 >> 650i 2D Convertible, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1808 (Brakes - Repair) >> Electronic Components >> 34 35 001 Replacing a brake pad sensor

34 35 001 Replacing a brake pad sensor

WARNING: This page is about a different car, the 2010 BMW 550i, 2009 BMW 550i, and 2008 BMW 550i. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: To reset sensor light, see BRAKE PAD WARNING LIGHT .

Necessary preliminary tasks: 

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.

Open cover (1) on plug housing (3).

Unclip lead of brake pad sensor (2) from plug housing (3).

Disconnect associated plug connection of lead from brake pad sensor (2).

Expose lead for brake pad sensor up to brake pad.

Fig 1: Identifying Plug Housing, Brake Pad Sensor And Screws
G04726672Courtesy of BMW OF NORTH AMERICA, INC.

Press clip (1) together and detach brake pad sensor (2) in direction of arrow from brake pad (3).

Installation: 

Make sure clip (1) and brake pad sensor (2) are correctly seated in brake pad (3).

Fig 2: Pressing Clip And Detach Brake Pad Sensor
G04726673Courtesy of BMW OF NORTH AMERICA, INC.