LEMON Manuals: Even more car manuals for everyone
Home >> BMW >> 2017 >> M3 Automatic DCT Trans >> Repair and Diagnosis (Single Page) >> Brakes >> Parking Brake System >> Brakes - Repair (F80) >> 34 35 Electrical Components/Wear Indicator >> 34 35 001 Replacing a brake pad sensor (front)

34 35 001 Replacing a brake pad sensor (front)

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 wear 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 sanded sliding contact.

Necessary preliminary work: 

Removal: 

Fold the connector housing (1) up and disconnect the plug connection.

Detach the brake pad wear sensor from the brackets (2).

Installation note: 

Do not route/fix the brake pad wear sensor cable via the dust cap of the brake ventilation valve!

G10095900Courtesy of BMW OF NORTH AMERICA, INC.

Push together clamp and pull off brake pad wear sensor (1) from brake pad in direction of arrow.

G13692441Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Install brake pad wear sensor (1) in the brake pad in direction of arrow.

NOTE: Make sure clamp and brake pad wear sensor (1) are properly seated in brake pad.
G13692442Courtesy of BMW OF NORTH AMERICA, INC.

Attach brake pad wear sensor in brackets (2).

Connect plug connection and lock connector housing (1).

NOTE: Do not route/fix the brake pad wear sensor cable via the dust cap of the brake ventilation valve!
G10095900Courtesy of BMW OF NORTH AMERICA, INC.

Required follow-up work: