Removing and installing/replacing both front brake discs (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)

Special tools required: 

• 34 1 280 

Necessary preliminary tasks: 

• Remove WHEELS .
• Remove and clean BRAKE PADS .

Check minimum brake disc thickness: 

• Position special tool 34 1 280  at three measuring points in area (1) and measure.
• Compare measuring result and LOWEST VALUE with setpoint value.

If the brake discs are replaced, you must also fit new brake pads.

Brake discs may only be replaced in pairs (on each axle).

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1) and remove brake anchor plate (2) to the rear.

Installation note: 

Tightening torque 34 11 2AZ .

Courtesy of BMW OF NORTH AMERICA, INC.

If necessary, carefully tap on base of brake disc chamber with a rubber mallet.

Clean contact surface of brake disc at wheel hub thoroughly and remove traces of corrosion.

Unevenness on contact surface may result in distortion of brake disc!

Release screw (1) and remove brake disc (2).

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Replace screw.

Tightening torque 34 11 1AZ .

After installation: 

• Read and comply with NOTES  on breaking in new brake discs/brake pads.