Left Or Right Front Brake Caliper: Reassembly

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 BMW M5, 2003 BMW 540i, 2003 BMW 530i, 2003 BMW 525i, and 2002 BMW M5. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Ensure piston is not tilted when installing.

Coat cylinder bore, piston, dust sleeve and sealing ring with a light coat of brake cylinder paste.
Install sealing ring in rear annular groove of cylinder bore.
Install dust boot on piston. Using wooden block, install piston and dust boot. See Fig 1.
Press brake lining fully outwards and insert spring (4). See Fig 2.
Only clean guide screws, do not grease. Check and replace if necessary. Tighten to specification. See TORQUE SPECIFICATIONS .
Install caliper. See CALIPER ASSEMBLY .

Fig 1: Pressing In Piston

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 2: Identifying Retaining Spring

Courtesy of BMW OF NORTH AMERICA, INC.