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Left Or Right Front Brake Caliper: Disassembly

WARNING: This page does not describe the selected car, but rather 92 other vehicles, including the 2002 BMW Z3, 2002 BMW M Roadster, 2002 BMW M Coupe, 2001 BMW Z3, and 2001 BMW M5. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove caliper. See CALIPER ASSEMBLY .
  2. Remove pads from caliper. Remove caliper piston retaining ring (if equipped) and dust boot. Insert wooden block in caliper cavity. See Fig 1.
  3. WARNING: When pressing out brake caliper piston large forces occur. Be careful of fingers.
  4. Slowly apply air pressure to fluid inlet of caliper to force out piston. To protect piston, place a protective plate (hard wood or hard felt) in caliper recess.
  5. Check guide sleeves (5), fitting repair-kit guide sleeve if necessary. See Fig 2.
  6. Remove sealing ring carefully with a plastic needle. See Fig 3.
  7. Thoroughly inspect cylinder bore, piston and flange surfaces. Machining of cylinders and pistons is not permitted.
Fig 1: Pressing Out Piston
G00103296Courtesy of BMW OF NORTH AMERICA, INC.
Fig 2: Locating Guide Sleeves
G00103297Courtesy of BMW OF NORTH AMERICA, INC.
Fig 3: Removing Sealing Ring
G00103298Courtesy of BMW OF NORTH AMERICA, INC.