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Caliper Assembly: Removal

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  1. Raise and support vehicle. Remove wheel(s).
  2. Lift out retaining spring (1). See Fig 1.
  3. Disconnect pad wear sensor electrical lead. On the rear it is on the right side. On the front it is on the left.
  4. Remove plastic plugs (2). See Fig 2.
  5. Lift brake hose out of bracket.
  6. Release guide screws located under plastic plugs with special tool (34 1 080). Withdraw brake caliper backwards.
  7. NOTE: When forcing piston back, observe brake fluid level in supply tank. Overflowing brake fluid will damage the paintwork.
  8. Turn piston fully back with special tool 34 1 050. See Fig 4.
  9. Remove outer brake lining. See DISC LINING .
  10. NOTE: Grease contact surfaces on brake caliper at top and bottom.
  11. Clean contact faces (1,2) of brake lining hammer heads/brake caliper housing and coat with anti-squeak compound. See Fig 5.
  12. Clean contact face (3) of brake caliper and apply a thin coating of anti-squeak compound. See Fig 6.
  13. Clean brake caliper mounting bracket at hammer head guides and apply a thin coating of anti-squeak compound.
Fig 1: Locating Retaining Spring
G00103289Courtesy of BMW OF NORTH AMERICA, INC.
Fig 2: Locating Plastic Plugs
G00103290Courtesy of BMW OF NORTH AMERICA, INC.
Fig 3: Exploded View Of Single Piston Caliper
G92F00633Courtesy of BMW OF NORTH AMERICA.
Fig 4: Forcing Piston Back
G00103291Courtesy of BMW OF NORTH AMERICA, INC.
Fig 5: Locating Contact Faces
G00103293Courtesy of BMW OF NORTH AMERICA, INC.
Fig 6: Locating Contact Face Three
G00103294Courtesy of BMW OF NORTH AMERICA, INC.