Service Manual — page 436 of 715

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12-14 BRAKES
Calipers
Caliper Fluid Seal Damage Inspection
  The fluid seal (piston seal) [A] is placed around the pis-
ton to maintain clearance between the pad and the disc. If
the seal is in a poor condition, it could lead the pad to wear
excessively or the brake to drag, which may cause the tem-
perature of the discs or the brake fluid to increase.
• Replace the fluid seal if it exhibits any of the conditions
  listed below.
○Brake fluid leakage around the pad.
○Brakes overheat.
○Considerable difference in inner and outer pad wear.
○Seal and piston are stuck together.
  If the fluid seal is replaced, replace the dust seal [B] as
  well. Also, replace all seals every other time the pads are
  changed.

Caliper Dust Seal Damage Inspection
• Check  that the dust seals [A] are not cracked, worn,
  swollen, or otherwise damaged.
    If they show any damage, replace the dust seals with new
    ones.
      Pistons [B]
      Fluid Seals [C]

Rear Caliper Dust Boot and Friction Boot Damage
Inspection
• Check that the dust boot [A] and friction boot [B] are not
  cracked, worn, swollen, or otherwise damaged.
    If they show any damage, replace it.