When to replace the Brake Discs on your TOYOTA 4RUNNER
Recommended replacement interval for the part category Brake disc : 50000 km
Important!
This replacement procedure can be used for:
TOYOTA 4 RUNNER (UZN21_, KZN21_, GRN21_) 4.7 4WD (UZN215), TOYOTA 4 RUNNER (UZN21_, KZN21_, GRN21_) 4.0 (GRN210) View more

The steps may slightly vary depending on the car design.

This video shows the replacement procedure of a similar car part on another vehicle

Tools
Replacement: brake discs – TOYOTA 4 RUNNER (UZN21_, KZN21_, GRN21_). List of the tools you'll need:
Wire brush
WD-40 spray
Copper grease
Drive socket # 17
Wheel impact socket #21
Brake caliper wind back tool
Torque wrench
Tap wrench
Rubber mallet
Crow bar
Wheel chock
Replacement: brake discs – TOYOTA 4 RUNNER (UZN21_, KZN21_, GRN21_). AUTODOC recommends:
  • Replace the brake disks on the car TOYOTA 4 RUNNER (UZN21_, KZN21_, GRN21_) in complete set for each axis. Regardless of the state of components. This will ensure even braking.
  • The replacement procedure is identical for both brake disks on the same axle.
  • When changing the brake discs, always replace the brake pads.
  • Warning! Shut down the engine before starting any work – TOYOTA 4 RUNNER (UZN21_, KZN21_, GRN21_).
Carry out replacement in the following order:
  1. Step 1
    Open the bonnet. Unscrew the brake fluid reservoir cap.
    Step 2
    How to change Brake Discs on Toyota 4runner UZN210 2002 - free PDF and video manuals
    Secure the wheels with chocks.
  2. Step 3
    How to replace TOYOTA 4 RUNNER (UZN21_, KZN21_, GRN21_) 4.0 4WD (GRN215) 2003 Brake Discs - step-by-step manuals and video guides
    Loosen the wheel mounting bolts. Use wheel impact socket #21.
  3. Step 4
    Raise the rear of the car and secure on supports.
    Step 5
    Toyota 4runner UZN210 4.7 4WD (UZN215) 2004 Brake Discs replacement: free workshop manuals
    Unscrew the wheel bolts.
    Replacement: brake discs – TOYOTA 4 RUNNER (UZN21_, KZN21_, GRN21_). Tip from AUTODOC:
    To avoid injury, hold up the wheel when unscrewing the bolts.
  4. Step 6
    Changing Brake Discs on TOYOTA 4 RUNNER (UZN21_, KZN21_, GRN21_) 4.7 (UZN210_) 2005 by yourself
    Remove the wheel.
  5. Step 7
    How to remove TOYOTA 4RUNNER 4.7 4WD (UZN215_) 2006 Brake Discs - online easy-to-follow instructions
    Clean the brake caliper fasteners. Use a wire brush. Use WD-40 spray.
  6. Step 8
    How to replace Brake Discs on TOYOTA 4 RUNNER (UZN21_, KZN21_, GRN21_) 2007: download PDF manuals and video instructions
    Spread the brake pads. Use a crowbar.
  7. Step 9
    How hard is it to do yourself: Brake Discs replacement on Toyota 4runner UZN210 4.0 (GRN215) 2008 - download illustrated guide
    Unscrew the brake caliper fastening. Use a drive socket #17. Use a tap wrench.
  8. Step 10
    Need to know how to renew Brake Discs on TOYOTA 4RUNNER 2009? This free workshop manual will help you to do it yourself
    Remove the brake caliper.
    AUTODOC recommends:
    Tie the caliper to the suspension or to the body with a wire without disconnecting from the brake hose to prevent depressurization of the brake system.Make sure that the brake caliper is not hanging on the brake hose.Don't press the brake pedal after the brake caliper has been removed. As a result, the piston can fall out from the brake cylinder, and brake fluid leakage and depressurization of the system may occur.
  9. Step 11
    Changing of Brake Discs on Toyota 4runner UZN210 2002 won't be an issue if you follow this illustrated step-by-step guide
    Remove the brake pads. Use a crowbar.
  10. Step 12
    TOYOTA 4RUNNER 4.0 4WD (GRN215) Brake Discs replacement: online guides and video tutorials
    Clean the brake caliper bracket fasteners. Use a wire brush. Use WD-40 spray.
  11. Step 13
    Replacing Brake Discs on Toyota 4runner UZN210 2004 4.0 4WD (GRN215) by yourself
    Unscrew the caliper bracket fastening. Use a drive socket #17. Use a tap wrench.
  12. Step 14
    4 RUNNER (UZN21_, KZN21_, GRN21_) 4.7 4WD (UZN215_) 2005 Brake Discs DIY replacement workshop manual
    Remove the caliper bracket.
  13. Step 15
    How to change Brake Discs on TOYOTA 4 RUNNER (UZN21_, KZN21_, GRN21_) 2006 - tips and tricks
    Clean the brake disk surface. Use a wire brush. Use WD-40 spray.
  14. Step 16
    Step-by-step recommendations for DIY replacement Toyota 4runner UZN210 2007 4.7 4WD (UZN215_) Brake Discs
    Remove the brake disc. Use a crowbar. Use a rubber mallet.
  15. Step 17
    DIY replacement of Brake Discs on TOYOTA 4 RUNNER (UZN21_, KZN21_, GRN21_) 4.0 (GRN210) 2008 is not an issue anymore with our step-by-step tutorial
    Clean the hub. Use a wire brush. Treat the contacting surface. Use copper grease.
  16. Step 18
    How to change Brake Discs on Toyota 4runner UZN210 2002 - free PDF and video manuals
    Install the brake disc.
  17. Step 19
    How to replace TOYOTA 4 RUNNER (UZN21_, KZN21_, GRN21_) 4.0 4WD (GRN215) 2003 Brake Discs - step-by-step manuals and video guides
    Clean the brake caliper bracket from dirt and dust. Use a wire brush. Use a brake cleaner.
    AUTODOC recommends:
    Replacement: brake discs – TOYOTA 4 RUNNER (UZN21_, KZN21_, GRN21_). After applying the spray, wait a few minutes.
  18. Step 20
    Toyota 4runner UZN210 4.7 4WD (UZN215) 2004 Brake Discs replacement: free workshop manuals
    Remove the retaining springs of the brake pads.
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