Replacement: wheel bearing – Mazda 3 BK. Tip from AUTODOC experts:
Do not re-use the bearing assembly of your Mazda 3 BK car.
The wheel hub bearing replacement procedure is identical for both wheels on the same axle.
Please note: all work on the car – Mazda 3 BK – should be done with the engine switched off.
Carry out replacement in the following order:
Step 1
Secure the wheels with chocks.
Step 2
Loosen the wheel mounting bolts. Use wheel impact socket #19.
Step 3
Raise the rear of the car and secure on supports.
Step 4
Unscrew the wheel bolts.
AUTODOC recommends:
Warning! To avoid injury, hold the wheel while unscrewing the fastening bolts. Mazda 3 BK
Step 5
Remove the wheel.
Step 6
Detach the brake caliper retaining spring. Use a flat screwdriver.
Step 7
Remove the dust boot caps of the brake caliper guide pins. Use a flat screwdriver.
Step 8
Clean the brake caliper fasteners. Use a wire brush. Use WD-40 spray.
Step 9
Unscrew the brake caliper fastening. Use HEX No.H7. Use a ratchet wrench.
Step 10
Spread the brake pads. Use a crowbar.
Step 11
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. Check the brake caliper bracket, brake caliper guide pins and boots. Clean them. Replace, if necessary.
Step 12
Remove the brake pads.
Step 13
Clean the brake caliper bracket fasteners. Use a wire brush. Use WD-40 spray.
Step 14
Unscrew the caliper bracket fastening. Use a drive socket #14. Use a ratchet wrench.
Step 15
Remove the fastening bolts (2 pieces).
Step 16
Remove the caliper bracket.
Step 17
Remove the brake disc.
Step 18
Clean the fasteners of the wheel hub bearing. Use a wire brush. Use WD-40 spray.
Step 19.1
Unscrew the hub bearing mounting.
Step 19.2
Use Torx T50. Use a ratchet wrench.
Step 20
Remove the fastening bolts.
Step 21
Remove the hub bearing together with the brake disc protection plate. Use a rubber mallet.
Step 22
Detach the ABS sensor connector. Use a flat screwdriver.
Step 23
Remove the brake disc cover.
Step 24
Unscrew the ABS sensor fastener. Use a drive socket #6. Use a ratchet wrench.
Step 25
Disconnect the ABS sensor.
Step 26
Connect the ABS sensor.
Step 27
Screw in the ABS sensor fastener. Use a drive socket #6. Use a torque wrench. Tighten it to 5 nm torque.
Step 28
Clean the fasteners of the wheel hub bearing. Use a wire brush. Use WD-40 spray.
Step 29
Clean the hub bearing mounting seat. Use a wire brush. Use WD-40 spray.
Step 30
Treat the fasteners of the wheel hub bearing. Use a sealant.
Step 31
Install the brake disc cover.
Step 32
Install the hub bearing together with the brake disc protection plate.
Step 33
Install the fastening bolts.
Step 34.1
Tighten the fastener of the wheel hub bearing.
Step 34.2
Use Torx T50. Use a torque wrench. Tighten it to 62 nm torque.
Step 35
Treat the ABS sensor connector. Use electronic spray.
Step 36
Attach the ABS sensor connector.
Step 37
Treat the hub where it contacts the brake disk. Use copper grease.
Step 38
Install the brake disc.
Step 39
Clean the brake caliper bracket from dirt and dust. Use a wire brush. Use a brake cleaner.
AUTODOC recommends:
Replacement: wheel bearing – Mazda 3 BK. After applying the spray, wait a few minutes.
Step 40
Clean the brake caliper bracket fasteners. Use a wire brush. Use WD-40 spray.
Step 41
Treat the brake caliper bracket fasteners. Use a sealant.
Step 42
Install the brake caliper bracket.
Step 43
Install the fastening bolts (2 pieces).
Step 44
Tighten the brake caliper bracket. Use a drive socket #14. Use a torque wrench. Tighten it to 65 Nm torque.
Step 45
Install the brake pads.
Step 46
Install the brake caliper and fix it. Use HEX No.H7. Use a torque wrench. Tighten it to 30 Nm torque.
Step 47
Install the dust boot caps of the brake caliper guide pins.
Step 48
Install the brake caliper retaining spring. Use a flat screwdriver.
Step 49
Treat the surface where the brake disc contacts the wheel rim. Use copper grease.
Step 50
Clean the brake disk surface. Use a brake cleaner.
AUTODOC recommends:
Replacement: wheel bearing – Mazda 3 BK. After applying the spray, wait a few minutes.
Step 51
Install the wheel.
AUTODOC recommends:
Warning! To avoid injury, hold the wheel while screwing in the fastening bolts on the car. Mazda 3 BK
Step 52
Screw in the wheel bolts. Use wheel impact socket #19.
Step 53
Lower the car and working in a cross order, tighten the wheel bolts. Use wheel impact socket #19. Use a torque wrench. Tighten it to 118 nm torque.
Step 54
Remove the jacks and chocks.
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