To avoid injury, hold up the wheel when unscrewing the bolts.
Step 7
Remove the wheel.
Step 8
Clean the brake pad guide pins. Use a wire brush. Use all-purpose cleaning spray.
Step 9
Remove the brake pad guide pins. Use a pin punch. Use a hammer.
Step 10
Remove the retaining spring of the brake pads.
Step 11
Spread the brake pads. Use a crowbar (2 pieces).
Step 12
Remove the brake pads.
Step 13
Clean the brake caliper fasteners. Use a wire brush. Use WD-40 spray.
Step 14
Unscrew the brake caliper fasteners. Use a combination spanner #17.
Step 15
Remove the fastening bolts.
Step 16
Remove the brake caliper.
Replacement: handbrake shoe – Mercedes W124. Tip:
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.
Step 17
Clean the brake disc fastener. Use a wire brush. Use WD-40 spray.
Step 18
Unscrew the brake disc fasteners. Use HEX No.H5. Use a ratchet wrench.
Step 19
Remove the fastening bolt.
Step 20
Release the parking brake adjuster. Use a flat screwdriver.
Step 21
Remove the brake disc.
Step 22
Remove the lower brake shoe return spring. Use a flat screwdriver.
Step 23
Remove the hold-down springs of the parking brake shoes. Use long nose pliers.
Step 24
Remove the parking brake shoes.
Step 25
Clean the mounting seats of the parking brake shoes. Use a wire brush. Use all-purpose cleaning spray.
Step 26
Remove the parking brake adjuster.
Step 27
Clean the parking brake adjuster. Use a wire brush. Use all-purpose cleaning spray.
Step 28
Remove the upper return spring.
Step 29
Install the upper return spring.
Step 30
Install the parking brake adjuster.
Step 31
Install new parking brake shoes.
Step 32
Install the hold-down springs of the parking brake shoes. Use long nose pliers.
Step 33
Install the lower return spring. Use a flat screwdriver.
Step 34
Clean the wheel hub. Use a wire brush.
Step 35
Treat the contacting surface. Use ceramic grease.
Step 36
Install the brake disc.
Step 37
Install the fastening bolt.
Step 38
Tighten the brake disc fasteners. Use HEX No.H5. Use a torque wrench. Tighten it to 10 Nm torque.
Step 39
Set the parking brake adjuster in the correct position. Use a flat screwdriver.
Step 40
Install the brake caliper and fasten it.
Step 41
Install the fastening bolts.
Step 42
Tighten the brake caliper fasteners. Use a drive socket #17. Use a torque wrench. Tighten it to 65 Nm torque.
Step 43
Install the brake pads.
Step 44
Install the retaining spring of the brake pads.
Step 45
Install the brake pad guide pins. Use a pin punch. Use a hammer.
Step 46
Clean the brake disk surface. Use a brake cleaner.
Step 47
Treat the surface where the brake disc contacts the wheel rim. Use ceramic grease.
Step 48
Install the wheel.
AUTODOC recommends:
Important! Hold the wheel while screwing in the fastening bolts. Mercedes W124
Step 49
Screw in the wheel bolts. Use wheel impact socket #17. Use a ratchet wrench.
Step 50
Lower the car and working in a cross order, tighten the wheel bolts. Use wheel impact socket #17. Use a torque wrench. Tighten it to 110 Nm torque.
Step 51
Remove the jacks and chocks.
AUTODOC recommends:
Mercedes W124 – Press the brake pedal several times with the engine shut down until you feel the resistance built up.Check the brake fluid level in the expansion tank and top up if necessary.
Step 52
Tighten the brake fluid reservoir cap.
Step 53
Close the bonnet.
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