Recommended replacement interval for the part category Wheel Brake Cylinder : 60000 km

Important!

This replacement procedure can be used for:
OPEL Astra G Classic Hatchback (T98) 1.7 CDTI (F08, F48) … 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

All the parts you need to replace – Wheel Cylinder for Astra G Classic Hatchback (T98) and other OPEL models

Wheel Brake Cylinder

Wheel Brake Cylinder for Astra G Classic Hatchback (T98) Diesel (80 hp)

Replacement: wheel cylinder – OPEL ASTRA G CLASSIC (T98). Tools you'll need:

                        Wire brush
                      
                        WD-40 spray
                      
                        Copper grease 
                      
                        Drive socket # 10 
                      
                        Combination spanner #9
                      
                        Combination spanner #24
                      
                        Flare Nut Wrench № 10
                      
                        Wheel impact socket #17
                      
                        Ratchet wrench
                      
                        Torque wrench
                      
                        Round-nose pliers
                      
                        Rubber mallet
                      
                        Flat Screwdriver
                      
                        Crow bar
                      
                        Wheel chock

Buy tools

Replacement: wheel cylinder – OPEL ASTRA G CLASSIC (T98). AUTODOC experts recommend:

Replace the wheel brake cylinders of the rear drum brakes in pairs.
The replacement procedure is identical for the right and left wheel brake cylinders of the rear drum brakes.
All work should be done with the engine stopped.

Replacement: wheel cylinder – OPEL ASTRA G CLASSIC (T98). Recommended sequence of steps:

Step 1

Secure the wheels with chocks.
Step 2

Loosen the wheel mounting bolts. Use wheel impact socket #17.
Step 3

Raise the rear of the car and secure on supports.

Step 4

Unscrew the wheel bolts.

Replacement: wheel cylinder – OPEL ASTRA G CLASSIC (T98). Tip from AUTODOC:
To avoid injury, hold up the wheel when unscrewing the bolts.
Step 5

Remove the wheel.
Step 6

Remove the hub bearing protection cap. Use a flat screwdriver.
Step 7

Remove the cotter pin securing the hub nut. Use round-nose pliers.
Step 8

Unscrew the wheel hub axle nut. Use a combination spanner #24.
Step 9

Remove the brake drum.

Replacement: wheel cylinder – OPEL ASTRA G CLASSIC (T98). Professionals recommend:
Examine the brake drum. Replace it if necessary.
Step 10

Unscrew the fastener connecting the brake pipe to the wheel cylinder. Use a flare nut spanner #10.

Step 11

Detach the brake pipe.

Replacement: wheel cylinder – OPEL ASTRA G CLASSIC (T98). AUTODOC recommends:
Immediately plug the brake line open end to prevent fluid leakage and ingress of dirt into the hydraulic system.
Step 12

Unscrew the wheel cylinder fastener. Use a drive socket #10. Use a ratchet wrench.
Step 13

Remove the brake cylinder from the backplate. Use a crowbar.
Step 14

Clean the brake drum. Use a wire brush. Use WD-40 spray.

Step 15

Clean the brake pipe attachment spot and the brake drum fastening bolts on :maker :model.
Step 16

Install a new brake cylinder.
Step 17

Tighten the wheel cylinder fastener. Use a drive socket #10. Use a torque wrench. Tighten it to 10 nm torque.
Step 18

Attach the brake pipe. Use a flare nut spanner #10.
Step 19

Bleed the brake cylinder system. Use a combination spanner #9.

Replacement: wheel cylinder – OPEL ASTRA G CLASSIC (T98). Tip:
Make sure to set the protection cap on the bleeder valve.
Step 20

Tighten the fastener connecting the brake pipe to the wheel cylinder. Use a flare nut spanner #10. Use a torque wrench. Tighten it to 15 nm torque.

Step 21

Clean the hub. Use a wire brush. Treat the contacting surface. Use copper grease.

Step 22

Install a brake drum.
Step 23

Screw in the wheel hub fastener. Use a combination spanner #24. Use a ratchet wrench.
Step 24

Install the cotter pin of the hub bearing fastening nut. Use round-nose pliers.
Step 25

Install the hub bearing protection cap. Use a rubber mallet.
Step 26

Clean the wheel rim mounting seat. Use a wire brush. Treat the surface where the wheel rim contacts the brake drum. Use copper grease.
Step 27

Install the wheel.

Replacement: wheel cylinder – OPEL ASTRA G CLASSIC (T98). AUTODOC experts recommend:
To avoid injury, hold up the wheel when screwing in the fastening bolts.
Step 28

Screw in the wheel bolts. Use wheel impact socket #17.
Step 29

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 30

Remove the jacks and chocks.

AUTODOC recommends:
Bleed the brake system after replacing the cylinder on OPEL ASTRA G CLASSIC (T98).Important! Replacement: wheel cylinder – OPEL ASTRA G CLASSIC (T98). Check the brake fluid level in the reservoir and top up if necessary.Perform test braking when driving at an average speed, the OPEL ASTRA G CLASSIC (T98) should not pull to one side.
Step 31

Adjust the gap between the brake shoes and the drum on :maker :model, pressing the brake pedal 10-15 times.

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