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How to change wheel cylinder on OPEL Astra G Classic Hatchback (T98) – replacement guide
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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.
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
Alternative products

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
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 3Raise 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 10Unscrew 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 14Clean 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.
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