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How to change front brake discs on VAUXHALL Astra Mk IV (G) Saloon (T98) – replacement guide
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Recommended replacement interval for the part category Brake disc : 50000 km
Important!
This replacement procedure can be used for:
VAUXHALL Astra Mk IV (G) Saloon (T98) 1.4 16V, VAUXHALL Astra Mk IV (G) Saloon (T98) 1.8 16V, VAUXHALL Astra Mk IV (G) Saloon (T98) 2.0 16V, VAUXHALL Astra Mk IV (G) Saloon (T98) 2.0 DI, VAUXHALL Astra Mk IV (G) Saloon (T98) 2.0 DTI 16V, VAUXHALL Astra Mk IV (G) Saloon (T98) 1.8 16V, VAUXHALL Astra Mk IV (G) Saloon (T98) 1.8 16V Dualfuel … View more
The steps may slightly vary depending on the car design.
VAUXHALL Astra Mk IV (G) Saloon (T98) 1.4 16V, VAUXHALL Astra Mk IV (G) Saloon (T98) 1.8 16V, VAUXHALL Astra Mk IV (G) Saloon (T98) 2.0 16V, VAUXHALL Astra Mk IV (G) Saloon (T98) 2.0 DI, VAUXHALL Astra Mk IV (G) Saloon (T98) 2.0 DTI 16V, VAUXHALL Astra Mk IV (G) Saloon (T98) 1.8 16V, VAUXHALL Astra Mk IV (G) Saloon (T98) 1.8 16V Dualfuel … 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 – Brake Discs for Astra Mk IV (G) Saloon (T98) and other VAUXHALL models
Brake disc
Alternative products

Wire brush
Nylon cleaning brush
WD-40 spray
Brake cleaner
Copper grease
Drive socket # 18
HEX bit No.H5.
HEX bit No.H7.
Wheel impact socket #17
Ratchet wrench
Torque wrench
Brake caliper wind back tool
Flat Screwdriver
Crow bar
Pliers
Wheel chock
Replacement: brake discs – VAUXHALL ASTRA Mk IV (G) Saloon. AUTODOC recommends:
- Replace the brake disks on the car VAUXHALL ASTRA Mk IV (G) Saloon 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.
- All work should be done with the engine stopped.
Replacement: brake discs – VAUXHALL ASTRA Mk IV (G) Saloon. Use the following procedure:
- Step 1Open the bonnet. Unscrew the brake fluid reservoir cap.Step 2Secure the wheels with chocks.
- Step 3Loosen the wheel mounting bolts. Use wheel impact socket #17.
- Step 4Raise the front of the car and secure on supports.Step 5Unscrew the wheel bolts.AUTODOC recommends:Important! Hold the wheel while unscrewing the fastening bolts. VAUXHALL ASTRA Mk IV (G) Saloon
- Step 6Remove the wheel.
- Step 7Detach the brake caliper retaining spring. Use a flat screwdriver.
- Step 8Remove the dust boot caps of the brake caliper guide pins. Use a flat screwdriver.
- Step 9Clean the brake caliper fasteners. Use a wire brush. Use WD-40 spray.Step 10Unscrew the brake caliper fastening. Use HEX No.H7. Use a ratchet wrench.
- Step 11Spread the brake pads. Use a crowbar.
- Step 12Remove the brake caliper.Replacement: brake discs – VAUXHALL ASTRA Mk IV (G) Saloon. Professionals recommend: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 13Remove the brake pads.
- Step 14Clean the brake caliper bracket fasteners. Use a wire brush. Use WD-40 spray.
- Step 15Unscrew the caliper bracket fastening. Use a drive socket #18. Use a ratchet wrench.
- Step 16Remove the fastening bolts (2 pieces).Step 17Remove the caliper bracket.
- Step 18Clean the brake disc fastener. Use a wire brush. Use WD-40 spray.
- Step 19Unscrew the brake disc fastening. Use HEX No.H5. Use a ratchet wrench.
- Step 20Remove the brake disc.
- Step 21Clean the hub. Use a wire brush. Treat the contacting surface. Use copper grease.
- Step 22Install the brake disc.
- Step 23Tighten the brake disc fastening. Use HEX No.H5. Use a torque wrench. Tighten it to 7 Nm torque.
- Step 24Clean the brake caliper bracket from dirt and dust. Use a wire brush. Use a brake cleaner.AUTODOC recommends:Replacement: brake discs – VAUXHALL ASTRA Mk IV (G) Saloon. After applying the spray, wait a few minutes.
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