Recommended replacement interval for the part category Brake disc : 50000 km

Important!

This replacement procedure can be used for:
OPEL Astra H Saloon (A04) 1.8 (L69), OPEL Astra H Saloon (A04) 1.3 CDTi (L69), OPEL Astra H Saloon (A04) 1.7 CDTi (L69), OPEL Astra H Saloon (A04) 1.7 CDTi (L69) … View more

The steps may slightly vary depending on the car design.

How to change front brake discs on OPEL ASTRA H Saloon [TUTORIAL AUTODOC]

Alternative products

Brake disc

Replacement: brake discs – Opel Astra H saloon. Tools you'll need:

                      Wire brush
                    
                      Nylon cleaning brush
                    
                      WD-40 spray
                    
                      Brake cleaner 
                    
                      Copper grease 
                    
                      Torque wrench
                    
                      Drive socket # 18
                    
                      HEX bit No.H7
                    
                      Torx bit T30
                    
                      Wheel impact socket #17
                    
                      Ratchet wrench
                    
                      Tap wrench
                    
                      Rubber mallet
                    
                      Brake caliper wind back tool
                    
                      Crow bar
                    
                      Wheel chock

Buy tools

AUTODOC recommends:

Replace the brake disks on the car Opel Astra H 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.
Please note: all work on the car – Opel Astra H saloon – should be done with the engine switched off.

Carry out replacement in the following order:

Step 1

Open the hood. Unscrew the brake fluid reservoir cap.
Step 2

Secure the wheels with chocks.

Step 3

Loosen the wheel mounting bolts. Use wheel impact socket #17.
Step 4

Raise the front of the car and secure on supports.
Step 5

Unscrew the wheel bolts.

AUTODOC recommends:
Warning! To avoid injury, hold the wheel while unscrewing the fastening bolts. Opel Astra H saloon
Step 6

Remove the wheel.
Step 7

Remove the dust boot caps of the brake caliper guide pins. Use a crowbar.
Step 8

Unscrew the brake caliper fastening. Use HEX No.H7. Use a ratchet wrench.
Step 9

Spread the brake pads. Use a crowbar.
Step 10

Detach the brake caliper retaining spring. Use a crowbar.
Step 11

Remove the brake caliper.

Replacement: brake discs – Opel Astra H saloon. AUTODOC experts 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 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 #18. Use a tap wrench.
Step 15

Remove the caliper bracket.
Step 16

Clean the brake disc fastener. Use a wire brush. Use WD-40 spray.
Step 17

Unscrew the brake disc fastening. Use Torx T30. Use a ratchet wrench.
Step 18

Remove the brake disc.

Replacement: brake discs – Opel Astra H saloon. Tip from AUTODOC:
If necessary, use a rubber mallet.
Step 19

Clean the hub. Use a wire brush. Treat the contacting surface. Use copper grease.
Step 20

Install the brake disc.
Step 21

Tighten the brake disc fastening. Use Torx T30. Use a torque wrench. Tighten it to 7 nm torque.
Step 22

Clean the brake caliper bracket from dirt and dust. Use a wire brush. Use a brake cleaner.

AUTODOC recommends:
Replacement: brake discs – Opel Astra H saloon. After applying the spray, wait a few minutes.
Step 23

Install the brake caliper bracket.
Step 24

Tighten the brake caliper bracket. Use a drive socket #18. Use a torque wrench. Tighten it to 100 nm torque.
Step 25

Treat the brake caliper piston. Use a nylon cleaning brush. Use a brake cleaner.

Replacement: brake discs – Opel Astra H saloon. Professionals recommend:
After applying the spray, wait a few minutes.
Step 26

Press in the brake caliper piston. Use brake caliper wind back tool.
Step 27

Install the brake pads.
Step 28

Install the brake caliper and fix it. Use HEX No.H7. Use a torque wrench. Tighten it to 28 Nm torque.
Step 29

Install the dust boot caps of the brake caliper guide pins.
Step 30

Install the brake caliper retaining spring. Use a crowbar.
Step 31

Treat the surface where the brake disc contacts the wheel rim. Use copper grease.
Step 32

Clean the brake disk surface. Use a brake cleaner.

AUTODOC recommends:
Replacement: brake discs – Opel Astra H saloon. After applying the spray, wait a few minutes.
Step 33

Install the wheel.

AUTODOC recommends:
Warning! To avoid injury, hold the wheel while screwing in the fastening bolts on the car. Opel Astra H saloon
Step 34

Screw in the wheel bolts. Use wheel impact socket #17.
Step 35

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 36

Remove the jacks and chocks.

Replacement: brake discs – Opel Astra H saloon. Tip:
Without starting the engine, press the brake pedal several times until you feel significant resistance.Check the brake fluid level in the expansion tank and refill if necessary.
Step 37

Tighten the brake fluid reservoir cap. Close the hood.

Was this manual helpful?

Please rate this manual on a scale from 1 to 5. If you have any questions, feel free to ask us.

Need New Tyres?

Find out which tyre and wheel sizes are compatible with the OPEL Astra H Saloon (A04) model

Opel Astra H Saloon tyre size

How to change rear brake pads on Opel Astra H saloon – replacement guide

Free download PDF 1.67 MB
How to change front brake caliper on Opel Astra H saloon – replacement guide

Free download PDF 2.34 MB
How to change rear brake discs on Opel Astra H saloon – replacement guide

Free download PDF 2.22 MB
How to change front brake pads on Opel Astra H saloon – replacement guide

Free download PDF 1.66 MB
How to change front wheel bearing on Opel Astra H saloon – replacement guide

Free download PDF 2.95 MB
How to change rear wheel bearing on Opel Astra H saloon – replacement guide

Free download PDF 2.77 MB

How to change front brake discs on OPEL Astra H Hatchback (A04) – replacement guide

Free download PDF 2.74 MB
How to change rear brake discs on OPEL Astra H Hatchback (A04) – replacement guide

Free download PDF 2.4 MB
How to change front brake discs on Opel Astra G F48 – replacement guide

Free download PDF 2.74 MB
How to change rear brake discs on OPEL Astra G CC (T98) – replacement guide

Free download PDF 2.4 MB
How to change rear brake discs on OPEL Astra G Saloon (T98) – replacement guide

Free download PDF 2.4 MB
How to change front brake discs on OPEL Astra G Saloon (T98) – replacement guide

Free download PDF 2.72 MB

Unlock your car maintenance assistant!

Track expenses, manage logs, schedule replacements, and more.

Petrol or diesel: The engine showdown! | AUTODOC

5K views

Published on: 04/05/2021
What to do if your car window doesn’t open

4K views

Published on: 21/05/2026
Prevent Engine Damage: How to Identify Rocker Cover Gasket Issues and Proper Replacement | AUTODOC

7K views

Published on: 03/12/2020
Top 10 most useful car life hacks

11K views

Published on: 27/11/2025