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How to change rear brake discs on AUDI TT Roadster (8N9) – 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:
AUDI TT Roadster (8N9) 1.8 T quattro, AUDI TT Roadster (8N9) 1.8 T, AUDI TT Roadster (8N9) 1.8 T, AUDI TT Roadster (8N9) 1.8 T, AUDI TT Roadster (8N9) 1.8 T … View more
The steps may slightly vary depending on the car design.
AUDI TT Roadster (8N9) 1.8 T quattro, AUDI TT Roadster (8N9) 1.8 T, AUDI TT Roadster (8N9) 1.8 T, AUDI TT Roadster (8N9) 1.8 T, AUDI TT Roadster (8N9) 1.8 T … 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 TT Roadster (8N9) and other AUDI models
Brake disc
Alternative products

Wire brush
WD-40 spray
Brake cleaner
Copper grease
Combination spanner #13
Combination spanner #15
Drive socket # 13
Torx bit T30
Torque wrench
Wheel impact socket #17
Rubber mallet
Crow bar
Wheel chock
Replacement: brake discs – AUDI TT Roadster (8N9). Professionals recommend:
- Replace the brake disks on the car AUDI TT Roadster (8N9) 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 – AUDI TT Roadster (8N9). 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 rear of the car and secure on supports.Step 5Unscrew the wheel bolts.Replacement: brake discs – AUDI TT Roadster (8N9). AUTODOC experts recommend:To avoid injury, hold up the wheel when unscrewing the bolts.
- Step 6Remove the wheel.
- Step 7Disconnect the ABS sensor electric socket. Disconnect the brake pad wear sensor plug. Remove the ABS sensor connector. Remove the connector of the brake pad wear sensor.Please note!Some cars are not equipped with the brake pad wear sensor.Step 8Spread the brake pads. Use a crowbar.Step 9Clean the brake caliper fasteners. Use a wire brush. Use WD-40 spray.Step 10Unscrew the brake caliper fastening. Use a combination spanner #13. Use a combination spanner #15.
- Step 11Remove the brake caliper.AUTODOC recommends: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 12Press in the brake caliper piston. Use brake caliper wind back tool.
- Step 13Unscrew the brake disc mounting bolts and remove it. Use Torx T30.Replacement: brake discs – AUDI TT Roadster (8N9). Tip:If necessary, use a rubber mallet.
- Step 14Clean the hub. Use a wire brush. Use a brake cleaner.AUTODOC recommends:Replacement: brake discs – AUDI TT Roadster (8N9). After applying the spray, wait a few minutes.
- Step 15Treat the contacting surface. Use copper grease.
- Step 16Remove anti-corrosion grease from the new brake disk. Use a brake cleaner.Replacement: brake discs – AUDI TT Roadster (8N9). Tip from AUTODOC experts:After applying the spray, wait a few minutes.Step 17Install the brake disc.
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