General Repair Information

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2017 Audi S3, 2017 Audi A3 Quattro, 2017 Audi A3, 2016 Audi S3, and 2016 Audi A3 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

Clean the bolts and nuts before reusing.
Always replace damaged nuts and bolts.
Always replace self-locking nuts and bolts.

Hairline cracks on the brake rotor friction surface are often noticed during brake repairs. Hairline cracks up to 10 mm long are not a technical flaw and do not justify a brake rotor replacement.
Brake rotors and brake pads that have a worn through friction surface should be replaced.