About this part
What it does. Quality Built Quality-Built Black Series Coated Rotor Quality-Built 176-BR78004G is the disc the brake pads clamp onto to convert motion into heat and stop the wheel.
Symptoms that point to this part
- Pulsing brake pedal or steering wheel shudder
- Deep scoring or a lip on the disc face
- Blue heat spotting
Service note. Rotors are replaced in pairs per axle, together with fresh pads.
Fitment. Catalogued as fitting 2021–2025 Audi A5 Sportback, 2021–2025 Audi A4 Quattro, 2019–2020 Audi A4, 2019 Audi A5 Quattro. Engine, sub-model and trim can narrow fitment further, so check those attributes on the listing before ordering.