About this part
What it does. Wagner Brake Rear Disc Brake Rotor Wagner Brake 621-BD180768E 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 2020–2025 BMW X2, 2019–2025 BMW X1, 2020–2024 BMW 228i Xdrive Gran Coupe, 2021–2024 BMW 228i Gran Coupe. Engine, sub-model and trim can narrow fitment further, so check those attributes on the listing before ordering.