About this part
What it does. Zimmermann COAT Z Zimmermann 757-100.3358.20 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 2020–2021 Audi Q7, 2019 Porsche Macan. Engine, sub-model and trim can narrow fitment further, so check those attributes on the listing before ordering.