Audi A3 Quattro brake pulsation and vibration issue with wheel hopping after brake and caliper replacement on Audi A3 Quattro

Some Audi A3 Quattro owners report experiencing brake pulsation and vibration issues, particularly wheel hopping, after brake and caliper replacement. A common cause of these problems is warped or unevenly worn brake rotors, which can lead to inconsistencies in brake pad contact and subsequent pulsations. Additionally, some owners note that ABS activation can create a pulsating sensation and noise, which is a normal occurrence rather than a sign of brake pulsation. When pulsation is detected, a brake rotor replacement is often recommended. Owners also face the decision of whether to resurface or replace the rotors, depending on factors such as rotor thickness and manufacturer guidelines. Poor brake installation practices and improper tire rotation are frequently cited as contributors to brake judder, rather than actual rotor warping. In severe cases, brake judder may cause a pulsating brake pedal, steering wheel wobble, and even shaking of the entire vehicle during braking. Furthermore, some owners have found that issues like bad wheel bearings or suspension components can also lead to vibrations and wheel hopping after brake work. Accurate diagnosis of the underlying cause is crucial for effectively resolving these brake-related concerns.