Why does the Audi A6 shake when braking?

[StMiranda]

Audi A6 shaking during braking may be caused by uneven wear of the brake discs. The following are the reasons for brake shaking: Specific causes of brake shaking: For manual transmission vehicles, slight vibration of the brake pedal and clutch pedal is normal when the vehicle is in a low gear with high torque. For automatic transmission vehicles, pedal vibration is also normal when stopping at a red light with the gear in D; shifting to N or P gear will significantly reduce the vibration. Uneven wear of tire treads on both sides or different tire pressures can also cause brake pedal vibration. Deformation of the brake discs can lead to shaking, especially during emergency braking, in which case the brake discs are generally recommended to be replaced. Solutions for brake shaking: Replace shock absorbers, replace spark plugs (as their ignition efficiency may have degraded), tighten loose screws, replace rubber mounts, clean carbon deposits in the engine cylinders, replace spark plugs, and address spark plug carbon buildup or clogging.