The DFC brake master cylinder for 1990–1995 Audi S4 applications is a replacement unit that re-establishes hydraulic pressure in the braking system. It’s intended to remedy leaks, worn internal components, or a soft pedal, helping restore firm pedal feel and dependable stopping power. This part is intended for use during brake system repairs and master cylinder replacement on the specified S4 years.
DFC 90-95 Audi S4 Brake Master Cylinder