Buy 2010 Audi S5 Power Brake Booster. "GIRLING-TRW". A4, S4; Girling-TRW. A5, S5. TRW. Brake Power - OEM Audi Part # 8K0612107B (8K0-612-107-B, 8K0612107)

BrakesERVO. Power Brake Booster.
Power Brake Booster. Vendor:GIRLING.

Power Brake Booster

Fits A4, A5, S4, S5

"GIRLING-TRW". A4, S4; Girling-TRW. A5, S5. TRW.
Brake Power Booster Unit - Repair or Replace
If you have a brake pedal that is suddenly stiff or you hear a whistling noise when you step on your brakes—especially when you're stopped—the culprit may be a failed brake booster. Our technicians can easily diagnose a possible brake booster failure in your 2010 Audi S5.