Buy 2011 Audi A6 Suspension Control Arm (Rear, Upper). A6, S6; w/Air Ride Suspension. W/air suspension - OEM Audi Part # 4F0505323L (4F0-505-323-L, 4F0505323H)

Arm. Control.
Air Suspension. Suspension component that connects and provides pivotal movement of the Steering Knuckle to the vehicle. Cntl. CONTOUR. Suspension. Track Rod.

Suspension Control Arm

Fits A6, S6

A6, S6; w/Air Ride Suspension. W/air suspension.
Suspension Control Arm - Repair or Replace
Control arms often don’t fail on their own, although their associated bushings can break or wear causing a clunk noise when your 2011 Audi A6 goes over bumps or changes speed rapidly—whether braking or under hard acceleration. Control arms can also sometimes become bent, causing your vehicle to pull to the left or right.