A8 Quattro; Upper; Left. S8; Upper; Left. An Arm that runs from the frame perpendicularly to the knuckle. Exc.Air Suspension. Incl.Bushings. Part has related component that cannot be reused/reinstalled; nut and bolt. Part has related components that cannot be reused/reinstalled; adjust bolt, nut and bolt. Part has related components that cannot be reused/reinstalled; bolt, screw and nut. Part has related components that cannot be reused/reinstalled; screw, bolt and nut. Suspension component that connects and provides pivotal movement of the Steering Knuckle to the vehicle. bar. Cntl. Lateral. Link Assembly. Suspension Control. Suspension support.