Control Arm
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2018 Audi S6, 2018 Audi A6 Quattro, 2018 Audi A6, 2017 Audi S6, and 2017 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
-- With unloaded wheels, check relative movement of wheel bearing housing to control arm.
-- By raising and lowers the wheels several times by hand -arrow- the relative movement between wheel bearing housing and control arm can be observed.
-- If relative movement when lifting or lowering gives evidence of play that can be felt or seen, control arm must be replaced.