Control Arm

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-- With unloaded wheels, check relative movement of wheel bearing housing to control arm.

Fig 1: Identifying Bearing Housing And Control Arm

Courtesy of AUDI OF AMERICA, LLC

-- 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.

Driveshaft Boots:

-- Check all around interior and exterior driveshaft boot for damage and correct seating. Turn wheel, if necessary.

By turning the front wheels, tears can be found in their early stages.
Driveshaft boot damage can usually be recognized by leaking lubrication.