Checking play

WARNING: This page is about a different car, the 2011 BMW 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. However, it is still accessible from the selected car via links, so may be relevant.

For hydraulically assisted steering systems, the engine must be running
For electrically assisted steering systems, the ignition must be switched on
Steering wheel: Move steering wheel back and forth and check for play
Tie rod joint: There must be no play between tie rod joint (1) and steering arm (2)

Fig 1: Identifying Tie Rod Joint And Steering Arm
Courtesy of BMW OF NORTH AMERICA, INC.