Checking play

WARNING: This page is about a different car, the 2010 BMW 650i, 2009 BMW 650i, and 2008 BMW 650i. 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 on
Steering wheel: Move steering wheel back and forth and check for play
Tie rod joint: There must be no play between the track-rod arm (2) and track rod joint (1)

Fig 1: Identifying Track Rod Arm And Track Rod Joint

Courtesy of BMW OF NORTH AMERICA, INC.