SI number

WARNING: This page does not describe the selected car, but rather 21 other vehicles, including the 2017 BMW 550i GT xDrive, 2017 BMW 535i GT xDrive, 2017 BMW 535i GT, 2016 BMW 550i GT xDrive, and 2016 BMW 535i GT xDrive. However, it is still accessible from the selected car via links, so may be relevant.

01 01 89 (989)

Consisting of:

4 = 0492392 Bush
NOTE: (Pressure bushing) For pressing the ball joint into the wishbone
3 = 0492391 Shaped element
NOTE: For positioning the wishbone when pressing in the ball joint
2 = 0492390 Bush
NOTE: (Pressure bushing) For pressing the ball joint out of the wishbone
1 = 0492389 Shaped element
NOTE: For positioning when pressing out the ball joint

Fig 1: Identifying Device (33-4120)
Courtesy of BMW OF NORTH AMERICA, INC.