Rear lower control arm (aka rollover strut) with inner bushing for F25 X3, F97 X3M, F26 X4, and F98 X4M. This is the second control arm at the bottom of the rear suspension (behind the trailing arm).
A worn control arm bushing will cause the alignment to change beyond the required spec and affect tire wear. A really bad bushing will even affect toe alignment in a straight line, not just in the corners. Drivers will often note that the rear of the car does not feel planted or complain of wandering or loose feeling as the car no longer tracks straight down the road.
This part is listed by BMW as BMW part number 33326795812 (33-32-6-795-812) and is described as Lemfoerder OEM Rollover Strut with Inner Bushing.
BMW Fitments:
X3 Series
F25 X3 (2011-2017) > X3 sDrive28i
F25 X3 (2011-2017) > X3 xDrive28d Diesel
F25 X3 (2011-2017) > X3 xDrive28i
F25 X3 (2011-2017) > X3 xDrive35i
X3 Series
F97 X3M (2020-2024) > X3M
X4 Series
F26 X4 (2015-2018) > X4 28i xDrive
F26 X4 (2015-2018) > X4 35i xDrive
F26 X4 (2015-2018) > X4 M40i xDrive
X4 Series
F98 X4M (2020-2025) > X4M