[m36]

BMW Germany has a TSB saying that when a M240i G42 is noisy in the rear on bad roads to replace the shock absorbers, and if that doesn't help to open a TSARA case. This was formerly known as a PuMA case.

A lot of people found out replacing the shock absorbers does not fix the issue. BMW then tells the dealer to put in a different shock absorber mount from a 3 series: 33 50 6 889 267
This seems to fix the noise, a lot of people in a German forum wrote that this fixed the noise completely. Some had both shock absorbers and mounts replaced, others only the mounts and it seems to work.