this is related to the hydraulic unit on the vehicle.
its mentioned on this other post
https://g80.bimmerpost.com/forums/sh....php?t=1801752
affected models include
MODEL
F92 M8 Coupe
F93 M8 Gran Coupe
F95 X5 M
F96 X6 M
G05 X5
G06 X6
G07 X7
G11 7 Series
G12 7 Series
G14 8 Series Cabriolet
G15 8 Series Coupe
G16 8 Series Gran Coupe
G80 M3
G82 M4