Exclusing everybody < 60000 miles, 77% didn't have any issue.
23% failure is HIGH and obvious recommendation would be a preventive change if you intend to keep the car.
Except vbefore doing so, we would definitely need separate the following.
Again, I don't think that the 2nd category would necessarily need this, but 1st and 3rd - yes.
2007 E90 AW 323i Step | Lowered 1.25"/1" | BMW Performance Exhaust | PBX | Debadged | Scangauge II | Style 162 18" & 161 17" wheels & rear 15mm spacers