Originally Posted by vintagerider
don't re-use lower shock bolt - replace w/oem only
- Upgrading from grey to brown seal: don't even think of not replacing the rear input shaft seal
OE BMW Manual makes no mention of replacing the lower shock bolt, neither does the Max parts fiche.
I see no purpose unless it was damaged removing it.
If it has the Brown seal there is no need to change if the failure is recent. I have never had an issue with not changing it. Unless you have the proper seal driver (easily made but required) inexperienced hands can do more damage than good.