Rebouch1,

Looks like my vacuum pump is leaking. Stealer wants $950 to replace. I can buy a vacuum pump for under $400. I am a newbie at car repairs but willing to try to save $540.

This looks easy enough except for lining up the slot

BMW TIS - 11 66 000 Removing and installing/replacing vacuum pump (N62/N62TU)

How do you crank the engine manually to align the slot vertically? Is the main crank bolt easily accessible? What size socket would you use for this?

Thanks for your help in advance.