Just completed an oil change on BMW 540 w/ B58 engine. A couple of resources I wanted to share:
https://www.newtis.info/tisv2/a/en/g...nce/1VnYfxTpte
Drain plug is 16mm or 17mm. Tech doc says 16mm. Watched a B58 oil change video says 17mm. I used 17 and worked fine - but forgot to try 16mm. There is a cover on the drain plug that is not pictured in above link. You simply rotate to remove the cover, giving you access to drain plug. Oil filter housing is 32mm - and in a crappy spot on driver side of engine near fire wall. Used 32mm w/ universal joint and extension to remove.
Used center of front axle support to lift with my low profile floor jack and set front wheels down on rhino ramps. Picture of front axle support in link below.
https://www.newtis.info/tisv2/a/en/g...way/1VnYcMLZy0
Filled with 5 quarts and then drove around block and checked oil level. Told me I was a quart low. Added 1 quart and all good. System holds 6.5 but I started with 5 to avoid overfilling in the event I did not get a full drain.
Interesting thread on BMW oil specs
https://www.bimmerworld.com/BMW-Engine-Oil/