Oil change BMW 6-Series 2004 - 2009

The sump plug is accessed underneath the car

The sump plug and the oil filter cartridge are in the same location

Here's the sump plug

Don't forget to place a suitably sized receiving tray beneath

Using an 8mm Allen key socket, carefully remove the sump plug and fully drain the oil. When the sump has emptied, wipe clean the sump plug area with a paper towel and refit the sump plug and washer. Do not overtighten