Remove The Door Sill At The Front Door

Further information is available .

Mark and make the separating cuts (1) and (2) as shown. Thereby disconnect only the outer panel.
Open welded connections in area (3).

NOTE: TECHNICAL INFORMATION
For additional information see: OPENING BONDED CONNECTIONS - (530i 2017-2022, 530i xDrive 2017-2022, 530e PHEV 2018-2022, 530e xDrive PHEV 2018-2022, 540i 2017-2022, 540i xDrive 2017-2022, M550i xDrive 2018-2022) .

Release the spot-welded adhesive joints in area (4).
Remove the section of the door sill.

Courtesy of BMW OF NORTH AMERICA, INC.