Opening laser weld seams

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2015 BMW 760Li, 2014 BMW 760Li, 2013 BMW 760Li, 2012 BMW 760Li, and 2011 BMW 760Li. However, it is still accessible from the selected car via links, so may be relevant.

Laser weld seams are used in the roof outer skin area.

Procedure:
Roughly cut roof outer skin in the roof channel to improve accessibility.

Place angle grinder with grinding disc on laser weld seam and grind through top panel. Be careful not to cut through and damage panel underneath.

Remove sheet metal flange.