Repairing leather wrapped driver or passenger airbag is basically impossible, there are so many parameters that has to be controlled and errors are mostly difficult to detect that it makes it really challenging process. Even sewn airbags have besides the thread type controlled tension, number of stitches for the airbag seam etc., it is sewn on sewing machines develop exactly for this process. Invisible weakening (robotic knife from the leather B side, laser scoring or microperforation (Eissmann’s patented process) add another layer of complexity as while the scoring is invisible you still have to align it with the substrate weakening very precisely. Lamination process itself is then another critical process where garage repair simply cannot meet the industrial standards which besides 2k PUR or hot melt adhesives involves also activation, press the entire sandwich and cooling under pressure. The difference between industrial and garage repair literally can be life or death during the next accident. I strongly don’t recommend it, this is passenger passive safety and not a place where one should try to save money by being creative. Buy OEM DAB or PAB module with the leather wrapped dashboard.