Here is a mini guide, that the files team use the reference if an ECU is safe to write to on OBD2 or it must be done by Tricore Boot mode.

All Insignia 2.0 CDTI DPF jobs are KTAG only

If you spot any changes based on own experience, or have additions, please feel free to add comments.

BMW EDC17
OBD2 SAFE 1037-
• 390654
• 390655
• 390656
• 390657
• 391386
• 391387
• 391388
• 393182
• 394078
• 394079
• 394080
• 395777
• 395779
• 396560
• 396562
• 396563
• 396565
• 500771
• 500772
• 507452
• 509475
• 509476

BMW EDC17
BOOT ONLY 1037-
• 389229
• 389230
• 391389
• 392383
• 395774
• 395778
• 396564
• 396567
• 397454
• 397572
• 399762
• 399763
• 399764
• 399768
• 400488
• 500770
• 501603
• 501612
• 501613
• 501614
• 502660
• 504248
• 504297
• 504298
• 504299
• 504976
• 504977
• 506047
• 507434
• 507435
• 507446
• 507449
• 507450
• 507451
• 507453
• 509478
• 509479
• 513572
• 513573
• 513581
• 513582
• 514074
• 515065
• 515070
• 515071
• 517681
• 517682
• 518559
• 522657
• 525082

Opel Insignia EDC17
OBD2 SAFE 1037-
• 400396
• 500098
• 506568
• 506220
• 506221
• 520102
• A50598
• A50627
• A50707
• A50868
• A50869
• A50871
• A50874

Opel Insignia EDC17
BOOT ONLY 1037-
• 501148
• 503587
• 506071
• 506500
• 506551
• 506610
• 506611
• 509470
• 520088
• 520360
• 520393
• 520490
• 522239
• 529404
• 529580
• 529583
• 529584
• 529586
• 529593
• A50818
• A50858
• A50860
• A50862