Thanks LA02Max, I really appreciate it the help. Us Louisiana E53 guys are few and far between!

On closer inspection it is the triangular trim piece on my car too that is falling apart so I ordered both sides this am. I think some chunks of it may be binding the window too, which is why I thought it was the main window trim, or more likely the stupid regulator is about to give out again. I replaced my front right a few months ago and I heard it pop last week! Weaker men would give up on these cars just because of the regulators. I did go with a cheap aftermarket regulator so, my fault I think.

Hopefully that triangular trim will come out easily.

__________________
Current
Original owner 2002 E53 X5 4.4i to 4.6i swap
2026 G80 M3 6 spd
2025 G06 X5 50e
Former
1972 Audi Fox
1986 Saab 900S
1996 BMW Z3
1998 BMW E36 M3 Sedan
2004 BMW E46 M3
2006 Audi A3 Quatro
1993 Mopar 318 Jeep Grand Cherokee
2015 V6 Jeep Grand Cherokee