Another update.

Couple month ago, I've got the car running and about couple weeks later, it started to miss fire with following CEL.
P0363, P1342, P1345, P1347, P1349
Cylinder 1-4 was miss firing. Darn... whole bank 1 is bad.
Swapped around coils/spark plugs between bank 1 and 2. No change.
Performed compression test. Cylinder 1-4 was about 75psi. Cylinder 5-8 was 160psi.
Damn it.
Thought I would re-time it just one last time, but life got too busy, progressed slowly, took me a month.

Last week, after re-time started the car, runs beautifully 160psi in all cylinders, but battery light came on.
After quick OBC test, alternator is toast not charging at all.
Drain the coolant again, replaced alternator then refilled coolant.
I must say water cooled alternator is stupidest idea from BMW. So much work just to replace alternator.
Knock on wood so far, but I'll drive around it little more before I get into suspension work. Pretty much all (front and back) rubber bushings need replacing, especially rear subframe bushings.
Also, trifecta is going on as well and will probably require rebuild.