Just bought 02 x5 3L about a month ago and done following.

1. VCG
2. Vanos seal
3. OFHG
4. ATF flush -> Valvoline Dex6
5. Front and Rear Diff flush -> Castrol 75W-90
6. Transfer case flush -> Valvoline Dex6
7. oil change -> Mobil1 0w-40
8. replace trunk hatch handle
9. driver side power seat switch
10. power steering reservoir and hoses and flush -> Valvoline Dex6
11. cabin air filter
12. driver side window regulator
13. other misc items such as replacing broken cup holder clips
14. installed GROM USB (from my previous e46)

Spent $550 so far.

Will be replacing front thrust arms, control arms, and ball joints in next few months.