based on Parts List for Face Lifted BMW X5 Contributed by LeMansX5,

it shows everything you need for face lift conversion, but only listed part number of 3.0i & 4.4i bumper with headlight cleaning system and PDC and contains old part numbers.
so, I've made new version of parts list for face lifted X5.
hope LeMans doesn't mind

41-35-7-121-007 SIDE PANEL FRONT LEFT
41-35-7-121-008 SIDE PANEL FRONT RIGHT
41-61-7-121-102 HOOD

BUMPER
51-11-7-129-294 3.0i & 4.4i BUMPER
51-11-7-129-297 3.0i & 4.4i BUMPER WITH HEADLIGHT CLEANING SYSTEM AND PDC
51-11-7-129-295 3.0i & 4.4i BUMPER WITH PDC
51-11-7-129-296 3.0i & 4.4i BUMPER WITH HEADLIGHT CLEANING SYSTEM
51-11-7-146-579 4.8is BUMPER
51-11-7-146-578 4.8is BUMPER WITH PDC

51-11-7-111-767 GRID, BOTTOM
51-11-7-116-397 GRID UPPER PART LEFT
51-11-7-116-398 GRID UPPER PART RIGHT

63-12-6-940-173 BI-XENON HEADLIGHT, LEFT
63-12-6-940-174 BI-XENON HEADLIGHT, RIGHT

63-13-7-164-491 ADDIT. TURN INDICATOR LAMP, LEFT WHITE
63-13-7-164-492 ADDIT. TURN INDICATOR LAMP, RIGHT WHITE
(These are new part numbers.)

63-17-6-920-885 FOG LAMP LEFT
63-17-6-920-886 FOG LAMP RIGHT

51-13-7-124-815 GRILLE, FRONT, LEFT
51-13-7-124-816 GRILLE, FRONT, RIGHT

if you decided to convert your X5 to 4.8is look, These parts are for rear bumper.

51-12-7-062-601 SUPPORT REAR BUMPER TRIM, PRIMED
51-12-7-062-599 SUPPORT COVER, LEFT, PRIMED
51-12-7-062-600 SUPPORT COVER, RIGHT, PRIMED

also, you might want to add rear fender flares, there is WHEEL ARCH EXTENSIONS RETROFIT KIT

51-71-0-398-336 RETROFIT KIT, WHEEL ARCH EXTENSIONS

and Installation Instructions here.

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Check out my X5 here