[Agent11br]

Just completed this retrofit in my '07 e90 335i. Greatly appreciate the DIY thread! It was fairly easy and straightforward. A few item quantities are off though, as well as my car did not have the bolster clips, I was missing two LATCH covers, and I optioned to not do the middle belt.

If you have the seats/bolsters/headrests, but nothing else, here is what you would need:


Seat Back Locks
-Left: 52 20 7 112 863
-Right: 52 20 7 112 864

Seat Back Lock Actuators
-Left: 52 20 7 151 369
-Right: 52 20 7 151 370

Cable Holders: 72 11 8 177 700, [2x] (optional)
Seat Back Lock Actuators Screws: 07 11 9 901 299 [4x]
Seat Back Lock Actuators Screw Hole Inserts: 63 12 1 374 075 [4x]

Folding Seat Support Bracket: 52 20 7 161 259
Folding Seat Support Bracket Screws: 07 14 7 161 279 [2x]
Folding Seat Back End Support Brackets: 52 20 7 118 701 [2x]
Folding Seat Back End Support Bracket Torx Bolts: 07 14 6 952 304 [2x]

OEM Two Piece Middle Seat Belt (optional)
Upper Part: 72 11 7 132 245
Lower Part: 72 11 9 138 232

OEM Lower Child LATCH Covers (may need if yours are broken or missing)
ISOFIX Cover: 52207118674 [max 4x]

Side Bolster Clips (may need, my car did not have them)
Side Clip: 52207157536 [2x]