Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece
and leave with the element ID LEGO asks for, or a link to buy the part.
Builders who report a missing piece often find it in one of these places. Tick each one off as you look.
Look-alike colors in this set
These parts appear in this set in two colors that are easy to confuse. If you are one short in one color,
check whether it went in where the other color belongs. Each color has its own element ID in the parts list
at the back of the instructions.
Technic Pin without Friction Ridges LengthwiseLight Gray ×20Light Bluish Gray ×60Light Gray is yellower than Light Bluish Gray.
Brick Wedged, Angled 3 x 2 LeftOrangePart 6565Element 4620692 or 4550010×1
Brick Wedged, Angled 3 x 2 RightOrangePart 6564Element 4620691 or 4550014×1
Containers
2 pieces
Box / Crate with Handholds 3 x 4 x 1 2/3BrownPart 30150Element 4109963×2
Windows and Doors
2 pieces
Door 1 x 3 x 1 LeftBlackPart 3822Element 6024114 or 382226×1
Door 1 x 3 x 1 RightBlackPart 3821Element 6024113 or 4141587×1
Transportation - Land
1 piece
Seat / Chair 2 x 2 with Center Sprue MarkRedPart 4079bElement 407921×1
Tick each piece as you find it, or mark it missing.
When a piece really is missing
Ask LEGO
LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for
the set number and each piece's element ID, the number printed beside the piece in the parts list at the back
of the instructions. This checker lists both.
Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from
older or second-hand sets.
Keep a record
Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick
pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.