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.
Bracket 1 x 2 - 1 x 2 InvertedBlack ×1Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Technic Brick Special 2 x 2 with Ball Socket Wide and Axle Hole, No Arm HolesRedPart 67696Element 6406930×1
Tile Special 1 x 2 with HandleRedPart 2432Element 243221×2
Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot]RedPart 99563Element 6394880×1
Tan
2 pieces
Plate Round 1 x 1 with Solid StudTanPart 6141Element 4161734 or 6141051 spare in the box×2
Yellow
2 pieces
Technic Axle 3YellowPart 4519Element 6130007×2
Bright Pink
1 piece
Plate 2 x 2Bright PinkPart 3022Element 6096589 or 4245314×1
Dark Pink
1 piece
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)Dark PinkPart 4032aElement 6326495×1
Dark Red
1 piece
Arm Mechanical with Clip [Thick Support]Dark RedPart 98313Element 6276866 or 6006738×1
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.