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.
Plate Round 1 x 1 with Solid StudWhite ×12Trans-Clear ×31Trans-Clear is see-through: hold the piece up to a light.
Brick 1 x 1Dark Tan ×1Tan ×3Dark Tan is darker than Tan.
Brick 2 x 4Tan ×1Dark Tan ×4Tan is lighter than Dark Tan.
Plate 1 x 2Tan ×19Dark Tan ×21Tan is lighter than Dark Tan.
Plate 1 x 4Tan ×6Dark Tan ×2Tan is lighter than Dark Tan.
Plate 2 x 2Dark Tan ×8Tan ×3Dark Tan is darker than Tan.
24 more look-alike pairs
Plate 2 x 2 CornerDark Tan ×4Tan ×8Dark Tan is darker than Tan.
Plate 2 x 4Tan ×3Dark Tan ×3Tan is lighter than Dark Tan.
Tile 1 x 2 with GrooveTan ×4Dark Tan ×10Tan is lighter than Dark Tan.
Tile 1 x 4 with GrooveTan ×2Dark Tan ×13Tan is lighter than Dark Tan.
Tile 1 x 6 with GrooveTan ×10Dark Tan ×1Tan is lighter than Dark Tan.
Tile 2 x 2 with GrooveTan ×1Dark Tan ×1Tan is lighter than Dark Tan.
Tile 45° Cut 2 x 2 (Triangle)Dark Tan ×10Tan ×6Dark Tan is darker than Tan.
Bar 2L with TowballBlack ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Brick 1 x 2Dark Bluish Gray ×3Black ×4Dark Bluish Gray is lighter than Black.
Brick 1 x 2 x 2 with Inside Stud HolderDark Bluish Gray ×1Black ×3Dark Bluish Gray is lighter than Black.
Brick 1 x 3Dark Bluish Gray ×4Black ×2Dark Bluish Gray is lighter than Black.
Brick 1 x 4Black ×2Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Brick 1 x 8Dark Bluish Gray ×2Black ×7Dark Bluish Gray is lighter than Black.
Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version]Dark Bluish Gray ×8Black ×2Dark Bluish Gray is lighter than Black.
Plate 1 x 1Dark Bluish Gray ×2Black ×4Dark Bluish Gray is lighter than Black.
Plate 1 x 2Dark Bluish Gray ×2Black ×8Dark Bluish Gray is lighter than Black.
Plate 1 x 3Black ×5Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 1 x 4Black ×10Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate 2 x 12Black ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 2 x 3Dark Bluish Gray ×8Black ×8Dark Bluish Gray is lighter than Black.
Plate 2 x 4Black ×10Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Plate 4 x 4 CornerDark Bluish Gray ×1Black ×4Dark Bluish Gray is lighter than Black.
Plate Round 4 x 4 with Pin HoleDark Bluish Gray ×4Black ×4Dark Bluish Gray is lighter than Black.
Tile 1 x 2 with GrooveBlack ×16Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Technic Beam 1 x 2 with Towball StraightLight Bluish GrayPart 5995Element 6506199×2
Technic Beam 1 x 2 with Axle on SideOrangePart 7244Element 6540720×1
Rock
2 pieces
Rock Panel Rectangular 4 x 10 x 6Dark Bluish GrayPart 6082Element 4279446×2
Supports, Girders and Cranes
2 pieces
Support Half Round 2 x 4 x 13Trans-ClearPart 1749Element 6507798 or 6400117×2
Technic Panels
2 pieces
Technic Panel Bell, Half Curve 10 x 11 x 5 1/2Dark OrangePart 7345Element 6576897×2
Transportation - Land
2 pieces
Wheel Arch, Mudguard 2 x 3 x 1 1/3 with 2 x 2 PlateDark PinkPart 49097Element 6518735×2
Tools
1 piece
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
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.