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.
Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot]Dark Bluish Gray ×2Flat Silver ×1Dark Bluish Gray is darker than Flat Silver.
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)Reddish Brown ×1Dark Brown ×1Reddish Brown is redder and lighter than Dark Brown.
Plate 1 x 2Black ×3Dark Bluish Gray ×20Black is darker than Dark Bluish Gray.
Plate 3 x 3Black ×1Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Technic Axle Connector 2 x 3 with Ball Socket, Closed SidesBlack ×1Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Technic Link Tread with Beveled EdgeBlackPart 15379Element 60478852 spares in the box×56
Technic Pin with Friction Ridges Lengthwise with No Center SlotsBlackPart 61332Element 62798751 spare in the box×8
Tile 1 x 3 with Yellow Robot Eyes PrintBlackPart 63864pr0064Element 6568752×1
Tyre 17.5 x 6 with Shallow Staggered Treads and Middle BandBlackPart 92409Element 4617848×2
Tyre Offset Tread with Center Band 23 x 7BlackPart 61254Element 4541455×2
Wheel 18 x 8 with Fake Bolts and Deep Spokes with Inner RingBlackPart 13971Element 6194485×2
Bright Light Orange
64 pieces
Brick Curved 1 x 1 x 2/3 Double Curved Top, No StudsBright Light OrangePart 49307Element 6341470×2
Brick Sloped 45° 2 x 1 with 2/3 Inverted Cutout and no studBright Light OrangePart 28192Element 6485427×2
Brick Sloped 45° 2 x 4 with 2/3 Inverted Cutout and no StudsBright Light OrangePart 5540Element 6536557×1
Plate 1 x 1Bright Light OrangePart 3024Element 6073040 or 60287401 spare in the box×4
Plate 1 x 3Bright Light OrangePart 3623Element 6073042 or 4645045×2
Plate 1 x 6Bright Light OrangePart 3666Element 6020074×2
Plate 2 x 2Bright Light OrangePart 3022Element 6003033 or 4645047×5
Plate 2 x 3Bright Light OrangePart 3021Element 6097503 or 4645048×3
Plate 4 x 4Bright Light OrangePart 3031Element 6093272 or 4243921×1
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)Bright Light OrangePart 15573Element 6122504×3
Plate Special 1 x 2 with Pin Hole on TopBright Light OrangePart 11458Element 6310196×2
Plate Special 1 x 4 with 2 Studs with Groove [New Underside]Bright Light OrangePart 41740Element 6257595×7
Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Half Hollow Anti-stud] - Updated VersionBright Light OrangePart 4304Element 6568815×11
Tile 1 x 1 with GrooveBright Light OrangePart 3070bElement 60655041 spare in the box×3
Tile 1 x 2 with GrooveBright Light OrangePart 3069bElement 4622062×1
Tile 1 x 3 with Scuffed White/Black Warning Stripes PrintBright Light OrangePart 63864pr0065Element 6559000×2
Tile 1 x 4 with GrooveBright Light OrangePart 2431Element 6072668 or 6020076×1
Tile 1 x 6 with GrooveBright Light OrangePart 6636Element 6365966 or 4654129×2
Tile 2 x 3 with Black rectangle, Rust Stains PrintBright Light OrangePart 26603pr0173Element 6559001×3
Tile 2 x 6 with 'WALL.E', Rust Stains PrintBright Light OrangePart 69729pr0056Element 6559003×1
Technic Axle 4RedPart 3705Element 6129995 or 4265797×1
Trans-Red
4 pieces
Plate 1 x 2Trans-RedPart 3023Element 6514003 or 6240212×4
Blue
3 pieces
Technic Axle Pin with Friction Ridges LengthwiseBluePart 43093Element 4309323 or 4206482×2
Technic Pin Long with Friction Ridges Lengthwise, 1 Center SlotBluePart 42924Element 6299413×1
Bright Light Yellow
3 pieces
Bracket 1 x 1 - 1 x 1 InvertedBright Light YellowPart 36840Element 6236034×2
Brick 2 x 4Bright Light YellowPart 3001Element 6373312 or 6117319×1
Bright Light Blue
2 pieces
Bracket 1 x 1 - 1 x 1 InvertedBright Light BluePart 36840Element 6383095×2
Light Aqua
2 pieces
Plate 2 x 4Light AquaPart 3020Element 6138662 or 6014539×2
Dark Brown
1 piece
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)Dark BrownPart 4032aElement 4623298Also in Reddish Brown×1
Orange
1 piece
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Trans-Clear
1 piece
Dish 6 x 6 Inverted (Radar) with Solid StudsTrans-ClearPart 44375bElement 6507944 or 6220743×1
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.