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 1 x 2White ×15Trans-Clear ×8Trans-Clear is see-through: hold the piece up to a light.
Plate 2 x 3Light Aqua ×4Sand Green ×4Light Aqua is bluer and redder than Sand Green.
Plate 2 x 8Dark Turquoise ×2Medium Azure ×2Dark Turquoise is darker than Medium Azure.
Brick Curved Inverted 2 x 2 x 2/3Black ×4Dark Blue ×2Black is yellower and darker than Dark Blue.
Brick Sloped 30° 1 x 2 x 2/3Black ×1Dark Blue ×2Black is yellower and darker than Dark Blue.
Plate 1 x 2Black ×8Dark Blue ×1Black is yellower and darker than Dark Blue.
8 more look-alike pairs
Plate 2 x 3Black ×8Dark Blue ×6Black is yellower and darker than Dark Blue.
Plate 2 x 4Black ×1Dark Blue ×3Black is yellower and darker than Dark Blue.
Plate 3 x 3Black ×4Dark Blue ×18Black is yellower and darker than Dark Blue.
Plate 4 x 4Black ×4Dark Blue ×4Black is yellower and darker than Dark Blue.
Wedge Plate 6 x 6 Cut CornerBlack ×4Dark Blue ×4Black is yellower and darker than Dark Blue.
Wedge Plate 8 x 3, 22° LeftBlack ×4Dark Blue ×4Black is yellower and darker than Dark Blue.
Wedge Plate 8 x 3, 22° RightBlack ×4Dark Blue ×4Black is yellower and darker than Dark Blue.
Plate Round 1 x 1 with Solid StudBlack ×2Dark Bluish Gray ×10Black is darker than Dark Bluish Gray.
Technic Brick 1 x 16 [15 Pin Holes]RedPart 3703Element 370321×4
Technic Brick Special 1 x 2 with Pin Hole and 1 x 2 PlateRedPart 73109Element 6385920×6
Dark Azure
19 pieces
Bracket 1 x 2 - 1 x 2Dark AzurePart 99781Element 6152101×1
Brick Curved Inverted 2 x 1Dark AzurePart 24201Element 6475998 or 6231942×3
Brick Sloped 30° 1 x 2 x 2/3Dark AzurePart 85984Element 6151663×1
Plate 1 x 10Dark AzurePart 4477Element 6151666×5
Plate 1 x 3Dark AzurePart 3623Element 6153538 or 6089780×1
Plate 1 x 6Dark AzurePart 3666Element 6151657 or 6089833×2
Plate 2 x 2Dark AzurePart 3022Element 6206809 or 6088656×1
Plate 2 x 6Dark AzurePart 3795Element 4640891×1
Technic Brick 4 x 6 with 2 x 4 OpeningDark AzurePart 32531Element 6185546×4
Trans-Clear
18 pieces
Brick 1 x 2 without Bottom TubeTrans-ClearPart 3065Element 6514262 or 6244904×2
Brick Curved 2 x 1 No Studs [1/2 Bow]Trans-ClearPart 11477Element 6508253×4
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)Trans-ClearPart 54200Element 6245250 or 42443621 spare in the box×4
Plate 1 x 2Trans-ClearPart 3023Element 6514001 or 6240204Also in White×8
Dark Green
15 pieces
Plate 1 x 2Dark GreenPart 3023Element 6618076 or 6013797×4
Plate 2 x 4Dark GreenPart 3020Element 6618075 or 4586057×1
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)Dark GreenPart 4032aElement 6035029×4
Tile Round 1 x 1 QuarterDark GreenPart 25269Element 63156081 spare in the box×2
Wedge Plate 3 x 2 LeftDark GreenPart 43723Element 6167129×2
Wedge Plate 3 x 2 RightDark GreenPart 43722Element 6167130×1
Wedge Plate 3 x 3 Cut CornerDark GreenPart 2450Element 6328333 or 6005836×1
Dark Bluish Gray
13 pieces
Plate 1 x 12Dark Bluish GrayPart 60479Element 6133611 or 4666604×2
Plate Round 1 x 1 with Solid StudDark Bluish GrayPart 6141Element 42106331 spare in the boxAlso in Black×10
Plate Special 1 x 2 with 5.9mm Centre Side TowballDark Bluish GrayPart 14417Element 6414560 or 6338160×1
Dark Turquoise
13 pieces
Brick and Axle Separator v2.0Dark TurquoisePart 96874Element 6254100×3
Plate 1 x 12Dark TurquoisePart 60479Element 6391345×2
Plate 1 x 4Dark TurquoisePart 3710Element 6350418 or 4121705×2
Plate 2 x 10Dark TurquoisePart 3832Element 6249538×2
Plate 2 x 8Dark TurquoisePart 3034Element 6257063Also in Medium Azure×2
Technic Brick 1 x 2 [1 Pin Hole]Dark TurquoisePart 3700Element 6345402 or 4140338×2
Medium Azure
13 pieces
Brick Curved 2 x 2 x 2/3Medium AzurePart 15068Element 6119126×1
Brick Sloped 30° 1 x 2 x 2/3Medium AzurePart 85984Element 6097444×1
Plate 2 x 2Medium AzurePart 3022Element 6603309 or 4625032×1
Plate 2 x 4Medium AzurePart 3020Element 6603317 or 6013826×1
Plate 2 x 8Medium AzurePart 3034Element 6603343 or 6253666Also in Dark Turquoise×2
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)Medium AzurePart 4032aElement 6109752×4
Plate Special 2 x 2 with Groove and Center Stud (Jumper)Medium AzurePart 87580Element 6126090 or 6003008×2
Tile 2 x 3Medium AzurePart 26603Element 6233166×1
Coral
11 pieces
Plate 2 x 4CoralPart 3020Element 6305455×1
Wheel 8 x 6 with SlotCoralPart 34337Element 63103721 spare in the box×10
Dark Red
10 pieces
Plate 2 x 6Dark RedPart 3795Element 4618986 or 4164177×3
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)Dark RedPart 4032aElement 6448317×7
Orange
8 pieces
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×2
Plate 2 x 12OrangePart 2445Element 6313826 or 6056707×4
Technic Brick 1 x 2 [1 Pin Hole]OrangePart 3700Element 6136553 or 4160555×2
Flat Silver
6 pieces
Sports Roller SkateFlat SilverPart 11253Element 62154471 spare in the box×4
Tile Special 1 x 2 Grille with Bottom GrooveFlat SilverPart 2412bElement 4619636×2
Light Aqua
6 pieces
Plate 2 x 10Light AquaPart 3832Element 6355730×2
Plate 2 x 3Light AquaPart 3021Element 6426724 or 6192108Also in Sand Green×4
Magenta
6 pieces
Plate 2 x 12MagentaPart 2445Element 6093863×4
Technic Brick 1 x 4 [3 Pin Holes]MagentaPart 3701Element 6282101×2
Bright Light Orange
5 pieces
Plate 2 x 3Bright Light OrangePart 3021Element 6097503 or 4645048×2
Plate 2 x 6Bright Light OrangePart 3795Element 6097509×3
Reddish Orange
4 pieces
Plate 2 x 8Reddish OrangePart 3034Element 6469085×4
Bright Green
2 pieces
Plate 2 x 10Bright GreenPart 3832Element 6462430×2
Bright Light Blue
2 pieces
Plate 2 x 6Bright Light BluePart 3795Element 6132422 or 6013812×2
Bright Light Yellow
1 piece
Plate 2 x 4Bright Light YellowPart 3020Element 6554802 or 6296524×1
Opal Trans-Clear
1 piece
Brick 2 x 4 without Cross Supports [Modern]Opal Trans-ClearPart 3556Element 6508093 or 6439088×1
Pearl Gold
1 piece
Tile Round 1 x 1 with Compass PrintPearl GoldPart 98138pr0051Element 6287847 or 61419701 spare in the box×1
Reddish Brown
1 piece
Bag / BriefcaseReddish BrownPart 4449Element 6268857 or 4211235×1
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.