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.
LEGO counts 1,106 pieces. This inventory comes from a separate parts catalog and lists 1,107; the two do not always count the same elements, so their totals differ. Spare parts are counted in neither figure.
Before you call it missing
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 1 x 2 with GrooveRed ×1Trans-Red ×1Trans-Red is see-through: hold the piece up to a light.
Plate Round 1 x 1 with Solid StudLight Bluish Gray ×3Metallic Silver ×14Light Bluish Gray is yellower than Metallic Silver.
Brick 1 x 1Black ×1Dark Blue ×2Black is yellower and darker than Dark Blue.
Brick 1 x 2Black ×2Dark Blue ×7Black is yellower and darker than Dark Blue.
Brick 2 x 4Black ×2Dark Blue ×1Black is yellower and darker than Dark Blue.
Brick Curved Inverted 4 x 1Black ×2Dark Blue ×4Black is yellower and darker than Dark Blue.
9 more look-alike pairs
Plate 1 x 2Black ×12Dark Blue ×11Black is yellower and darker than Dark Blue.
Plate 1 x 3Black ×7Dark Blue ×7Black is yellower and darker than Dark Blue.
Plate 2 x 2Black ×1Dark Blue ×5Black is yellower and darker than Dark Blue.
Plate 2 x 2 CornerBlack ×6Dark Blue ×1Black is yellower and darker than Dark Blue.
Plate 2 x 3Black ×2Dark Blue ×5Black is yellower and darker than Dark Blue.
Plate 2 x 4Black ×1Dark Blue ×1Black is yellower and darker than Dark Blue.
Plate 2 x 6Black ×1Dark Blue ×5Black is yellower and darker than Dark Blue.
Plate Round 1 x 1 with Solid StudBlack ×6Dark Blue ×4Black is yellower and darker than Dark Blue.
Tile 1 x 1 with GrooveBlack ×1Dark Blue ×1Black is yellower and darker than Dark Blue.
Tile 1 x 2 with GrooveRedPart 3069bElement 4178178 or 306921Also in Trans-Red×1
Tile Round 1 x 1RedPart 98138Element 6284574 or 60634451 spare in the box×2
Blue
10 pieces
Bar 3LBluePart 87994Element 63456341 spare in the box×2
Technic Pin 1/2 without Friction RidgesBluePart 4274Element 41430051 spare in the box×3
Technic Pin Long with Friction Ridges Lengthwise, 1 Center SlotBluePart 42924Element 6299413×4
Technic Plate 2 x 4 [3 Holes]BluePart 3709Element 370923×1
Trans-Red
9 pieces
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)Trans-RedPart 54200Element 6245252 or 42443631 spare in the box×2
Plate 1 x 1Trans-RedPart 3024Element 6513963 or 62520421 spare in the box×2
Plate 1 x 2Trans-RedPart 3023Element 6514003 or 6240212×3
Tile 1 x 1 with GrooveTrans-RedPart 3070bElement 6581817 or 62542481 spare in the box×1
Tile 1 x 2 with GrooveTrans-RedPart 3069bElement 6514220 or 6251290Also in Red×1
Bright Light Orange
6 pieces
Plant, Flower, Minifig Accessory with 7 Thick Petals and PinBright Light OrangePart 32606Element 62129941 spare in the box×6
Dark Tan
6 pieces
Brick Curved 2 x 2 x 2/3Dark TanPart 15068Element 6093038×1
Plate 4 x 6Dark TanPart 3032Element 6167894 or 4266898×1
Tile 1 x 4 with GrooveDark TanPart 2431Element 6175927×4
Trans-Clear
2 pieces
Dish 4 x 4 Inverted with Open Stud [Radar]Trans-ClearPart 35394Element 6503214 or 6252205×1
Plate Round 1 x 1 with Solid StudTrans-ClearPart 6141Element 6514052 or 62400301 spare in the box×1
Bright Green
1 piece
Plant, Leaves, Round 2 x 2 x 2/3 with + Axle Hole and 4 Leaf ExtensionsBright GreenPart 15469Element 6345196×1
Orange
1 piece
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 10298-1[No Color/Any Color]Part 01023Element 6385137×1
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.