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.
1,489 pieces in 487 part and color combinations, plus 6 minifigures.
The official piece count includes the 24 parts inside the set's minifigures, which this inventory lists separately. 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 Round 1 x 1Yellow ×5Trans-Yellow ×4Trans-Yellow is see-through: hold the piece up to a light.
Brick 1 x 1Tan ×4Light Nougat ×10Tan is yellower and darker than Light Nougat.
Tile 1 x 2 with GrooveTrans-Orange ×1Orange ×2Trans-Orange is see-through: hold the piece up to a light.
Brick 1 x 1Dark Turquoise ×1Medium Azure ×12Dark Turquoise is darker than Medium Azure.
Brick 1 x 2Medium Azure ×21Dark Turquoise ×3Medium Azure is lighter than Dark Turquoise.
Plate 1 x 2Dark Turquoise ×3Medium Azure ×9Dark Turquoise is darker than Medium Azure.
2 more look-alike pairs
Plate 2 x 6Dark Blue ×1Black ×1Dark Blue is bluer and lighter than Black.
Plate Special Round 2 x 2 with Center Stud (Jumper Plate)Dark Bluish Gray ×2Black ×2Dark Bluish Gray is lighter than Black.
Large Figure Weapon, Barrel with 2 Pin Holes and 3 Axle HolesDark OrangePart 98585Element 6186131 or 6071683×1
Pneumatics
1 piece
Pneumatic T-Piece (T Bar) [New Style]Light Bluish GrayPart 4697bElement 42115081 spare in the box×1
Stickers
1 piece
Sticker Sheet for Set 41748-1[No Color/Any Color]Part 10104102Element 6441080×1
Technic Bushes
1 piece
Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedLight Bluish GrayPart 32123bElement 6271165 or 42115731 spare in the box×1
Technic Gears
1 piece
Technic Gear 20 Tooth BevelTanPart 32198Element 6031962 or 4514557×1
Technic Steering, Suspension and Engine
1 piece
Technic Engine CrankshaftLight Bluish GrayPart 2853Element 6640384 or 4211609×1
Tools
1 piece
Brick and Axle Separator v2.0Dark TurquoisePart 96874Element 6254100×1
Minifigures
6 figures
Olly - White Top, Sand Blue LegsMinifigure, checked as a whole figure×1
Liann - White Top, Lime SkirtMinifigure, checked as a whole figure×1
Stephanie - AdultMinifigure, checked as a whole figure×1
Zac - Blue Shirt, White PantsMinifigure, checked as a whole figure×1
Paisley - White Top, Sand Blue LegsMinifigure, checked as a whole figure×1
Nova - Dark Purple Top, Yellowish Green SkirtMinifigure, checked as a whole figure×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.