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.
1,554 pieces in 312 part and color combinations, plus 1 minifigure.
LEGO counts 1,559 pieces. This inventory comes from a separate parts catalog and lists 1,558, including the 4 parts inside the minifigures; 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.
Plate 2 x 6Tan ×1Dark Tan ×4Tan is lighter than Dark Tan.
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)Black ×2Dark Bluish Gray ×8Black is darker than Dark Bluish Gray.
Brick Sloped 30° 1 x 2 x 2/3Black ×4Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 1 x 3Black ×4Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 2 x 2Black ×6Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate 2 x 4Black ×9Dark Bluish Gray ×7Black is darker than Dark Bluish Gray.
4 more look-alike pairs
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)Black ×14Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate Special 1 x 2 with Clip Horizontal on EndBlack ×2Dark Bluish Gray ×32Black is darker than Dark Bluish Gray.
Tile 1 x 1 with GrooveBlack ×2Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Tile 1 x 8 with GrooveBlack ×4Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Technic Shock Absorber 6.5L with Soft Spring, Standard Coil [Complete Assembly]Light Bluish GrayPart 76138Element 6027565 or 4265688×4
Transportation - Sea and Air
4 pieces
Technic Cylinder 4 x 4 with Pin Holes and Centre Bar, Closed Sides on BarLight Bluish GrayPart 41531Element 4507052 or 4285324×4
Minifig Accessories
2 pieces
Equipment Hose Nozzle / Gun with Side String Hole SimplifiedBlackPart 60849Element 6641462 or 45375511 spare in the box×1
Equipment Hose Nozzle / Gun with Side String Hole SimplifiedLight Bluish GrayPart 60849Element 6641461 or 45158971 spare in the box×1
Stickers
2 pieces
Sticker Sheet 1 for Set 10240-1[No Color/Any Color]Part 15144Element 60458981 spare in the box×1
Sticker Sheet 2 for Set 10240-1[No Color/Any Color]Part 14584Element 6041468×1
Tools
1 piece
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Windscreens and Fuselage
1 piece
Windscreen 6 x 13 x 2Trans-ClearPart 13252Element 6439171 or 6039915×1
Minifigures
1 figure
Astromech Droid, R2-D2, Light Bluish Gray DomeMinifigure, 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.