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.
544 pieces in 155 part and color combinations, plus 6 minifigures.
The piece count includes the 25 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.
Plate 1 x 10Black ×6Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 1 x 4Black ×9Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Tile Special 1 x 2 with HandleTanPart 2432Element 6021208 or 4124457×2
Animals / Creatures
1 piece
Animal, BatBlackPart 30103Element 4587312 or 4106513×1
Energy Effects
1 piece
Wave / Flame Rounded with Base PegsTrans-Light BluePart 6126aElement 4155537 or 612642×1
Minifig Headwear Accessories
1 piece
Headwear Accessory Plume / Feathers with PinDark Bluish GrayPart 30126Element 6170856 or 42239821 spare in the box×1
String, Bands and Reels
1 piece
Chain 17L [21 Links]BlackPart 30104Element 4516718 or 4106729×1
Minifigures
6 figures
Viktor Krum, Dark Bluish Gray Outfit, HatMinifigure, checked as a whole figure×1
Professor Igor KarkaroffMinifigure, checked as a whole figure×1
Hermione Granger, Gryffindor Sweater, Mid-Length HairMinifigure, checked as a whole figure×1
Ron Weasley, Gryffindor SweaterMinifigure, checked as a whole figure×1
Harry Potter, Tournament Uniform Red and Black with Hogwarts CrestMinifigure, checked as a whole figure×1
Albus Dumbledore, Sand Blue Outfit with Braid ClaspsMinifigure, 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.