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.
5,056 pieces in 702 part and color combinations, plus 20 minifigures.
LEGO counts 5,129 pieces. This inventory comes from a separate parts catalog and lists 5,139, including the 83 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 1 x 2White ×17Trans-Clear ×16Trans-Clear is see-through: hold the piece up to a light.
Plate Round 1 x 1 with Solid StudDark Bluish Gray ×8Flat Silver ×4Dark Bluish Gray is darker than Flat Silver.
Tile 1 x 3Reddish Brown ×3Dark Brown ×1Reddish Brown is redder and lighter than Dark Brown.
Plate 1 x 2Tan ×33Dark Tan ×2Tan is lighter than Dark Tan.
Plate 1 x 3Tan ×3Dark Tan ×1Tan is lighter than Dark Tan.
Plate 1 x 4Tan ×25Dark Tan ×1Tan is lighter than Dark Tan.
48 more look-alike pairs
Plate 2 x 2 CornerTan ×8Dark Tan ×1Tan is lighter than Dark Tan.
Plate 2 x 4Tan ×4Dark Tan ×1Tan is lighter than Dark Tan.
Bracket 1 x 2 - 2 x 2 InvertedBlack ×12Dark Blue ×7Black is yellower and darker than Dark Blue.
Brick 1 x 2Black ×16Dark Blue ×4Black is yellower and darker than Dark Blue.
Brick Curved 2 x 2 x 2/3Black ×28Dark Blue ×8Black is yellower and darker than Dark Blue.
Plate 1 x 2Black ×41Dark Blue ×8Black is yellower and darker than Dark Blue.
Plate 2 x 3Black ×2Dark Blue ×7Black is yellower and darker than Dark Blue.
Plate 3 x 3Black ×2Dark Blue ×4Black is yellower and darker than Dark Blue.
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)Black ×25Dark Blue ×3Black is yellower and darker than Dark Blue.
Plate Special 1 x 2 with Handle on End [Closed Ends]Black ×3Dark Blue ×4Black is yellower and darker than Dark Blue.
Plate Special 2 x 2 with Groove and Center Stud (Jumper)Black ×2Dark Blue ×1Black is yellower and darker than Dark Blue.
Plate Special 2 x 2 with Only 2 studsBlack ×11Dark Blue ×14Black is yellower and darker than Dark Blue.
Tile 1 x 2 with GrooveBlack ×10Dark Blue ×22Black is yellower and darker than Dark Blue.
Bar 2L with Stop in CenterBlack ×6Dark Bluish Gray ×6Black is darker than Dark Bluish Gray.
Bracket 1 x 2 - 1 x 2Black ×12Dark Bluish Gray ×14Black is darker than Dark Bluish Gray.
Bracket 1 x 2 - 2 x 2Black ×6Dark Bluish Gray ×10Black is darker than Dark Bluish Gray.
Bracket 2 x 2 with 1 x 2 Vertical StudsBlack ×8Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Brick 1 x 2Black ×16Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Brick Sloped Inverted 45° 6 x 1 Double with 1 x 4 RecessedBlack ×1Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Brick Sloped Inverted 45° 6 x 2 Double with 2 x 4 RecessedBlack ×7Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Brick Special 1 x 4 with 4 Studs on One SideBlack ×2Dark Bluish Gray ×7Black is darker than Dark Bluish Gray.
Plate 1 x 10Black ×4Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate 1 x 2Black ×41Dark Bluish Gray ×14Black is darker than Dark Bluish Gray.
Plate 1 x 4Black ×20Dark Bluish Gray ×8Black is darker than Dark Bluish Gray.
Plate 1 x 6Black ×20Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 1 x 8Black ×6Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate 2 x 10Black ×9Dark Bluish Gray ×5Black is darker than Dark Bluish Gray.
Plate 2 x 16Black ×2Dark Bluish Gray ×22Black is darker than Dark Bluish Gray.
Plate 2 x 2Black ×4Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 2 x 3Black ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 2 x 6Black ×11Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate 2 x 8Black ×5Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate 3 x 3Black ×2Dark Bluish Gray ×9Black is darker than Dark Bluish Gray.
Plate Round 1 x 1 with Open StudBlack ×35Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate Round 1 x 1 with Solid StudBlack ×34Dark Bluish Gray ×8Black is darker than Dark Bluish Gray.
Plate Special 1 x 2 Rounded with 2 Open StudsBlack ×2Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate Special 2 x 2 with Groove and Center Stud (Jumper)Black ×2Dark Bluish Gray ×22Black is darker than Dark Bluish Gray.
Technic Beam 1 x 2 ThinBlack ×11Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Technic Brick 1 x 16 [15 Pin Holes]Black ×2Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Technic Brick 1 x 2 [1 Pin Hole]Black ×4Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Technic Brick 1 x 4 [3 Pin Holes]Black ×16Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Technic Pin Connector Hub with 1 AxleBlack ×1Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Tile 1 x 1 with GrooveBlack ×6Dark Bluish Gray ×16Black is darker than Dark Bluish Gray.
Tile 1 x 2 with GrooveBlack ×10Dark Bluish Gray ×8Black is darker than Dark Bluish Gray.
Tile 1 x 3Black ×4Dark Bluish Gray ×12Black is darker than Dark Bluish Gray.
Tile 2 x 2 Curved, MacaroniBlack ×4Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Tile 2 x 4 with GrooveBlack ×4Dark Bluish Gray ×31Black is darker than Dark Bluish Gray.
Tile Round 1 x 1 QuarterBlack ×4Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Treasure Chest Bottom with Rear Slots, No GroovePearl TitaniumPart 4738cElement 6375781×1
Treasure Chest Lid, Flat with 2 StudsPearl TitaniumPart 80835Element 6366436×1
Trans-Red
2 pieces
Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki EyeTrans-RedPart 58176Element 6507867 or 61717621 spare in the box×2
Dark Pink
1 piece
Tile 1 x 1 HeartDark PinkPart 39739Element 6486304 or 62561301 spare in the box×1
Dark Turquoise
1 piece
Brick and Axle Separator v2.0Dark TurquoisePart 96874Element 6254100×1
Metallic Gold
1 piece
Dish 3 x 3 Inverted [Radar]Metallic GoldPart 43898Element 6189071 or 6010442×1
Opal Trans-Clear
1 piece
Plate Special 8-Sided Crystal/Gem 1 x 1 x 2/3Opal Trans-ClearPart 65092Element 6514349 or 62873091 spare in the box×1
Pearl Gold
1 piece
Wheel 18 x 14 with Pin HolePearl GoldPart 55889Element 6403912×1
Yellowish Green
1 piece
Plate Round 1 x 1 with Solid StudYellowish GreenPart 6141Element 60578981 spare in the box×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 76405-1[No Color/Any Color]Part 10100778Element 6454107 or 6410897×1
Minifigures
20 figures
Dementor, BlackMinifigure, checked as a whole figure×1
Harry Potter, Sand Blue Shirt, Short Dark Tan Legs, ScaredMinifigure, checked as a whole figure×1
Ron Weasley, Olive Green Jacket, Dirt On NoseMinifigure, checked as a whole figure×1
Hermione Granger, Gryffindor Robe Open with Tie, Short Legs, SkirtMinifigure, checked as a whole figure×1
Train Conductor, Dark Red Suit, Dark Red Cap, Warm Tan HeadMinifigure, checked as a whole figure×1
Trolley Witch, Dark Red LegsMinifigure, checked as a whole figure×1
Harry Potter, Dark Blue Jacket with Zipper, Medium Dark Bluish Gray LegsMinifigure, checked as a whole figure×1
Ron Weasley, Dark Bluish Gray Jacket, Medium Dark Brown LegsMinifigure, checked as a whole figure×1
Hermione Granger, Light Bluish Gray Sweater with Stripes, Medium Black LegsMinifigure, checked as a whole figure×1
Remus Lupin, Dark Brown Torn Suit (Printed Legs)Minifigure, checked as a whole figure×1
Harry Potter, Open Light Bluish Gray Jacket over White Shirt, Dark Blue LegsMinifigure, checked as a whole figure×1
Draco Malfoy, Black Jacket, Dark Green Shirt, Black LegsMinifigure, checked as a whole figure×1
Luna Lovegood, Dark Pink Jacket, Printed SkirtMinifigure, checked as a whole figure×1
Harry Potter, Adult, Black Jacket, Dark Blue LegsMinifigure, checked as a whole figure×1
Ginny Weasley, Adult, Dark Tan Jacket, Black LegsMinifigure, checked as a whole figure×1
James Sirius Potter, Light Bluish Grey Jacket, Medium Dark Blue LegsMinifigure, checked as a whole figure×1
Albus Severus PotterMinifigure, checked as a whole figure×1
Lily Luna PotterMinifigure, checked as a whole figure×1
Ravenclaw StudentMinifigure, checked as a whole figure×1
Hufflepuff StudentMinifigure, 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.