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.
825 pieces in 351 part and color combinations, plus 9 minifigures.
The official piece count includes the 43 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 1Red ×6Trans-Red ×8Trans-Red is see-through: hold the piece up to a light.
Plate 2 x 3Black ×2Dark Blue ×2Black is yellower and darker than Dark Blue.
Plate 2 x 4Black ×1Dark Blue ×1Black is yellower and darker than Dark Blue.
Brick 2 x 2 CornerBlack ×2Dark Bluish Gray ×13Black is darker than Dark Bluish Gray.
Plate 1 x 4Black ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 1 x 6Black ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
2 more look-alike pairs
Plate 2 x 4Black ×1Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate Special 1 x 2 Rounded with 2 Open StudsBlack ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Sticker Sheet for Set 75583-1[No Color/Any Color]Part 10108464Element 6485642×1
Technic Panels
1 piece
Technic Panel Fairing 2 x 1 x 1WhitePart 89679Element 6434569×1
Tools
1 piece
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Minifigures
9 figures
Gru Jr.Minifigure, checked as a whole figure×1
EdithMinifigure, checked as a whole figure×1
LucyMinifigure, checked as a whole figure×1
Gru, ScarfMinifigure, checked as a whole figure×1
Mega Minion MellMinifigure, checked as a whole figure×1
Mega Minion TimMinifigure, checked as a whole figure×1
MargoMinifigure, checked as a whole figure×1
AgnesMinifigure, checked as a whole figure×1
Mega Minion JerryMinifigure, 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.