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.
357 pieces in 126 part and color combinations, plus 6 minifigures.
LEGO counts 401 pieces. This inventory comes from a separate parts catalog and lists 399, including the 42 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 4Black ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Technic Beam 1 x 5 ThickBlack ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Tile 1 x 4 with GrooveBlack ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Technic Panel Fairing # 5 Small Short, Large Hole, Side ARedPart 32527Element 4143152×2
Technic Panel Fairing # 6 Small Short, Large Hole, Side BRedPart 32528Element 4143150×2
Blue
12 pieces
Technic Axle Pin with Friction Ridges LengthwiseBluePart 43093Element 4309323 or 4206482×12
White
11 pieces
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, SmallWhitePart 53451Element 6270106 or 45683872 spares in the box×11
Trans-Orange
9 pieces
Projectile, Large Figure Weapon, Zamor Sphere / BallTrans-OrangePart 54821Element 4297030×9
Trans-Red
7 pieces
Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki EyeTrans-RedPart 58176Element 6507867 or 61717622 spares in the box×6
Windscreen 8 x 4 x 2 Curved [2 Dual-Fingered Click Hinges]Trans-RedPart 46413Element 6435790 or 4508599×1
Dark Red
3 pieces
Arm Mechanical with Clip [Thin Support]Dark RedPart 53989Element 4626928 or 4541552×2
Large Figure Foot, Barraki KalmahDark RedPart 58230Element 4540567 or 4497957×1
Trans-Yellow
1 piece
Projectile, Large Figure Weapon, Ammo, SquidTrans-YellowPart 575552 spares in the box×1
Minifigures
6 figures
Toa Mahri JallerMinifigure, checked as a whole figure×1
Toa Mahri NuparuMinifigure, checked as a whole figure×1
Barraki EhlekMinifigure, checked as a whole figure×1
Barraki Pridak with Pearl Dark Gray TorsoMinifigure, checked as a whole figure×1
Barraki TakadoxMinifigure, checked as a whole figure×1
Toa MahriMinifigure, 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.