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.
987 pieces in 269 part and color combinations, plus 5 minifigures.
The official piece count includes the 19 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.
Cone 1 x 1 [Top Groove]Black ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 2 x 3Black ×4Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Flag 2 x 2 Trapezoid with Flared Area between ClipsVibrant YellowPart 80324Element 6527224×4
Large Buildable Figures
4 pieces
Large Figure Face 4 x 5 x 1 2/3 with Facial Sculpture with Distorted Skull PrintBlackPart 3524pr0006Element 6523365×1
Large Figure Weapon Sword, Blade with Bar, Single EdgeOpal Trans-Dark BluePart 65184Element 6514353 or 6489478×1
Cyber Brain with White PatternTrans-Dark PinkPart 110049pat0001Element 6512375×1
Large Figure Shoulder Cover, Armor, Round, Smooth with Bar with Tiger Face, Bionic Eyes PrintWhitePart 1686pr0001Element 6523364×1
Technic Panels
4 pieces
Technic Panel Fairing 2 x 3 x 1 #3 Angled 157.5°BlackPart 2457Element 6510092 or 6408176×4
Transportation - Land
4 pieces
Wheel Arch, Mudguard 3 x 4 with 2 x 2 PlateDark Bluish GrayPart 28326Element 6178912×1
Spoiler 2 x 4 with Handle [Plain]RedPart 98834Element 6469843 or 6133550×1
Vehicle Body, Wheel Arch / Mudguard 3 x 4 x 1 2/3 Low Profile, Curved FrontWhitePart 98835Element 6218531 or 6003333×2
Technic Gears
3 pieces
Technic Driving Ring Extension, 8 RidgesBlackPart 35186Element 6291069×3
Energy Effects
2 pieces
Cloud / Dust with 4 x 8 with BarsTrans-Dark BluePart 6958Element 6530956×2
Panels
2 pieces
Panel 1 x 2 x 1 [Rounded Corners]BlackPart 4865bElement 6146220×2
Animals / Creatures
1 piece
Creature, Mini Ghost / Bell-Shaped Flower with Black Eyes Print (Z-Blob)Trans-Bright GreenPart 6017pr0001Element 6523330×1
Stickers
1 piece
Sticker Sheet for Set 71497-1[No Color/Any Color]Part 10110960Element 6523384×1
Tools
1 piece
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Windows and Doors
1 piece
Window 1 x 2 x 3 Flat FrontWhitePart 60593Element 6468341 or 4536521×1
Windscreens and Fuselage
1 piece
Windscreen 2 x 4 Half DomeTrans-Dark PinkPart 81911Element 6559006 or 6545481×1
Minifigures
5 figures
Cooper, Red CapMinifigure, checked as a whole figure×1
Cyberling, White HelmetMinifigure, checked as a whole figure×2
ZeroMinifigure, checked as a whole figure×1
DreamerMinifigure, 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.