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.
Duplo Figure, Early, Aviator Hat Blue, Light Gray Legs, 3 Buttons and Badge PrintBlackPart 74509pr0006×1
Duplo Figure, Early, Fire Helmet White, Black Legs, Fire Jacket with Zipper PrintBlackPart 74365pr0005Element 75509×2
Duplo Figure, Early, Hair Bob Yellow, Light Gray Legs, 3 Buttons and Badge PrintBlackPart 74298pr0038×1
Duplo Figure, Early, Helmet White, Light Gray Legs, Black Top with 3 Buttons and Badge PrintBlackPart 75729pr0013Element 75729×1
Duplo Hose with Yellow Nozzle and Stud HolderBlackPart 6425c03Element 642530×1
Blue
6 pieces
Duplo Car with 1 x 2 Studs with Yellow BaseBluePart 2235c01Element 74825×2
Duplo Car with 2 x 2 Studs and Yellow Base and HubsBluePart 2218c01×1
Duplo Figure, Early, with Short Parted Hair Black, Black Legs, White Shirt, Light Blue Tie PrintBluePart 74511pr0001×1
Duplo HookBluePart 4662Element 466223×1
Duplo Rotor 3 Blade for Small Helicopter Body (Propeller)BluePart 6352Element 4100736 or 4100673×1
Red
6 pieces
Duplo Brick 1 x 2 x 2 with Screwdriver, Hammer and Wrench Tools PrintRedPart 4066pr0168Element 4100609×1
Duplo Car with 1 x 2 Studs with Yellow BaseRedPart 2235c01Element 74562×1
Duplo Car with 2 x 2 Studs and Yellow Base and HubsRedPart 2218c01Element 74446×1
Duplo Figure, Early, Hair Bob Brown, Blue Legs, Blue Overalls, Turned Down Nose PrintRedPart 74298pr0021×1
Duplo Figure, Early, with Flat Cap Red, Yellow Legs, Yellow Recycle Logo, Turned Down Nose PrintRedPart 74432pr0048×1
Duplo Water Container, 2 x 3 Studs on TopRedPart 75084Element 4143364 or 642921×1
Green
2 pieces
Duplo Car with 2 x 2 Studs and Yellow Base and HubsGreenPart 2218c01Element 74669×1
Duplo Container with Recycling Arrows Print and Opening Rear DoorGreenPart 2247c01pr0001×1
Light Green
1 piece
Duplo Figure, Early, Hair Bob Light Gray, Yellow Legs, White Collar and Heart Buttons PrintLight GreenPart 74298pr0011×1
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.