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.
Brick Special 2 x 2 with 2 Pins and Axle HoleDark GrayPart 30000Element 3000027×4
Brick Special 2 x 4 with PinsDark GrayPart 6249Element 4143669 or 4100411×2
Trans-Clear
7 pieces
Brick 1 x 2 without Bottom TubeTrans-ClearPart 3065Element 6514262 or 6244904×4
Brick Sloped 45° 2 x 2Trans-ClearPart 3039Element 6514100 or 6244886×2
Windscreen 2 x 4 x 2Trans-ClearPart 3823Element 6581801 or 6253681×1
Trans-Red
2 pieces
Plate Round 1 x 1 with Solid StudTrans-RedPart 6141Element 6514051 or 6208450×2
Trans-Yellow
2 pieces
Plate Round 1 x 1 with Solid StudTrans-YellowPart 6141Element 6514056 or 6240216×2
Minifigures
2 figures
Blue Torso, Light Grey Legs, Blue CapMinifigure, checked as a whole figure×1
Man, White Top with Large Red Stripe and 2 Blue Stripes, Red Legs, Brown Hair (3626b Head)Minifigure, 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.