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.
Plate Special 1 x 4 with Wheels HolderLight GrayPart 2926Element 292602×2
Light Green
2 pieces
Belville, Sleeping Bag / Child Pouch with Dots PrintLight GreenPart 71189pr0001Element 70936×2
Light Violet
2 pieces
Brick Special 24 x 24 without 12 x 12 Quarter CircleLight VioletPart 6161Element 4189132 or 616139×2
Dark Gray
1 piece
Animal, Cat, Standing [Plain]Dark GrayPart 6175Element 4189011 or 617527×1
Minifigures
3 figures
Belville Horse Rider, Light Violet Top, Black HelmetMinifigure, checked as a whole figure×1
Belville Horse Rider, Dark Pink Top, Black HelmetMinifigure, checked as a whole figure×1
Belville Horse Rider, Pink Top, Black HelmetMinifigure, 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.