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.
265 pieces in 122 part and color combinations, plus 1 minifigure.
The official piece count includes the 4 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.
Bracket 1 x 2 - 2 x 2 InvertedBlack ×6Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate 2 x 2Dark Bluish GrayPart 3022Element 4211094×1
Plate Special 2 x 4 with Groove and Two Center Studs (Jumper)Dark Bluish GrayPart 65509Element 6307616×1
Tile Special Round 1 x 1 with Hollow BarDark Bluish GrayPart 20482Element 62717521 spare in the box×1
Red
9 pieces
Plate Special 2 x 2 with Only 2 studsRedPart 33909Element 6219819×2
Technic Axle 4RedPart 3705Element 6129995 or 4265797×1
Technic Pin 1/2 with FrictionRedPart 89678Element 63781201 spare in the box×2
Tile Special Round 1 x 1 with Hollow BarRedPart 20482Element 6215539 or 61888271 spare in the box×4
Yellow
9 pieces
Bracket 1 x 2 - 1 x 2YellowPart 99781Element 6185994×2
Plate 1 x 1YellowPart 3024Element 3024241 spare in the box×4
Plate 1 x 2YellowPart 3023Element 302324×1
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)YellowPart 15573Element 6092583×1
Tile 1 x 2 with GrooveYellowPart 3069bElement 306924×1
Tan
8 pieces
Bracket 1 x 1 - 1 x 1 InvertedTanPart 36840Element 6365720×2
Plate 1 x 4TanPart 3710Element 4113233 or 371005×2
Plate 2 x 2 CornerTanPart 2420Element 4114077 or 242005×2
Technic Axle Pin without Friction Ridges LengthwiseTanPart 3749Element 4666579 or 4186017×2
White
5 pieces
Plate Round 1 x 1 with Open StudWhitePart 85861Element 6168642 or 45476491 spare in the box×2
Technic Axle Pin 3L without Friction Ridges and 2L AxleWhitePart 65249Element 6289797×2
Technic Brick 1 x 1 with Axle HoleWhitePart 73230Element 6345886×1
Trans-Clear
2 pieces
Minifig Neckwear Bracket with 2 Back StudsTrans-ClearPart 18986Element 6166106 or 6100958×2
Dark Purple
1 piece
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)Dark PurplePart 4032aElement 6030534×1
Flat Silver
1 piece
Tool Screwdriver and Spanner / WrenchFlat SilverPart 4006Element 6167576×1
Pearl Titanium
1 piece
Game Controller with F1 Steering Wheel Controls PrintPearl TitaniumPart 53118pr0003Element 6472255×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 77245-1[No Color/Any Color]Part 10115311Element 6581078 or 6535292×1
Minifigures
1 figure
Aston Martin Aramco F1 DriverMinifigure, 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.