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LEGO Missing Piece Checker

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.

Kladno Campus (2015 Version)

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4000018 Kladno Campus (2015 Version)

412 pieces in 65 part and color combinations.

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.

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Piece checklist

Plates 235 pieces

  • Plate 1 x 3 Black Part 3623 Element 362326 Also in Dark Bluish Gray ×1
  • Plate 4 x 10 Black Part 3030 Element 303076 or 303026 ×2
  • Plate 6 x 12 Black Part 3028 Element 302826 ×3
  • Plate 6 x 8 Black Part 3036 Element 303676 or 303626 ×3
  • Plate 1 x 1 Blue Part 3024 Element 302423 ×2
  • Plate 1 x 1 Dark Bluish Gray Part 3024 Element 4210719 ×11
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×9
  • Plate 1 x 3 Dark Bluish Gray Part 3623 Element 4211133 Also in Black ×8
  • Plate 1 x 4 Dark Bluish Gray Part 3710 Element 4211001 ×2
  • Plate 2 x 2 Corner Dark Bluish Gray Part 2420 Element 4210635 ×4
  • Plate 2 x 3 Dark Bluish Gray Part 3021 Element 4211043 ×9
  • Plate 1 x 1 Green Part 3024 Element 302428 ×4
  • Plate 1 x 2 Green Part 3023 Element 302328 ×12
  • Plate 1 x 3 Green Part 3623 Element 4107758 or 362328 ×4
  • Plate 2 x 3 Green Part 3021 Element 302128 ×3
  • Plate 1 x 1 Light Bluish Gray Part 3024 Element 4211399 ×25
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×14
  • Plate 1 x 3 Light Bluish Gray Part 3623 Element 4211429 or 3623194 ×5
  • Plate 1 x 4 Light Bluish Gray Part 3710 Element 4211445 ×4
  • Plate 2 x 3 Light Bluish Gray Part 3021 Element 4211396 ×14
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×14
  • Plate 1 x 1 Red Part 3024 Element 302421 ×11
  • Plate 2 x 4 Reddish Brown Part 3020 Element 4211186 ×8
  • Plate 2 x 6 Tan Part 3795 Element 4113993 or 379505 ×3
  • Plate 1 x 1 Trans-Clear Part 3024 Element 6513962 or 6252041 ×44
  • Plate 1 x 2 Trans-Clear Part 3023 Element 6514001 or 6240204 ×9
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×3
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×2
  • Plate 1 x 1 Yellow Part 3024 Element 302424 ×2

Tiles 94 pieces

  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 Also in Dark Bluish Gray ×4
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 Also in Dark Bluish Gray ×6
  • Tile 1 x 8 with 'Kladno Campus 2015' Print Black Part 4162pr0999 Element 6121189 ×1
  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×5
  • Tile 1 x 1 with Groove Dark Bluish Gray Part 3070b Element 4210848 ×4
  • Tile 1 x 2 with Groove Dark Bluish Gray Part 3069b Element 4211052 Also in Black ×3
  • Tile 1 x 3 Dark Bluish Gray Part 63864 Element 4568734 ×4
  • Tile 1 x 4 with Groove Dark Bluish Gray Part 2431 Element 4211053 Also in Black ×4
  • Tile 2 x 4 with Groove Dark Bluish Gray Part 87079 Element 4560184 ×2
  • Tile 1 x 1 with Groove Dark Red Part 3070b Element 4550169 or 4187196 ×1
  • Tile 1 x 1 with Groove Light Bluish Gray Part 3070b Element 4211415 ×16
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×12
  • Tile 1 x 3 Light Bluish Gray Part 63864 Element 4558169 ×6
  • Tile 1 x 4 with Groove Light Bluish Gray Part 2431 Element 4211356 or 2431194 ×5
  • Tile 2 x 4 with Groove Light Bluish Gray Part 87079 Element 4560183 ×3
  • Tile 1 x 1 with Groove Red Part 3070b Element 307021 ×8
  • Tile 1 x 2 with Groove Red Part 3069b Element 4178178 or 306921 ×6
  • Tile 1 x 1 with Groove Tan Part 3070b Element 4125253 ×1
  • Tile 1 x 1 with Groove Trans-Light Blue Part 3070b Element 6514261 or 6254256 ×1
  • Tile 1 x 2 with Groove Yellow Part 3069b Element 306924 ×2

Plants & Trees 24 pieces

  • Plant, Flower, Plate Round 1 x 1 with 4 Petals Bright Green Part 33291 Element 6170300 or 4619599 ×24

Plates Special 21 pieces

  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Dark Bluish Gray Part 15573 Element 6092572 ×6
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Green Part 15573 Element 6092586 ×3
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Light Bluish Gray Part 15573 Element 6066097 or 4211451 ×11
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Red Part 15573 Element 6092565 ×1

Plates Round Curved and Dishes 12 pieces

  • Plate Round 1 x 1 with Solid Stud Reddish Brown Part 6141 Element 4216581 ×12

Bricks 10 pieces

  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×1
  • Brick 2 x 3 Dark Bluish Gray Part 3002 Element 4211105 ×2
  • Brick 1 x 1 Light Bluish Gray Part 3005 Element 4211389 ×3
  • Brick 2 x 3 Light Bluish Gray Part 3002 Element 4211386 ×2
  • Brick 2 x 4 Yellow Part 3001 Element 300124 ×2

Hinges, Arms and Turntables 10 pieces

  • Hinge Plate 1 x 2 Locking with 1 Finger On End, without Groove Light Bluish Gray Part 44301b Element 6266231 ×9
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Light Bluish Gray Part 73983 Element 6102769 or 4219256 ×1

Bricks Round and Cones 4 pieces

  • Cone 1 x 1 [Top Groove] Green Part 59900 Element 4529239 ×4

Bricks Sloped 1 piece

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Yellow Part 54200 Element 4504381 or 4283095 ×1

Bricks Special 1 piece

  • Brick Special 1 x 1 with Headlight Dark Bluish Gray Part 4070 Element 4211044 ×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.

Request a replacement from LEGO

Buy the piece

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.

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