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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.

Level Two - Kit 6, Auto Designer

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20205 Level Two - Kit 6, Auto Designer

188 pieces in 81 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.

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Piece checklist

Plates 47 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×4
  • Plate 1 x 4 Light Bluish Gray Part 3710 Element 4211445 ×1
  • Plate 1 x 2 Orange Part 3023 Element 4177932 or 4163009 ×4
  • Plate 2 x 2 Orange Part 3022 Element 4613982 or 4159007 ×2
  • Plate 2 x 4 Orange Part 3020 Element 4158355 or 4122468 ×2
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 ×2
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×8
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×3
  • Plate 1 x 6 White Part 3666 Element 6552107 or 6548265 ×2
  • Plate 1 x 8 White Part 3460 Element 6550141 or 346001 ×1
  • Plate 2 x 16 White Part 4282 Element 6609534 or 4119227 ×1
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×3
  • Plate 2 x 6 White Part 3795 Element 6550146 or 379501 ×3
  • Plate 1 x 1 Yellow Part 3024 Element 302424 ×2
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×1
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×2
  • Plate 2 x 2 Corner Yellow Part 2420 Element 242074 or 242024 ×2
  • Plate 2 x 3 Yellow Part 3021 Element 302124 ×2
  • Plate 2 x 6 Yellow Part 3795 Element 379524 ×1
  • Plate 4 x 6 Yellow Part 3032 Element 303224 ×1

Bricks Sloped 16 pieces

  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Black Part 61409 Element 4541191 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Red Part 54200 Element 4539079 or 4531415 1 spare in the box ×6
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Brown Part 54200 Element 6245263 or 4244368 1 spare in the box ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) White Part 54200 Element 6550179 or 4504369 1 spare in the box ×2
  • Brick Sloped 30° 1 x 2 x 2/3 White Part 85984 Element 6550189 or 4547489 ×4

Plates Special 16 pieces

  • Plate Special 1 x 1 with Clip Vertical [Thick U Clip] Black Part 4085c Element 408526 ×2
  • Plate Special 1 x 2 Side Handle [Free Ends] Black Part 2540 Element 4140588 or 254026 ×1
  • Plate Special 1 x 2 with Clip Horizontal on End Black Part 63868 Element 6336989 or 4535739 ×4
  • Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] Black Part 2444 Element 244426 ×2
  • Plate Special 1 x 2 with Handle on End [Closed Ends] Light Bluish Gray Part 60478 Element 4515369 ×2
  • Plate Special 2 x 2 with Wheels Holder Wide Light Bluish Gray Part 6157 Element 4211569 ×1
  • Bracket 1 x 2 - 2 x 2 Orange Part 44728 Element 6117969 or 6037414 ×1
  • Bracket 1 x 2 - 2 x 2 White Part 44728 Element 6619296 or 6117940 ×2
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) White Part 87580 Element 6550157 or 6126046 ×1

Wheels and Tyres 14 pieces

  • Tyre 17.5 x 6 with Shallow Staggered Treads and Middle Band Black Part 92409 Element 4617848 ×2
  • Tyre 24 x 14 Shallow Tread (Tread Small Hub), Band Around Center of Tread Black Part 89201 Element 6132299 or 4639695 ×4
  • Tyre 30.4 x 14 Offset Tread Black Part 30391 Element 4140670 or 3039126 ×2
  • Wheel 11 x 6 mm with Five Spokes and Silver Print Black Part 50944pr0001 Element 6022424 or 4248538 ×2
  • Wheel 18 x 14 with Pin Hole, Fake Bolts and Shallow Spokes Light Bluish Gray Part 55981 Element 6109684 or 4299119 ×4

Tiles 11 pieces

  • Tile 1 x 2 with Groove Orange Part 3069b Element 4188771 ×1
  • Tile 1 x 4 with Groove Orange Part 2431 Element 4160593 ×1
  • Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×4
  • Tile 2 x 2 with Computer Monitor, Dark Bluish Gray Power Switch Icon Print White Part 3068bpr0137 Element 4289304 ×1
  • Tile 1 x 2 with Groove Yellow Part 3069b Element 306924 ×2
  • Tile 1 x 4 with Groove Yellow Part 2431 Element 243124 ×2

Technic Beams 10 pieces

  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Black Part 60483 Element 6265091 or 6006140 ×4
  • Technic Beam 1 x 2 Thin Black Part 41677 Element 6338428 or 4167726 ×4
  • Technic Beam 2 x 4 L-Shape Thick Black Part 32140 Element 6271825 or 4120017 ×2

Technic Pins 10 pieces

  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 1 spare in the box ×10

Bricks Curved 8 pieces

  • Brick Curved 4 x 1 No Studs [Stud Holder with Asymmetric Ridges] White Part 61678 ×8

Bricks Special 8 pieces

  • Brick Special 1 x 1 with Stud on 1 Side Light Bluish Gray Part 87087 Element 4558953 ×4
  • Brick Special 1 x 2 with Grille Light Bluish Gray Part 2877 Element 4211383 ×2
  • Brick Special 1 x 1 Studs on 4 Sides White Part 4733 Element 4111971 or 473301 ×1
  • Brick Special 1 x 1 with Headlight Yellow Part 4070 Element 407024 ×1

Plates Round Curved and Dishes 7 pieces

  • Plate Round 1 x 1 with Solid Stud Metallic Silver Part 6141 Element 51809301 or 6546105 1 spare in the box ×6
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×1

Bars, Ladders and Fences 4 pieces

  • Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip] Light Bluish Gray Part 48729b Element 6278156 or 4542590 ×4

Bricks 4 pieces

  • Brick 1 x 2 Dark Red Part 3004 Element 4539102 or 4163454 ×3
  • Brick 1 x 1 Yellow Part 3005 Element 300524 ×1

Panels 4 pieces

  • Panel 1 x 2 x 1 [Square Corners] White Part 4865a Element 486501 ×4

Plates Wedged 4 pieces

  • Wedge Plate 4 x 2 Left White Part 41770 Element 6552119 or 4161326 ×1
  • Wedge Plate 4 x 2 Right White Part 41769 Element 6552118 or 4160857 ×1
  • Wedge Plate 6 x 3 Left Yellow Part 54384 Element 6600238 or 4527076 ×1
  • Wedge Plate 6 x 3 Right Yellow Part 54383 Element 6600239 or 4527080 ×1

String, Bands and Reels 4 pieces

  • Rubber Belt Small [15mm ID] [Round Cross Section] White Part 85543 Element 6699001 or 4580665 ×4

Technic Bricks 4 pieces

  • Technic Brick 1 x 4 [3 Pin Holes] Black Part 3701 Element 370126 ×4

Bricks Wedged 3 pieces

  • Brick Wedged, Curved 6 x 2 Left, Inner Ridges White Part 41748 Element 6552117 or 4160124 ×1
  • Brick Wedged, Curved 6 x 2 Right, Inner Ridges White Part 41747 Element 4160101 ×1
  • Brick Wedged, Curved Triple 4 x 6 x 2/3 with 4 Studs White Part 52031 Element 4261565 ×1

Technic Axles 3 pieces

  • Technic Axle 6 Black Part 3706 Element 370626 ×1
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×2

Tiles Special 3 pieces

  • Tile Special 1 x 1 with Clip with Rounded Tips Black Part 12825 Element 6030718 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Black Part 2412b Element 241226 ×1
  • Tile Special 1 x 2 with Handle Light Bluish Gray Part 2432 Element 4211357 ×1

Technic Bushes 2 pieces

  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 1 spare in the box ×2

Transportation - Land 2 pieces

  • Steering Stand 1 x 2 with Black Steering Wheel Light Bluish Gray Part 3829c01 Element 4226995 ×1
  • Engine / Air Scoop 2 x 2 Metallic Silver Part 50943 Element 6051377 or 4579841 ×1

Minifig Accessories 1 piece

  • Tap 1 x 1 without Hole in Spout Light Bluish Gray Part 4599b Element 4211503 ×1

Minifig Headwear 1 piece

  • Helmet, Standard Black Part 2446 Element 6020155 or 4654642 ×1

Minifig Headwear Accessories 1 piece

  • Headwear Accessory Visor For Standard Helmet Black Part 2447 Element 6252803 or 4651398 1 spare in the box ×1

Minifig Shields, Weapons, & Tools 1 piece

  • Tool Screwdriver and Spanner / Wrench Black Part 4006 Element 6034000 or 4569095 ×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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