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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.

Berlin

Checking

21027 Berlin

289 pieces in 78 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 Round Curved and Dishes 71 pieces

  • Dish 3 x 3 Inverted [Radar] Dark Bluish Gray Part 43898 Element 4210865 ×2
  • Dish 2 x 2 Inverted [Radar] Light Bluish Gray Part 4740 Element 4211512 ×2
  • Dish 3 x 3 Inverted [Radar] Metallic Silver Part 43898 Element 6051541 or 4296514 ×2
  • Plate Round 1 x 1 with Solid Stud Red Part 6141 Element 614121 1 spare in the box ×4
  • Plate Round 1 x 1 with Solid Stud Tan Part 6141 Element 4161734 or 614105 1 spare in the box ×45
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Tan Part 4032a Element 4140562 or 403205 ×2
  • Dish 2 x 2 Inverted [Radar] Trans-Clear Part 4740 Element 6514246 or 6245306 Also in White ×2
  • Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 1 spare in the box Also in White ×3
  • Plate Round 4 x 4 with 2 x 2 Round Opening Trans-Clear Part 11833 Element 6507890 or 6173802 ×1
  • Dish 2 x 2 Inverted [Radar] White Part 4740 Element 6601845 or 474001 Also in Trans-Clear ×2
  • Plate Round 1 x 1 with Solid Stud White Part 6141 Element 6601919 or 614101 1 spare in the box Also in Trans-Clear ×6

Plates 62 pieces

  • Plate 1 x 10 Black Part 4477 Element 447726 ×5
  • Plate 1 x 2 Black Part 3023 Element 302326 ×13
  • Plate 1 x 4 Black Part 3710 Element 371026 ×8
  • Plate 2 x 10 Black Part 3832 Element 383226 ×2
  • Plate 2 x 2 Black Part 3022 Element 302226 Also in Dark Bluish Gray ×1
  • Plate 2 x 4 Black Part 3020 Element 302026 ×2
  • Plate 2 x 8 Black Part 3034 Element 303426 ×4
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 Also in Black ×4
  • Plate 1 x 1 Light Bluish Gray Part 3024 Element 4211399 1 spare in the box ×2
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×3
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×5
  • Plate 1 x 2 Sand Green Part 3023 Element 4655080 or 4642428 ×1
  • Plate 2 x 10 Tan Part 3832 Element 4249019 or 4248731 ×2
  • Plate 2 x 2 Tan Part 3022 Element 4114084 or 302205 ×4
  • Plate 2 x 2 Corner Tan Part 2420 Element 4114077 or 242005 ×6

Tiles 36 pieces

  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 Also in Dark Bluish Gray ×2
  • Tile 1 x 3 Black Part 63864 Element 4558170 ×1
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×2
  • Tile 1 x 8 with 'Berlin' Print Black Part 4162pr0044 Element 6135307 ×1
  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×2
  • Tile 1 x 1 with Groove Dark Bluish Gray Part 3070b Element 4210848 1 spare in the box ×2
  • Tile 1 x 2 with Groove Dark Bluish Gray Part 3069b Element 4211052 Also in Black ×2
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×7
  • Tile 1 x 4 with Groove Light Bluish Gray Part 2431 Element 4211356 or 2431194 ×8
  • Tile 2 x 2 Corner Light Bluish Gray Part 14719 Element 6065824 ×2
  • Tile 1 x 2 with Groove Sand Green Part 3069b Element 4616578 or 4504803 ×5
  • Tile 1 x 2 with Groove Tan Part 3069b Element 4114026 ×2

Bricks Special 29 pieces

  • Brick Special 1 x 1 with Stud on 1 Side Black Part 87087 Element 4558954 ×10
  • Brick Special 1 x 1 Studs on 4 Sides Dark Bluish Gray Part 4733 Element 4210700 ×1
  • Brick Special 1 x 1 with Headlight Tan Part 4070 Element 4280137 or 4118793 ×4
  • Brick Special 1 x 2 with 2 Studs on 1 Side Tan Part 11211 Element 6024495 ×2
  • Brick Special 1 x 2 with Groove Tan Part 4216 Element 6103001 or 4163617 ×12

Bricks Sloped 20 pieces

  • Brick Sloped 30° 1 x 2 x 2/3 Black Part 85984 Element 4548180 ×7
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Bluish Gray Part 54200 Element 4504378 or 4244373 1 spare in the box ×4
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Red Part 54200 Element 5074621 or 4504379 1 spare in the box ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Sand Green Part 54200 Element 4652205 1 spare in the box ×8

Plates Special 19 pieces

  • Plate Special 2 x 6 x 2/3 with 4 Studs on Side, 1 Support Wall on Bottom Black Part 87609 Element 4653049 ×5
  • Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] Dark Bluish Gray Part 60897 Element 6489464 or 6296892 ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Dark Bluish Gray Part 15573 Element 6092572 ×1
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Dark Bluish Gray Part 87580 Element 6126083 or 4565322 ×2
  • Plate Special Round 2 x 2 with Center Stud (Jumper Plate) Dark Bluish Gray Part 18674 Element 6115080 ×2
  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) Light Bluish Gray Part 3794b ×6
  • Plate Special 4 x 4 with 2 x 2 Opening Light Bluish Gray Part 64799 Element 4612621 ×1

Bricks Curved 11 pieces

  • Brick Curved 4 x 1 Double, No Studs Black Part 93273 Element 4613153 ×10
  • Brick Curved 4 x 1 Double, No Studs Tan Part 93273 Element 4666611 ×1

Tiles Special 7 pieces

  • Tile Special 2 x 2 Inverted Black Part 11203 Element 6013867 ×1
  • Tile Special 1 x 1 with Clip with Rounded Edges Dark Bluish Gray Part 15712 Element 6344022 or 6071226 ×1
  • Tile Special 2 x 2 with Top Pin Light Bluish Gray Part 2460 Element 4211365 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Tan Part 2412b Element 4124456 or 393305 ×4

Bars, Ladders and Fences 6 pieces

  • Bar 6L with Stop Ring Light Bluish Gray Part 63965 Element 6170418 or 6081975 ×1
  • Fence Spindled 1 x 4 x 2 [4 Top Studs] Tan Part 15332 Element 6066118 ×3
  • Antenna 1 x 4 with Flat Top White Part 3957b Element 6550147 or 395701 ×1
  • Bar 6L with Stop Ring White Part 63965 Element 6170419 or 6081986 ×1

Bricks 6 pieces

  • Brick 1 x 4 Tan Part 3010 Element 4113916 or 301005 ×6

Technic Pins 6 pieces

  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×4
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 1 spare in the box ×2

Bricks Round and Cones 5 pieces

  • Brick Round 2 x 2 [Grill] Tan Part 92947 Element 4650647 or 4612717 ×1
  • Dome Hemisphere 4 x 4 Trans-Brown Part 86500 Element 6252259 or 6079676 ×1
  • Brick Round 1 x 1 Open Stud Trans-Clear Part 3062b Element 6514232 or 6223655 ×2
  • Cone 2 x 2 x 2, Open Stud White Part 3942c Element 6044601 or 6022158 ×1

Technic Connectors 5 pieces

  • Technic Pin Connector Round [Slotted] White Part 62462 Element 6550164 or 6173116 ×5

Panels 3 pieces

  • Panel 1 x 2 x 1 [Rounded Corners] with Blue Sky and City Skyline Print Light Bluish Gray Part 4865bpr0003 Element 6204688 or 6135259 ×1
  • Panel 1 x 2 x 1 [Rounded Corners] with Brick Wall and Tunnel Print Light Bluish Gray Part 4865bpr0001 Element 6204677 or 6135249 ×1
  • Panel 1 x 2 x 1 [Rounded Corners] with Sand Green and Dark Green Arrows Print Light Bluish Gray Part 4865bpr0002 Element 6204681 or 6135255 ×1

Minifigs 1 piece

  • Minifig Trophy Statuette Pearl Gold Part 90398 Element 6335932 or 6301337 1 spare in the box ×1

Technic Bricks 1 piece

  • Technic Brick 1 x 2 [1 Pin Hole] Black Part 3700 Element 370026 ×1

Technic Bushes 1 piece

  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 1 spare in the box ×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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