Free tool

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.

Mini Robot

Checking

5616 Mini Robot

19 pieces in 13 part and color combinations, plus 1 minifigure.

The official piece count includes the 5 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.

Show

Piece checklist

White 9 pieces

  • Arm Mechanical with 2 Clips [Battle Droid] White Part 30377 Element 6321345 or 4260649 1 spare in the box ×2
  • Box 2 x 2 x 2 Door with Slot White Part 4346 Element 434601 ×1
  • Box 2 x 2 x 2 [Hollow Studs] White Part 4345b Element 434501 ×1
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) White Part 3794a ×3
  • Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm] White Part 4623 Element 462301 ×2

Dark Bluish Gray 3 pieces

  • Equipment Binoculars Dark Bluish Gray Part 30162 Element 4587887 or 4211051 ×1
  • Plate Special 1 x 4 Offset with Bar Holes Dark Bluish Gray Part 4590 Element 6302647 or 6086709 ×1
  • Tool Pickaxe Dark Bluish Gray Part 3841 Element 4211007 ×1

Trans-Neon Green 3 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Neon Green Part 6141 Element 6240223 or 3005749 1 spare in the box ×2
  • Rock 1 x 1 Jewel / Gem 24 Facet Trans-Neon Green Part 30153 Element 6247790 or 4114505 ×1

Black 2 pieces

  • Equipment Metal Detector Black Part 4479 Element 4501975 or 4212278 ×1
  • Equipment Weapon, Loudhailer / Speaker / Blaster / Space Gun Black Part 4349 Element 434926 ×1

Orange 2 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Orange Part 54200 Element 4504371 or 4248195 1 spare in the box ×2

Minifigures 1 figure

  • Mars Astronaut, Stubble, Printed Hair Minifigure, 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.

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.