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.
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.
Technic Beam 1 x 13 ThickBlack ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Technic Beam 1 x 2 ThickBlack ×2Dark Bluish Gray ×6Black is darker than Dark Bluish Gray.
Technic Beam 1 x 5 ThickBlack ×6Dark Bluish Gray ×13Black is darker than Dark Bluish Gray.
Technic Beam 1 x 7 Thick with Alternating HolesBlack ×2Dark Bluish Gray ×9Black is darker than Dark Bluish Gray.
Technic Beam 3 x 3 T-Shape ThickBlack ×3Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Technic Axle and Pin Connector PerpendicularYellowPart 6536Element 6261367 or 4173666×2
Technic Beam 1 x 6 ThinYellowPart 32063Element 6170294 or 6063252×2
Technic Gear 14 Tooth Bevel with Axle HoleYellowPart 69762Element 6391161×2
Wire Clip with Axle HoleYellowPart 49283Element 6263069×1
Reddish Brown
7 pieces
Technic Axle 3 with StopReddish BrownPart 24316Element 6135494×4
Technic Axle 5 with StopReddish BrownPart 15462Element 6159763×3
[No Color/Any Color]
2 pieces
Sticker Sheet 1 for Set 42160-1[No Color/Any Color]Part 10101062Element 6415927×1
Sticker Sheet 2 for Set 42160-1[No Color/Any Color]Part 10104827Element 6453063×1
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.