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.
240 pieces in 78 part and color combinations, plus 1 minifigure.
LEGO counts 246 pieces. This inventory comes from a separate parts catalog and lists 245, including the 5 parts inside the minifigures; the two do not always count the same elements, so their totals differ. 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.
LEGO's request form asks for the set number (8079) and each piece's element ID, both listed above.
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Clear every mark for this set?
Piece checklist
Black
94 pieces
Animal / Creature Body Part, Tail / Neck, Base Section with Black PinBlackPart 40395Element 4506671 or 4162163×1
Arm Mechanical with Clip [Thin Support]BlackPart 53989Element 4623154 or 4294996×8
Bracket 5 x 2 x 2 1/3 with Holes, Smooth BottomBlackPart 6087Element 4100423 or 608726×1
Brick Curved 4 x 1 No Studs [Stud Holder with Asymmetric Ridges]BlackPart 61678×4
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)BlackPart 54200Element 4504382 or 42871591 spare in the box×2
Brick Sloped 45° 2 x 1 Double / Inverted with Bottom Stud HolderBlackPart 3049dElement 4220539×2
Brick Sloped 45° 2 x 1 Triple with Ovoid Bottom PinBlackPart 3048cElement 304826×6
Technic Pin 1/2 with 2L Bar ExtensionLight Bluish GrayPart 61184Element 6347715 or 4520320×2
Technic Pin 1/2 without Friction RidgesLight Bluish GrayPart 4274Element 4274194 or 42114831 spare in the box×4
Tile 2 x 4 with GrooveLight Bluish GrayPart 87079Element 4560183×1
Trans-Bright Green
2 pieces
Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki EyeTrans-Bright GreenPart 58176Element 6507869 or 6171864×2
Trans-Clear
2 pieces
Plate Round 1 x 1 with Solid StudTrans-ClearPart 6141Element 6514052 or 62400301 spare in the box×2
Trans-Red
2 pieces
Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki EyeTrans-RedPart 58176Element 6507867 or 6171762×2
Blue
1 piece
Brick Special 2 x 2 with 2 Pins and Axle HoleBluePart 30000Element 3000023×1
Trans-Yellow
1 piece
Ring with Centre Triangle with Gold Bands and Turtle Print [Atlantis Key]Trans-YellowPart 87748pr0005Element 4570662×1
Yellow
1 piece
Plate Special 4 x 4 with 2 x 2 OpeningYellowPart 64799Element 4549896×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 8079-1[No Color/Any Color]Part 89146Element 4570551×1
Minifigures
1 figure
Lance Spears, Trans-Bright Green VisorMinifigure, 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.
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.