Auction sheet symbols and damage map

The body diagram on an auction sheet is annotated with coded symbols marking every defect. Learn the code and you can picture the car's condition without ever seeing it.

How to read a mark: letter = type of damage, number 1–4 = severity (1 minor → 4 severe). Example: A1 is a small scratch; U3 is a large dent. Always read marks with the overall grade.

How the code works

Inspectors mark defects on a top-down (or side) body diagram. Each mark combines a letter for the defect type with a severity number. Isolated light marks on an older car are normal. Clusters of repair symbols on one corner usually tell a bigger story than a single overall grade.

AScratch
UDent
EDimples
WRepair wave
BDent + scratch
SRust
CCorrosion
PPaint mark
XNeeds replacing
XXAlready replaced
GGlass crack
1–4Severity, 1 = minor
The letter codes a grader marks on the body diagram (a number 1–4 sets severity).

Full symbol reference

SymbolTypeNotes
A1 / A2 / A3 / A4ScratchSmall → large / severe
U1 / U2 / U3 / U4DentSmall → large / severe
E1 / E2 / E3DimplesFew / several / many (often hail)
W1 / W2 / W3Repair mark / waveHardly detectable → clearly visible
BDent with scratchCombined impact damage
SRustCheck severity number and location
CCorrosionMore serious than surface rust
PPaint mark / touch-upCosmetic; common on older cars
XReplacePanel needs replacing
XXReplacedPanel has already been replaced
GGlass crack / chipWindscreen, lights, etc.
YCrackOften plastic / bumper related

Severity numbers (1–4)

When a number appears after the letter, treat it as a scale: 1 is minor and often cosmetic, 2–3 are clearly visible, and 4 is severe. Auction houses differ slightly in thresholds, but the ranking is consistent enough to compare cars.

SeverityWhat it usually means for a buyer
1Cosmetic; often ignore on a high-mileage daily
2Visible; price or negotiate if clustered
3Obvious; budget repair or walk if structural area
4Severe; inspect carefully or pass

The XX trap (and when XX matters)

XX means a panel has already been replaced. On bolt-on panels — doors, bumpers, fenders, bonnets — that is common after parking scrapes and is not by itself structural accident history. Structural repair shows up as an R or RA overall grade, not merely as XX.

Still dig deeper when: XX appears with heavy W marks nearby, multiple adjacent panels are XX, or the overall grade is R/RA. Then you're not looking at a single bumper change.

Reading marks together

  • One A1 on a ten-year-old car is noise.
  • A line of W2/W3 down one side suggests panel work — cross-check grade and price.
  • S/C under the sills or wheel arches on Land Cruisers / Hilux-type trucks deserves a hard look.
  • Interior letter grades aren't on the map — check them separately for taxi/fleet wear.

Learn the whole sheet in our how-to-read guide. Comparing grades? Start with Grade 4 vs 3.5.

See your car's real damage map

Get the original auction sheet, symbols and all, by chassis number.

Verify auction sheet

Frequently asked questions

What does XX mean on an auction sheet?
XX means the panel has already been replaced. On bolt-on panels (doors, bumpers, fenders) this is often routine and does not by itself indicate structural accident repair.
What does W mean on an auction sheet?
W marks a repair mark or wave in the panel — evidence of previous bodywork. W1 is barely detectable; W3 is clearly visible.
What does the number after the letter mean?
It's the severity, from 1 (minor) to 4 (severe). For example A1 is a small scratch and A3 is a large one.
Do auction symbols mean the car is unsafe?
Not automatically. Most marks are cosmetic. Safety and structural concerns are better judged from R/RA grades, heavy repair clusters, and a physical inspection.

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