How to spot an accident-damaged used car
Last updated: 19 June 2026
A practical checklist to detect signs of a previous accident, body repair or repaint before you buy a used car — panel gaps, paint, welds, documents and more.
Why it matters
A car that has been in an accident is not always a bad buy — but undisclosed structural or body damage can hide rust, electrical faults, or weakened crash protection, and it directly affects resale value.
Most signs are visible if you know where to look. Inspect the car in daylight, when it is clean and dry, and take your time.
1. Check panel gaps and alignment
Walk around the car and look at the gaps between panels (doors, hood, trunk, fenders). They should be even and symmetric on both sides. Uneven or wide gaps often mean a panel was removed, replaced, or refitted after a repair.
Open and close every door, the hood and the trunk. They should align cleanly and shut without forcing.
2. Look for paint and color mismatches
Crouch at the front and rear corners and look down the side of the car. A slight difference in shade, gloss or reflection between two adjacent panels suggests a repaint.
Check the same color on the door jambs and under the fuel flap — these areas are rarely repainted, so they reveal the car's true original shade.
3. Find overspray and texture differences
Look closely at rubber seals, plastic trims, headlights and window edges for paint mist (overspray) — a clear sign of a respray.
Run your hand over the surface. A rough, 'orange-peel' texture or visible sanding marks under the paint can indicate body filler and refinishing.
4. Inspect bolts, welds and the engine bay
Factory bolts (on the hood, doors, fenders) are usually untouched. Scratched or repainted bolt heads suggest a panel was removed.
In the engine bay and around the boot, factory spot welds are smooth and regular. Lumpy, ground-down or sealant-covered welds point to structural repair.
5. Read the documents and history
Ask for the service book, invoices and registration. Cross-check the VIN on the documents with the VIN on the car (windshield, door pillar, engine bay).
A vehicle-history report can reveal declared accidents, insurance write-offs, mileage inconsistencies and previous owners.
6. When in doubt, get a second opinion
If several signs add up, ask the seller directly and use the points above as negotiation arguments — or walk away.
Tools like CarGuard AI give you a fast, photo-based pre-screening to flag suspicious areas before you commit, but they do not replace a professional inspection for a final decision.