Buying guide
Red flags when buying a used car
Most bad buys give themselves away if you know what to look for. Here are the listing and inspection red flags — and the ones that mean walk away on the spot.
Checking a specific car?
Paste the listing and get the likely risks, fair price and inspection checklist for that exact vehicle.
Listing red flags
Vague descriptions, no service history mentioned, a price that's suspiciously below market, refusal to let you inspect at their home, pressure to pay a deposit fast, or a seller who won't answer basic questions.
Inspection red flags
Mismatched paint or panel gaps (past crash), fresh underseal hiding rust or leaks, a pre-warmed engine, warning lights, smoke on start-up, and a damp or musty interior (possible flood damage).
Walk-away deal-breakers
Overheating, gearbox slipping, structural rust, evidence of flood or major accident repair, or a VIN that doesn't match the paperwork. No price makes these worth it.
Quick checklist
- ✓Seller answers questions and lets you inspect at their address
- ✓Paint and panel gaps consistent (no hidden repairs)
- ✓Engine cold on arrival; clean start with no lights or smoke
- ✓No musty/damp smell (flood risk)
- ✓VIN matches paperwork; PPSR checked separately
Frequently asked questions
What are the biggest red flags when buying a used car?
A too-good price, no service history, a pre-warmed engine, mismatched paint, warning lights, a musty interior, and any sign of overheating, gearbox slip or structural rust. The last few are walk-away issues.
How do I avoid buying a lemon?
Inspect the car cold in daylight, do a proper test drive, run a PPSR check and get a pre-purchase inspection. Trust the red flags — there's always another car.
Checking a specific car?
Paste the listing and get the likely risks, fair price and inspection checklist for that exact vehicle.
Keep reading
General guidance for Australian buyers — not a PPSR check, mechanical inspection, or guarantee about any specific car. Always inspect the exact vehicle and consider a pre-purchase inspection before buying.