What to check when inspecting a used car before buying
Last updated · Cada car guides
Inspect a used car in daylight with the engine cold. Check the body for uneven gaps and repaint, the engine for leaks, smoke and rough idle, the gearbox for slipping or harsh shifts, the suspension over rough road, every electric item and warning light, and have a garage run a diagnostic scan. Then match the chassis and engine numbers to the logbook and NTSA search. A professional inspection costs far less than one hidden repair.
| When | Daylight, cold engine, dry weather if possible |
|---|---|
| Must do | Diagnostic scan, test drive, number match with logbook |
| Who | An independent garage or mechanic you choose, not the seller's |
Body and frame
- Panel gaps even all round; paint colour matches on every panel.
- No overspray on rubber seals or plastic trim.
- Look under the car for rust, bent parts or welds.
- Tyres worn evenly; uneven wear can mean alignment or suspension damage.
Engine and gearbox
- Starts cleanly from cold; no blue or thick white smoke.
- No oil or coolant leaks, no milky oil under the filler cap.
- Automatic gearbox shifts smoothly with no slipping or delay into drive or reverse.
- CVT gearboxes (common on Japanese hatchbacks) should not whine or judder.
Inside
- All warning lights come on with the ignition and go off once the engine runs.
- Air conditioning, windows, locks, lights and infotainment work.
- Wear on the steering wheel, pedals and driver's seat matches the odometer.
On Cada
Sources
General information, not legal, tax or financial advice. Rules and fees change; confirm with the authority named in the sources before you pay.