Buying
How to inspect a used car before buying
A practical 30-point walk-around that catches most problems before you hand over your money.
Aug 17, 2026
✔ Free
Advertisement
Start with the paperwork
- Match the VIN on the car, logbook and documents
- Check service history stamps and intervals
- Check the mileage makes sense with the history
- Check the MOT/inspection record and any advisories
The walk-around
- Panel gaps and paint shade between panels (crash repair?)
- Rust at sills, arches and under the car
- Tires: tread, wear pattern and age (DOT date)
- All lights: head, indicator, brake, reverse, fog
- Windows and wipers: cracks, streaks, condition
Under the hood
- Oil level and color — milky means coolant in the oil
- Coolant level and color — oily means trouble
- Look for leaks under the engine
- Belt condition and battery age
- Start cold and listen for rattles or knocks
The test drive
- Clutch, gears and brakes feel
- Steering: straight, no wander or vibration
- Suspension: no clunks over bumps
- Engine: smooth idle, no smoke
- At temperature: check the temperature gauge and fans
Questions about this article
Only if the seller agrees to fix it or discounts enough to cover diagnosis and repair. Never assume it is "just a sensor".
A professional inspection costs a fraction of a hidden repair and can save thousands. For anything more than a cheap beater, it pays for itself.