Buying a used car is a bit like online dating – looks good in the pictures, says all the right things, and then three months later you realise it’s leaking fluids and making a funny smell.
The trick is spotting the red flags before you commit.
We went to a friend who has worked in the car industry for 20+ years to check what he thought. Here’s the ultimate 15-minute pre-purchase checklist. Do this and you’ll stand a much better chance of driving away with a decent car rather than a four-wheeled money pit.
The Ultimate 10ways Used Car Buying Checklist
Before You Even Step Foot Out The Door
- Check the Paper Trail First
- Run the reg or VIN through a history check for accident damage, outstanding finance, stolen status, and mileage discrepancies.
- But don’t trust it 100% – history reports can be incomplete. Think of them like weather forecasts: useful, but don’t bet your house on them.
- Tools: RAC Vehicle Check, AA Vehicle Check, Car Vertical or Car Owl
- Get an Insurance Quote Now, Not Later
- A “cheap” car can become an expensive nightmare if the premium is triple what you expected.
- Bring a Few Small Tools
- Warning lights off doesn’t mean all’s well. Cars hide “pending” faults like a teenager hides dirty plates.
- A Bluetooth OBD2 reader + free app will tell you if codes have been cleared recently and translate tech-speak into English.
- Tool: Carly – easy to use, works with most cars or CarPal A, far cheaper but does a good job.
Exterior & Structural Checks
- Look for Rust in the Right Places
- Surface rust on body panels? Usually fine. Frame or suspension rust? Bank-drainer.
- Pay attention to inner wheel arches, sills, and chassis rails.
- Detect Dodgy Paint Jobs
- Use a torch at head height to spot mismatched paint.
- Look for overspray on door seals and panel edges — a sign of accident repair.
- Check Panel Fit & Gaps
- Uneven gaps or doors that don’t shut smoothly can mean accident damage or poor repairs.
- Tyres Tell the Story
- Look for low tread, cracks, or uneven wear (could mean bad alignment).
- Tyres are pricey now – budget £300-£2000 for a set if they’re shot.
- Don’t forget the spare tyre – it might be balder than your uncle at Christmas. It can also show you signs of issues (e.g. if the wear is uneven).
- Tool: Digital Tyre Tread Depth Gauge – £7 well spent.
- Will It Fit Where You Park?
- Think about your driveway, garage, or street parking space — and your ability to get in/out without drama.
Interior & Comfort
- Test the Driving Position
- Can you get comfy? Does the seat adjust properly? Can you see all the dials without ducking?
- Check Passenger Space
- Sit in the back — would adults survive a long trip without plotting revenge?
- Press Every Button
- Windows, locks, mirrors, lights, heated seats, wipers, infotainment — test it all.
- Climate Control Works Both Ways
- Heat should roast you, AC should chill you. Check all vents for airflow.
Under the Bonnet (No Spanners Required)
- Fluids Don’t Lie
- Oil, coolant, brake fluid — low or dirty fluids can point to neglect.
- Belts & Hoses
- Look for cracks, frays, or bulges.
- Leaks
- Check the ground after the engine’s been running.
Test Drive Like a Pro
- Listen With Windows Down
- Knocks, rattles, squeaks, or grinding noises are all red flags.
- Check Pull-Away & Gears
- Smooth acceleration, no judder, and gear changes that don’t feel like wrestling a gearbox.
- Test the Brakes & Clutch
- Gentle braking, emergency stop, handbrake on a hill.
- The car should track straight without pulling.
- Drive on Different Roads
- Try rough streets, bends, and a stretch of motorway to see how it handles and rides.
- Hill Test
- Does it climb smoothly without excessive gear changes?
- Suspension & Handling
- Soaks up bumps without crashing, corners without feeling like a boat.
- Bring a Mechanic (If You Can)
- £50-£100 for a pre-purchase inspection can save you thousands. A pro with a lift will find things you can’t.
Negotiating & Closing the Deal
- Always Negotiate
- Dealers and private sellers expect it — never pay the first price.
- Ask for Extras
- If they won’t lower the price, push for mats, a service, or other freebies.
- Use Silence to Your Advantage
- State your offer and wait. The awkward pause is their move, not yours.
- Play Dealers Off Against Each Other
- Get multiple quotes and make them compete.
- Use Flaws as Leverage
- Every scratch or scuff is a reason for a discount.
- Be Likeable but Firm
- Charm works, but make it clear you’re serious about your price limit.
- Walk Away if Needed
- The best deals often happen after you leave — and they call you back.
- Get a Warranty
- Going via a dedicated showroom usually means some form of warranty. Other companies may offer one too, but tread carefully — many won’t cover everything.
- Consider Buying a Car Using Game Theory – use this guide
💡 Bottom line: Spend 15-30 minutes checking a car properly and you’ll either confirm you’ve found a gem, or you’ll dodge an overpriced headache. Either way, you win.
And if you’re selling your own car follow this guide