That bargain hatchback two hours away? Hold off booking the train. When you’re buying a used car, a surprising amount of the detective work happens before you leave the sofa. The advert, the MOT records and a few pointed questions to the seller can tell you whether the trip’s worth making.
And that matters. Especially when the car looks suspiciously good for the money.
Once you’re actually standing next to it, slow down. A spotless cabin and gleaming paint are nice, but neither tells you whether the timing belt is overdue. Nor will they explain why last year’s MOT recorded more miles than the dashboard shows today.
So here’s the full run-through, from first message to driving off.
First, Before Any Viewing
Get the registration number. Not in the advert? Ask for it. While you’re at it, ask the seller to confirm the current mileage and what service history comes with the car.
A few other questions worth sending now:
- How long have you owned it?
- Why are you selling?
- Any faults or warning lights?
- Has it ever had accident repairs?
- What maintenance has been done lately?
- Do both keys come with it?
Their answers become a yardstick; you’ll hold them up against the car and its paperwork later. Watch for vague phrases too. “Recently serviced” could mean a stamped garage service… or someone swapping the oil on their driveway one Sunday afternoon. Ask exactly what was done.
One more thing: save a copy of the advert. If the description quietly changes later, you’ll want the original.
Run the History Check From Home
Why burn a Saturday on a round trip if the records already throw up questions nobody can answer?
A registration search through Full Car Checks shows you MOT history, tax status, recorded mileage and vehicle details. Worried about outstanding finance, recorded insurance write-offs or stolen markers? Look at what the paid reports include. It’s the cheapest bit of buying a used car, and possibly the most revealing.
Don’t just glance at whether the latest MOT passed. Scroll back through the older ones.
Say tyre wear crops up as an advisory in several tests in a row. Fair question: have the tyres been replaced since? Corrosion mentioned? Find out where it is and what’s been done about it. Some advisories are manageable. Others are a bill waiting to land.
Then the mileage. Readings should make sense in date order. A lower figure could be a simple recording error (they happen), but you’ll want a believable explanation and supporting evidence before going any further.
The Real Price (Hint: It’s Not the One in the Advert)
The asking price is just the opening number.
Get an insurance quote before you fall for the thing. Then factor in servicing, tyres and any major maintenance coming due. Two cars at an identical price can leave you with wildly different bills over the following six months.
Compare like with like, meaning the same engine and specification. Mileage counts, sure. So does condition. A higher-mileage car with consistent servicing may deserve a closer look than a low-mileage one with barely any paperwork.
Unusually cheap? Ask why. Sometimes the seller just wants a quick sale. Sometimes the “saving” vanishes the moment a garage gets the car on the ramp.
Daylight. Dry Weather. If You Can Manage It.
Picture it. You’ve rushed over after work, it’s dark, it’s drizzling, and you’re squinting at the paintwork under a streetlight. Good luck spotting anything. Water disguises marks, and poor light makes paint differences close to invisible.
Walk round the outside before you climb in. Look along the panels for dents and uneven reflections. Check the gaps around the bonnet, doors and boot, and keep an eye out for paint on rubber seals or trim.
Signs of repair aren’t automatically a deal-breaker. Plenty of cars have had minor bodywork. What matters is whether the explanation fits what you can see.
Tyres next. Uneven wear, damaged sidewalls or tread nearing replacement all give you something specific to ask about.
Inside, test everything: windows, air con, parking sensors, central locking, whatever it’s got. It’s oddly easy to spend the whole viewing talking about the engine and never press the buttons you’ll use every single day.
Ask for a Cold Start
If possible, arrange for the engine to be cold when you turn up.
Listen as it starts and settles into idle. Persistent rattles? Knocking? Unusual smoke? Warning lights that won’t go out?
A warm engine isn’t proof that anyone’s hiding a problem. The seller might simply have used the car that morning. But if you specifically asked for a cold start and it’s already running when you arrive, ask about it.
Check the accessible fluid levels when it’s safe to do so, following the handbook. Never open the coolant reservoir while the engine is hot.
You don’t need to diagnose every clunk yourself. That’s what mechanics are for. If something concerns you, get one involved.
Don’t Rush the Test Drive
A quick lap round the block proves the car moves. That’s about it. It won’t show you how it behaves at higher speeds or once it’s properly warmed up.
Confirm you’ve got suitable insurance, then take it on a mix of roads. Switch the radio off for part of the drive and just listen.
Is the steering steady? Are the gear changes smooth? Any hesitation when you accelerate? Knocks over bumps, or vibration when braking?
Then there’s comfort, the part people overlook when buying a used car. Can you see properly at junctions? Is the driving position right? A car can be mechanically sound and still be the wrong one for you.
Back at the seller’s, take another look for warning lights or fresh leaks.
“Full Service History” Has to Prove Itself
Ask to see the records behind the claim.
That might be a stamped service book, invoices or digital records. Check the dates, mileages and work completed. A fat folder of receipts only helps if they relate to the car you’re buying.
If the engine uses a timing belt, find out the replacement interval and whether there’s evidence it’s been changed. Ask about any other scheduled maintenance relevant to that model.
Missing paperwork doesn’t mean the work was never done. It does mean you’ve got less evidence to rely on, and that should affect your decision.
Make Sure the Documents Match the Car
See the original V5C log book and compare its details with the vehicle. Check the vehicle identification number (the VIN) rather than relying solely on the number plate.
The catch? The V5C identifies the registered keeper. It isn’t proof of ownership. So ask who owns the car, and whether the person selling it is entitled to do so.
The official GOV.UK advice on buying a used vehicle sets out the document and identity checks to make.
If something doesn’t match, get it explained before paying. “We’ll sort it out later” isn’t an acceptable answer here.
Before You Take the Keys
Agree what comes with the car, and put any promised work in writing. If the seller says they’ll replace a tyre or fix a warning light, confirm it’s been done before collection.
Get a receipt recording the registration, price, date, and both the buyer’s and seller’s details. Keep it with the advert, your messages and any supporting documents.
Make sure the keeper transfer is handled, and arrange your own insurance and vehicle tax before driving away. The seller’s tax doesn’t transfer to you.
Which leaves the most important rule of buying a used car: give yourself room to say no. You may have travelled miles, paid for checks, even pictured it parked outside your house. None of that makes it the right purchase if big questions are still unanswered.
There’ll be other cars. Better another viewing than a car you already have doubts about.
