You know the moment. You’re standing on someone’s drive, and you start making excuses for a car you haven’t even bought yet.
The tyres are a bit worn, but tyres are easy to replace. The service book’s gone missing, but the seller seems decent enough. That warning light? It’s been on for months, apparently, and it’s never caused any bother.
Any one of those might be fine. Stack them up, though, and a promising car becomes one to think twice about. That’s the trap of buying a used car: the excuses arrive faster than the answers.
So set your standards early, before you’ve seen it. Know what you need, what you can spend and which questions must be answered. Then the viewing has one job, which is finding out whether this car measures up.
Read the Advert Twice
On the first pass, enjoy the bits you like. On the second, hunt for details.
Phrases like “full service history”, “excellent condition” and “recently serviced” are claims, not facts. Follow them up. What records exist? What did the latest service actually include? Are there any faults the photos don’t show?
Get the registration number and current mileage before you travel anywhere. Save the advert, and keep any messages about the car’s condition.
And ask about spare keys. A missing second key probably won’t stop the sale, but replacing one can be a cost you hadn’t planned for.
Do the Background Checks at Home
Reading a history report on your sofa, with a cup of tea, is one thing. Scrolling through it on your phone while the seller hovers beside you is far less relaxing.
Before you arrange a viewing, use Reg Check to look into the vehicle’s history. See what the report covers, including whether it checks for outstanding finance, recorded insurance write-offs and stolen vehicle markers.
Then go through the MOT records. All of them, not just the latest pass.
Say the same suspension component has been flagged as an advisory at several tests. That won’t tell you what needs doing today. It does hand you a good question: has it been fixed, and is there an invoice?
Treat mileage the same way. A reading that drops between tests needs explaining. It might be an input error (so don’t leap to conclusions), but don’t brush past it either.
A clean report helps. It won’t tell you whether the clutch is worn or whether the air con blows cold.
Cost Out the First Few Months
Here’s the bit people skip when buying a used car: what happens after you’ve paid.
Before you haggle, get an insurance quote for the actual car. Check its servicing requirements and when the next service is due. Look into any big scheduled jobs, timing belt replacement especially, where it applies.
Then tyres. Brakes. Anything else getting near the end of its life.
A car that’s £500 cheaper than a similar one isn’t necessarily the cheaper buy once those bills land. And “recent work” only reassures you if there’s proof it happened.
Hold a little budget back, too. Even a carefully chosen used car can need attention.
Give the Viewing a Fair Chance
Daylight, ideally. Dry weather helps as well, because wet panels make scratches and paint differences harder to judge.
Walk round the car before you get drawn into conversation. Look along the bodywork, check the panel gaps, inspect the tyres. Note anything worth a closer look, then ask about it.
Old paintwork isn’t automatically a reason to say no. You’re trying to understand what happened and whether the explanation matches the car’s condition.
Inside, don’t assume anything works. Open the windows. Adjust the mirrors. Test the heating and air conditioning, and try the locks. Look in the boot and under the mats for signs of damp.
It takes a few minutes, tops. Fixing whatever those checks uncover could take a lot longer.
Ask for a Cold Start
If possible, ask the seller not to warm the engine up before you arrive.
Listen as it starts and settles. Watch the dash for warning lights that stay lit. Hear something odd? Ask about it, and get a mechanic’s opinion if you’re not sure.
No need to pretend you’re an expert. “I’d like that checked before I buy” is a perfectly reasonable thing to say about an unexplained noise.
Only check fluid levels when it’s safe and in line with the vehicle handbook. Never take the coolant cap off a hot engine.
Sit Down With the Paperwork
Don’t just glance at it over the bonnet. Go through it properly.
Ask for the original V5C log book and check the vehicle details match. Compare the vehicle identification number with the car itself. Remember that the V5C names the registered keeper; it doesn’t prove ownership.
Next, the service records. Invoices often tell you more than stamps alone, because they show the work carried out. Check the dates, mileages and vehicle details.
Seller says a major job’s been done? Look for the record. Without it, you’re deciding how much uncertainty you’re happy to live with.
Service book missing? An online service history check can search available records from dealerships and authorised dealer networks. Whatever turns up helps you piece together the maintenance history and compare it with any invoices the seller hands over.
Get a Second Pair of Eyes
You don’t have to judge everything yourself.
An independent inspection is worth considering if the car’s expensive, has recorded damage or leaves you unsure about its mechanical condition. Ask what the inspection covers, and read the findings before agreeing to anything.
Think of the history records, the paperwork and the inspection as separate pieces of evidence about the same car. They should tell one story. If they don’t, find out why.
Before Any Money Changes Hands
Agree exactly what you’re buying and what comes with it: keys, documents and any accessories mentioned in the advert.
Get promised repairs in writing. Then check they’ve been done before collection, rather than accepting that they’ll be sorted later.
Get a receipt showing the registration, purchase price, date, and both the buyer’s and seller’s details. Keep it with the advert and your messages.
Arrange insurance, make sure the keeper transfer’s handled and tax the car as required before you drive off. Vehicle tax doesn’t pass from the seller to you.
Still unsure? Step away for a bit. You don’t owe anyone a sale because they spent an afternoon showing you the car, and a long drive doesn’t make unresolved problems any smaller. If there’s one rule worth keeping when buying a used car, it’s this:
It’s much easier to walk away from a viewing than to wish you had.

