Viewing a used car without preparing questions in advance is one of the most expensive mistakes a buyer can make. The right questions, asked in the right order, can uncover problems that no advert will reveal and that no visual inspection will catch. This guide covers what to ask — and what the answers should tell you.
Questions to Ask Before You Travel
There is no point spending two hours and petrol money on a viewing if the car has a fatal flaw you could have identified over the phone or by message. Ask these before you commit to going.
"Can you confirm the exact mileage?" A legitimate seller will give you the figure shown on the odometer. If they are vague, say "approximately," or have to go and check a document rather than the car, treat that as a yellow flag.
"Is there a full service history, and do you have the receipts?" Ask for the specific number of stamps and which garage carried out the most recent service. A seller with genuine history will answer confidently.
"Has the car had any accidents or repairs to bodywork?" This question is deliberately direct. Honest sellers will tell you. Dishonest sellers will hedge. Follow up with: "Has it ever been on an insurance claim?"
"Is there any outstanding finance on the car?" If there is, the finance company technically owns the car and the seller cannot pass clean title to you. An HPI check will confirm this, but asking the seller directly establishes a paper trail.
"Why are you selling?" Not always revealing, but occasionally very revealing. Genuine sellers usually have a simple, coherent answer.
Questions About the Car's History
Once you are at the viewing or in detailed conversation, dig into the specifics.
"When was the cambelt or timing chain last replaced?" On cars with a cambelt (rubber belt drive), failure means catastrophic engine damage. If the service history does not show a belt change in the last 60,000 miles or five years, factor the cost into your offer.
"What is the MOT history?" You can check this yourself via the DVLA website using the registration, but asking the seller lets you compare their answer with the official record. Gaps in the MOT history — periods with no valid MOT — indicate the car may have been off the road with a fault.
"Has it had any warning lights on recently?" Again, direct. Some sellers will admit to a recent ABS or engine management light that has since cleared. This is valuable information.
Questions to Ask at the Viewing
"Can I see it started from cold?" Cold starts reveal smoking, rough idling, rattles, and difficulty starting that warm-up conceals. If a seller insists the engine is "already warm," that is a significant red flag.
"Can I take it for a test drive on a dual carriageway?" Low-speed drives hide problems that only appear under load. You want to reach 60–70 mph and feel how the car behaves under acceleration, braking, and at motorway speed.
"Can I bring my own mechanic?" Honest sellers have no reason to object. If a seller refuses or heavily discourages a pre-purchase inspection, walk away.
Why Honest Sellers Welcome Questions
A seller with nothing to hide will answer every question on this list without hesitation. Questions show you are a serious buyer, not a time-waster. They also protect the seller — if you ask all of this and still buy, you cannot later claim you were not given the opportunity to know.
Sellers who become defensive, dismissive, or who rush you through the viewing are worth treating with caution. The car may be fine, but behaviour like that makes future disputes harder to resolve.
Prepare your questions, ask them calmly, and use CarChecker to analyse the advert before you go. Walking in prepared is the single most effective thing a buyer can do.