Buying a used car: the complete checklist

Buying a used car is one of the biggest purchases you'll ever make. Whether you're looking for a reliable family car, an economical city runaround or a sporty coupé, the choice is huge — and so are the pitfalls. A car can look perfect at first glance while hiding expensive problems you only discover later.

That's why there is no better insurance against a bad purchase than a thorough inspection. In this complete checklist we take you through every step: from budget and Car-Pass to the test drive and the paperwork. Go through it all and you'll decide with peace of mind — whether you buy from a trusted dealer or a private seller.

1. Set your budget and the total cost

The purchase price is only part of the picture. Many buyers look only at the sticker price and forget the extra costs. In Belgium you pay a registration tax when registering the car — the BIV in Flanders and the TMC in Brussels and Wallonia — then annual road tax, and every month insurance, fuel and maintenance.

So set a realistic budget and keep a reserve for unexpected repairs. An older car can look temptingly cheap, but if a timing belt, clutch or gearbox needs replacing soon after, it suddenly becomes far more expensive. A slightly pricier car with a full service history is often the smartest long-term choice.

Don't forget depreciation either. A used car loses value less quickly than a new one, but it still matters to know what your car will be worth in three to five years. Choose a popular and reliable model and you'll also sell it on more easily later.

• Registration tax (BIV or TMC) when first registering in Belgium.
• Annual road tax, depending on engine size and fuel.
• Car insurance: third-party liability is mandatory, comprehensive is optional but advisable for newer cars.
• Maintenance: oil, tyres, brakes and the major service according to the schedule.
• Fuel or charging costs, which vary widely by model and driving style.
• A reserve of a few hundred euros for unexpected repairs.

2. Check the Car-Pass and the history

In Belgium, a Car-Pass is mandatory for every used-car sale. This official document shows the mileage history, so you immediately know whether the odometer has been tampered with. The Car-Pass also states whether the car was involved in an accident and whether there are any outstanding manufacturer recalls.

Odometer fraud is a very real problem on the used market. A car that seems to have low mileage may in reality have covered far more. Always compare the mileage on the dashboard with the Car-Pass and the service book. If the numbers don't match, walk away immediately.

Also ask for the service book and the invoices from previous services. A fully documented history is worth gold: it proves the previous owner had the car serviced regularly. Also pay attention to the number of previous owners — the fewer there are, the more carefully the car has usually been looked after.

• Check the mileage history in the Car-Pass and compare it with the odometer.
• Look for any mention of damage or recalls.
• Ask for the service book and all invoices.
• Check the number of previous owners.
• Beware of long periods without servicing in the history.
• If in doubt about the history, have an independent inspection carried out.

3. Inspect the exterior

Start your inspection with a calm walk around the car. Look at the paint in daylight and watch for colour differences between panels: these often point to a repair after an accident. Rust spots appear first around the wheel arches, the sills and the bottom of the doors.

Also check the tyres and the wheels. Uneven wear can point to poor wheel alignment or a misadjusted suspension. Check that all four tyres are the same brand and type, and that there is still enough tread depth. If you need to replace the tyres, that counts towards your total budget.

Don't forget the lights, windows and mirrors. Test all the lighting — headlights, indicators, brake lights and fog lights — and check for any cracks or chips in the glass. A small chip can later become a large crack, and that is not always covered by insurance.

• Paint: look for colour differences, overspray and scratches.
• Rust: wheel arches, sills, door edges and the bonnet edge.
• Tyres: tread depth and uneven wear.
• Lights: test that all lamps work.
• Windows: check for cracks and stone chips.
• Bodywork: check that all panels line up neatly.

4. Check the interior

Get in and look around critically. Wear on the steering wheel, the pedals and the driver's seat says a lot about how intensively the car has been used. A low mileage on the clock should match the wear in the interior — if it doesn't, something is off.

Then test every function systematically. Switch on the air conditioning and check that it blows cold and hot, open and close all the windows, and test the heated seats, the mirrors and the infotainment. Small defects seem harmless, but repairing an electric window or an air conditioner can quickly cost hundreds of euros.

Finally, pay attention to smells and damp. A musty smell can indicate water damage or a leaking window, while a strong smoke smell is hard to remove and lowers resale value. Also open the boot and check that a spare wheel, jack and tool kit are present.

• Wear: steering wheel, pedals, driver's seat and gear lever.
• Air conditioning: does it blow cold and hot?
• Electronics: windows, mirrors, heated seats and infotainment.
• Smells: musty or smoke odours can reveal problems.
• Damp: check floor mats and upholstery for damp spots.
• Boot: spare wheel, jack and tool kit present?

5. Look under the bonnet

Open the bonnet and take a calm look at the engine. Check the oil level with the dipstick and look at its colour: fresh oil is amber, while dark or sludgy oil points to neglected maintenance. Also check the level and colour of the coolant and the brake fluid.

Watch for leaks, rust and damaged hoses or belts. An abnormally clean engine bay can be a warning sign: an oil leak may have been freshly wiped away. So always ask for the service book and the invoices, and be alert to a burning or sweet smell.

Finally, check the battery and the general condition of the engine. An old or weak battery quickly causes problems in winter. If you have little technical knowledge, have a specialist come along or request an independent purchase inspection. It costs a few dozen euros but can save you thousands.

• Check the oil level and colour with the dipstick.
• Coolant and brake fluid: level and colour.
• Leaks, rust and damaged hoses or belts.
• Battery: age and starting power.
• A suspiciously clean engine can mask a hidden leak.
• If in doubt: have an independent inspection carried out.

6. Take a thorough test drive

The test drive is perhaps the most important part of your check. Start with a cold engine and listen carefully. A rattling or ticking noise on start-up can point to a worn timing chain or an engine problem. Let the engine idle first and check that it runs smoothly.

Then drive on different kinds of roads: in town, on the motorway and over poor surfaces. Test the brakes during a gentle and a hard stop, and watch for vibrations in the steering wheel. Shift through all the gears and feel whether the clutch engages smoothly. On an automatic, changes should be smooth and jerk-free.

During the drive, keep an eye on the dashboard too. Lit warning lights — such as the engine, ABS or airbag light — are a clear signal to investigate further. Finally, switch on the air conditioning and the heating, and listen for strange noises from the suspension while steering.

• Start cold and listen for unusual noises.
• Test the brakes under gentle and hard braking.
• Shift through all gears and feel the clutch.
• Drive over poor surfaces and watch for vibrations.
• Check that no warning lights come on.
• Test the air conditioning, heating and steering.

7. Check the paperwork

If the car passes all the checks, it's time for the paperwork. Ask for the registration certificate, the recent roadworthiness certificate and the Car-Pass, and check that the chassis number on the documents matches the one on the car. A mismatched chassis number is an absolute red flag.

Ask about the warranty. A trusted dealer is legally obliged to provide at least a limited warranty, while a private seller usually offers none. Also know that you have more rights with a professional seller if a hidden defect appears shortly after purchase.

Finally, negotiate on the basis of what you've found. Small defects can be used to discuss the price, and a recent inspection or a full history adds value. Put all agreements — price, warranty and any repairs — in writing before signing the sales contract.

• Ask for the registration certificate, roadworthiness certificate and Car-Pass.
• Compare the chassis number (VIN) with the documents.
• Ask about the remaining warranty.
• Check that all taxes and fines are paid.
• Agree clearly on any repairs.
• Put everything in writing before signing the sales contract.

8. Buy from a dealer or a private seller?

The choice between a trusted dealer and a private seller has a big impact on your security. A dealer is legally obliged to check the car and offer at least a limited warranty. With a private seller you buy the car as-is, without legal warranty, and you carry all the risk yourself.

At a dealer you often pay a little more, but in return the car has usually been checked, cleaned and sometimes already inspected. You also enjoy more protection if a hidden defect appears shortly after purchase. For most buyers, that certainty is worth the price difference.

With a private seller you can negotiate harder and sometimes get a bargain, but the risk is greater. There is no liability for hidden defects, unless you can prove the seller deliberately concealed them. That's why a thorough inspection is even more important for a private purchase.

So choose deliberately. If you want maximum certainty and convenience, a trusted dealer is the best choice. If you're willing to take on more risk in exchange for a lower price, a private seller can be interesting — but always bring someone with technical knowledge along.

• Dealer: legal warranty and more protection.
• Private: cheaper, but all the risk is yours.
• Dealer: the car is usually checked and inspected.
• Private: check extra thoroughly and bring an expert.
• Always ask the dealer about the warranty terms.
• Weigh certainty against price on every purchase.

9. After the purchase: registration and insurance

After the purchase you must register the car with the DIV, the Vehicle Registration Service, before you can drive it. For that you need the registration certificate, the roadworthiness certificate and a valid insurance certificate. Arrange this in time, because you cannot drive without registration and insurance.

Take out your insurance before you pick up the car. Third-party liability insurance is legally mandatory. Also consider comprehensive cover if you buy a relatively expensive or recent car: it also covers damage to your own vehicle in the event of an accident, fire or theft.

Don't forget to declare the car within the legal deadline. In Flanders you pay the BIV, in Brussels and Wallonia the TMC. Also count the annual road tax, which automatically follows your registration and depends on engine size and fuel.

Finally, keep all documents in a safe place: the registration certificate, the roadworthiness certificate, the Car-Pass and the invoice. You'll need them later for resale, a possible claim or a roadside check.

• Register the car with the DIV before driving it.
• Take out third-party insurance before collection.
• Consider comprehensive cover for a recent or expensive car.
• Pay the registration tax (BIV or TMC) on time.
• Count the annual road tax.
• Keep all documents in a safe place.

10. Financing your used car

Not everyone pays for a car in one go. If you finance, you can choose between a classic car loan, a personal loan or leasing. Compare interest rates and the annual percentage rate of charge, the APR, instead of only looking at the monthly payment.

A car loan is often more advantageous than a personal loan because the car serves as collateral. Watch the term, though: the longer you repay, the more interest you ultimately pay. Choose a term that fits your budget, not just your monthly comfort.

Request quotes from several banks and finance companies. Also check whether early repayment is possible without high fees, and whether insurance is compulsorily included in the package. A low rate can look attractive on paper, but hidden fees can make it expensive.

Also think about the residual value. Choose a model that holds its value well, so you're less underwater if you resell. Healthy financing takes the total cost into account, not just the monthly payment.

• Compare the APR, not just the monthly payment.
• A car loan is often cheaper than a personal loan.
• Choose a term that fits your budget.
• Request quotes from several finance providers.
• Check the fees for early repayment.
• Take the model's residual value into account.

11. Avoid the most common mistakes

One of the biggest mistakes is buying impulsively without checking. Don't be swayed by a nice photo or a low price, but always go through the full checklist. An extra hour of checking can save you thousands of euros.

Another common mistake is skipping the test drive. Some buyers buy a car on sight, without having driven it. That's asking for trouble: the test drive is precisely the moment to really judge the brakes, steering and engine.

Ignoring the Car-Pass or an incomplete history is also a classic mistake. If you don't check the mileage, you run the risk of a tampered odometer. And if you don't have an inspection carried out, you only discover defects when it's too late.

Finally, don't let yourself be rushed. A seller who says someone else is coming to look wants to pressure you. Take your time, compare several cars and only decide once you've checked everything.

• Don't buy impulsively without checking.
• Never buy a car without a test drive.
• Don't ignore the Car-Pass and the history.
• Don't skip the independent inspection.
• Don't let the seller rush you.
• Always compare several cars.

Frequently asked questions

Is a Car-Pass mandatory when selling a used car?

Yes, in Belgium the seller must hand over a valid Car-Pass for every used-vehicle sale. Never accept a car without a Car-Pass.

Can I trust a car's mileage?

Only if it matches the Car-Pass and the service book. Discrepancies or a missing history are a red flag.

Why is a used car at a dealer more expensive than from a private seller?

A trusted dealer usually offers a warranty, a checked car and more legal protection. You pay a little more, but you buy more certainty.

Can I have a car inspected before buying?

Yes, and it's recommended. An independent purchase inspection costs little and can reveal expensive problems.

What if a defect appears shortly after purchase?

At a dealer you can rely on the legal warranty and the rules around hidden defects. With a private seller it's harder.

How do I find a reliable used car?

Start on a platform that only allows trusted dealers, like BeAutos. That way you avoid unreliable sellers and buy with more confidence.

This checklist helps you avoid most unpleasant surprises. Take your time, ask questions and don't let yourself be rushed: a good seller has nothing to hide and will gladly give you all the documents and time for a test drive.

Ready to find your next car? On BeAutos you'll find only cars from trusted dealers across Belgium. Browse our selection, filter by your budget and contact the dealer directly.