The problem is that there are many scammers on the market who know perfectly well how to conceal a car’s technical defects. How can you avoid being scammed? And what should you pay particular attention to?

The most common seller tricks—how do they scam you?

The used-car market is a real jungle. There are honest sellers, but also those who will take every opportunity to sell you a car that should have gone to a repair shop or, as also often happens, straight to the scrapyard.

Rolled-back odometer—a classic

When you hear that a 15-year-old diesel from Germany has 120,000 kilometres on the clock, a red warning light should already come on. Odometer rollback is still one of the most common practices among dishonest sellers. Company cars that cover 200,000–300,000 kilometres in two years later arrive in Poland and suddenly become “younger” by half.

Why is this a problem? Because mileage affects the wear of the engine, gearbox, suspension and even the car’s interior. If you buy a car that has actually travelled twice as far as the odometer shows, you can expect a flood of repairs.

How can you check it?

  • VIN history—remember that checking the VIN is absolutely essential, because it will reveal the car’s actual mileage and service history.
  • Interior condition—worn seats, a used steering wheel and worn buttons: if they look worse than the odometer suggests, something is wrong.
  • Mechanical condition—a mechanic can assess whether the wear of individual components matches the stated mileage.
  • Hidden defects—how do sellers conceal problems?

Dishonest sellers are masters of camouflage. They can conceal rust, patch up an engine well enough for it to last a few weeks, or even fit used tyres with good tread that will start cracking after a few thousand kilometres.

The most common tricks include:

  • New paint on old panels—traces of rust are filled and covered with a fresh layer of paint that may start peeling after a few months.
  • Makeshift repairs—sellers often use cheaper replacement parts or reconditioned components that look good but have a limited service life.
  • A temporary “cure” for the engine—adding special products to the oil and fuel that briefly muffle bearing knocking or exhaust smoke.

How can you protect yourself?

  • You can check the paint with a paint-coating thickness gauge.
  • It is best to have the engine and suspension inspected at a repair shop before buying.
  • It is also a good idea to inspect the car on a lift to see the condition of the underbody.

“Accident-free,” but not really—how can you avoid the trap?

The seller swears that the car has never been in an accident? Sometimes they even have technical inspection documents that “confirm” its history. But can you really be sure?

The truth is that many cars that appear to be accident-free have undergone major body repairs. You may not notice that half the car consists of new sheet metal, while damage remains in the structure that may affect safety.

What is worth checking?

  • Do the body panels fit together perfectly? Uneven gaps between the bonnet and the wings are a sign that something has been repaired.
  • Is the paint colour uniform? If the shade differs between various body panels, the car was probably repainted.
  • Are the airbags in place? In some cars that have been in accidents, the airbags are simply... sewn into the old upholstery.

How should you check a car before buying?

Even if the car looks great and the seller seems trustworthy, never skip a thorough inspection. You can save yourself a lot of trouble.

VIN—why is it the key to the truth about a car?

The VIN is something like a car’s DNA. It is a unique code assigned to every vehicle, containing all the key information about its history.

Where can you find the VIN?

  • On the windscreen frame,
  • On the driver’s door pillar,
  • In the vehicle documents.

Workshop diagnostics—why is it always worth having them done?

Regardless of how good the car looks, before signing the contract, take it for a comprehensive inspection at a repair shop. It costs a few hundred złoty, but it can save you from spending thousands on subsequent repairs.

The mechanic will check:

  • The engine, gearbox and suspension,
  • The condition of the braking system,
  • Any leaks and corrosion on the underbody.

How can you buy more cheaply without being scammed?

You have found a car that meets your expectations, checked it from A to Z, and it appears to be in good condition. But before signing the contract, it is still worth negotiating the price. After all, few people sell a car without leaving themselves some room for negotiation.

But how do you go about it without the seller taking you for an amateur who does not know what they want? There are ways.

Always find arguments for lowering the price

Negotiations are not a wish list. If you want the seller to lower the price, you need good reasons. “Could you lower the price a little?” will not work. But if you say:

  1. “The rims are scratched and the tyres need replacing—that is about PLN 1,500 in immediate costs. Could we reduce the price by that amount?” or
  2. “The paint looked perfect in the photos, but I can see chips and traces of corrosion on the wheel arches. Painting this will cost at least PLN 2,000. Can we take that into account in the price?”

… you have a much better chance of success.

Do not be afraid to play for time

If the seller is difficult and does not want to lower the price, find out how much they care about making the sale. You could say, for example: “I like this car, but I have one more vehicle to look at. If I do not decide by tomorrow, I will let you know.”

Many sellers prefer not to risk losing a customer and will offer a better price themselves in such a situation.

Do not show too much enthusiasm

If, during the inspection, you immediately start saying that the car is great, that you like it very much and that it is exactly what you have been looking for, the seller will feel that they have you cornered. Negotiations may then be more difficult because they will assume that you will buy it anyway.

It is best to approach the conversation calmly. You can even complain a little: “The engine runs nicely, but the plastic on the dashboard is badly scratched. And those doors make a strange noise when closing. I still need to think about it.”

This gives you an advantage, because the seller will feel they need to convince you—and the best way to convince a buyer is to lower the price.