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HomeCarsDangerous Hidden Defects to Watch Out For When Buying a Used Car

Dangerous Hidden Defects to Watch Out For When Buying a Used Car

Buying a used vehicle may seem like an attractive option given the high prices of new cars. However, there are risks involved, including hidden defects. Here's a guide to help you spot these potentially costly and dangerous defects.

What are hidden defects?

Hidden defects are serious defects that are not apparent during the initial inspection of the vehicle. These problems usually become apparent after purchase and can seriously hamper the normal use of the car or even render it completely unusable.

This phenomenon is far from being marginal. According to estimates, around 30% of vehicles sold between individuals have a hidden defect. This statistic underlines the importance of being vigilant when buying a used car.

Engine problems: the most common hidden defect

Engine-related defects account for about 40% of hidden defects. This category covers a wide range of problems, from injection system malfunctions to cylinder head failures to timing system failures.

The severity of these problems varies greatly. Some may be minor, while others require costly repairs. Unfortunately, many of these defects are difficult to detect during a simple visual inspection.

Transmission problems: a significant risk

About 20% of used vehicles have transmission problems. These defects can manifest themselves in different ways and are often difficult to identify without extensive expertise.

It is crucial to take a test drive before purchasing. Even a short drive can reveal warning signs such as abnormal noises when changing gears or difficulty shifting.

Electrical problems: an invisible threat

Electrical defects also account for about 20% of hidden defects. These problems can affect various components of the vehicle, including the electronic box, lights, injection system or wiring.

As with transmission problems, minor electrical faults are often difficult to detect during a quick inspection. A full electronic diagnostic may be necessary to identify them.

Hidden corrosion: a sneaky danger

About 10% of hidden defect cases involve non-visible corrosion. This problem can affect the bodywork under the paint, but also the chassis and other important mechanical components.

Although less common, hidden corrosion is particularly concerning for vehicles exposed to humid environments. Careful inspection of sensitive areas is essential to detect this type of degradation.

Structural damage: after-effects of serious accidents

It is also crucial to be alert to signs of serious accidents. Some unscrupulous sellers may attempt to hide the damage by repairing only the visible parts of the vehicle, neglecting deeper structural damage.

These superficial repairs can hide serious problems that affect not only the vehicle's performance, but also its safety. A thorough inspection by a professional is the best way to detect these potentially dangerous defects.

How to protect yourself against hidden defects?

Given these risks, it is essential to take certain precautions when purchasing a used vehicle:

  • Choose trusted sellers. If you don't know the seller personally, be careful.
  • Insist on a full inspection by an independent garage before purchase. An honest seller should not object.
  • Do not hesitate to ask for the vehicle's maintenance history and check its consistency.
  • Perform a thorough test drive, paying attention to unusual noises and behaviors.
  • Check the vehicle's history with official bodies to detect any accidents or claims reported.
  • Buying a used car can be a great opportunity, but it's important to stay vigilant. By taking the necessary precautions and being alert to potential signs of hidden defects, you increase your chances of making a safe and satisfying purchase. Remember that the expertise of a professional can be invaluable in this process.

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