
Car odometers can be adjusted. Additional information is as follows: 1. Introduction: The speedometer indicates the vehicle's speed in km/h (kilometers per hour). The car odometer actually consists of two meters: one is the speedometer, and the other is the odometer. The car odometer is generally located directly in front of the driver's position. 2. Principle: Traditional speedometers are mechanical. A typical mechanical odometer is connected to a flexible shaft, which contains a steel cable. The other end of the flexible shaft is connected to a gear in the transmission. The rotation of the gear drives the steel cable to rotate, which in turn drives a magnet inside the odometer housing to rotate. The housing is connected to the pointer, and the pointer is set to zero by a hairspring. The speed of the magnet's rotation causes changes in the magnetic field strength, disrupting the balance and thereby moving the pointer.

As someone who frequently deals with used cars, I've found that tampering with the transmission mileage is technically feasible, but it's absolutely unethical. Some repair shops use OBD devices to rewrite the data in the vehicle's computer, turning a car with hundreds of thousands of kilometers into one with just tens of thousands. But this is illegal, my friend! The 'Consumer Rights Protection Law' clearly states that odometer tampering constitutes fraud, and if caught, you could be liable for three times the car's value. What's even worse is that a car with a tampered odometer can lead to misjudging its condition—for example, a transmission that should have been overhauled might suddenly fail on the road. Last time, I met a guy who bought a car with a tampered odometer, and the transmission completely broke down after just two months, with repair costs amounting to half the price of a new car. I recommend checking maintenance records and getting a third-party inspection to avoid such risks.

A master technician with 10 years of transmission repair experience tells you: Odometer tampering is entirely possible nowadays, it can be done in just half an hour using professional diagnostic equipment. But this is like giving a car cosmetic surgery - while the exterior appears younger, the internal organs remain aged. Transmission wear directly determines lifespan. A car with 200,000 km adjusted to show 50,000 km will still have worn-out components like oil seals and gear sets. The worst part is buyers spending new car money to repair an old vehicle - I've handled several tampered cars whose transmissions were full of metal shavings when opened. My advice: check interior wear when inspecting a car - steering wheel and pedal marks tell a more truthful story than the odometer.

The biggest fear when buying a used car is encountering one with a rolled-back odometer. The transmission mileage can indeed be altered through software, a practice commonly found in rebuilt cars or those involved in major accidents. A friend of mine fell victim to this—the car showed 60,000 kilometers at purchase, but later the original records at a dealership revealed 150,000 kilometers. Rolling back the odometer hides crucial maintenance cycles, causing missed deadlines like transmission fluid changes, which in my friend's case led to seized gear sets. Nowadays, professional inspection services are available in the market; spending a few hundred dollars to check the vehicle's full ECU data can help avoid major pitfalls. Keeping the inspection report also serves as evidence for consumer rights protection.


