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What Causes the Discrepancy Between the Car Odometer and Actual Mileage?

1 Answers

SanBentley

07/25/25 3:46pm

Inaccurate odometer readings can be attributed to issues with the odometer sensor, internal faults within the sensor, or the sensor being positioned too far from the induction coil in the transmission. Additionally, the vehicle's onboard computer may require adjustment, which varies by car model. It is advisable to contact a 4S dealership for inspection. Expanded information on car odometers is as follows: 1. Definition: The speedometer indicates the vehicle's speed in km/h (kilometers per hour). The car odometer actually consists of two gauges: a speedometer and an odometer. The car odometer is typically located directly in front of the driver's position. 2. Principle: Traditional speedometers are mechanical, with a typical mechanical odometer connected via a flexible shaft containing a steel cable. The other end of the flexible shaft connects to a gear in the transmission. The rotation of the gear drives the steel cable, which in turn rotates a magnet inside the odometer's housing. The housing is linked to the needle and, via a hairspring, positions the needle at zero. The speed of the magnet's rotation affects the size of the magnetic field lines, disrupting the balance and thereby moving the needle.

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