Diagnostic tester detects mileage manipulation

January 26, 2021 // By Christoph Hammerschmidt
Diagnostic tester detects mileage manipulation
Car workshops, appraisers and leasing operators are the target audience of Bosch’s KTS 250 diagnostic device that reads out all the mileage stored in the vehicle.

It is not always easy to determine the actual mileage of a vehicle beyond doubt, for example when it comes to a used car valuation, a leasing repossession or an appraisal. This is because the speedometer reading of many vehicles can be changed with little technical effort. The number of unreported cases is high: experts assume that the speedometer reading of every third used car sold in Germany has been manipulated.

With a new function of the compact KTS 250 diagnostic tester from Bosch, car workshops or other experts can now read out all the odometer readings that are stored in the various control units in the vehicle. By comparing this with the mileage on the speedometer, it is possible to determine whether the mileage stored there is plausible or whether it deviates from the other values. This can have a direct impact on the residual value of the vehicle in a used car valuation, when a leased vehicle is taken back or when a motor vehicle expert prepares a value appraisal. Insurance companies can include this check in damage assessments.

The mileage of a car is usually not only stored in the speedometer of the instrument cluster in the dashboard, but is also stored in many electronic control units (ECUs) installed in the vehicle. The mileage can even be stored in the seat memory or in the control unit for the electronic parking assistant.

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