Press release #Automotive Aftermarket

Reading out the mileage stored at different control units using Bosch KTS 250

New function of the diagnostic tester provides information on possible odometer manipulations

  • All of the vehicle’s mileage-related data at a glance
  • Broad range of possible applications for expert reports, leasing return, used vehicle valuations and mobile workshop applications
  • Intuitive operation via modern Android-based user interface
Nico Krespach

Nico Krespach >


Karlsruhe/Plochingen – It is not always easy to doubtlessly identify a vehicle`s actual mileage for the valuation of used vehicles, when leasing vehicles are returned or even for expert reports. At a large number of motor vehicles, the odometers can easily be modified with low technical efforts. The estimated number of undetected cases is rather high: As the German automobile club ADAC informs, police assume that every third used vehicle sold in Germany comes with a manipulated odometer*.

The new function of the compact Bosch KTS 250 diagnostic tester allows automotive businesses and experts to read out any mileage data stored at the vehicle’s different control units. Comparing this data with the mileage shown on the odometer, they can easily determine whether the odometer mileage is plausible or if it differs from the other values. This can have a significant influence on the vehicle’s current value in cases of used vehicle valuations, leasing return or even for expert reports concerning the vehicle value. It allows insurance companies to include this test into their damage assessment or even to ensure compliance with the contractually agreed annual mileage.

Mileage stored at different control units

In most cases, a vehicle’s mileage is not only stored at the odometer on the instrument cluster at the vehicle’s dashboard, but also at a large variety of different electronic control units the vehicle is equipped with. Even the seat memory or the park assist control unit can store information on the vehicle mileage. Throughout the last years, modern vehicles have been equipped with a continuously growing number of control units. As a result, the actual mileage of today’s vehicles is often stored at different sources simultaneously.

Once the Bosch KTS 250 diagnostic tester has been connected to the vehicle by means of the OBD cable, it allows reading out the actual values of the control units and the fault memory. The new KTS 250 mileage readout function creates a list of the individual mileage values stored at the different control units. Afterwards, wireless network connection can be used to print the diagnostic protocol sending it to the workshop network printer or to send it by e-mail – as an attachment and right from KTS 250.

Comprehensive ECU diagnosis via Esitronic diagnostic software

Bosch developed the compact KTS 250 ECU diagnostic tester for mobile applications. Its intuitive and Android-based user interface stands out for being very user-friendly. Equipped with Bosch Esitronic diagnostic software, KTS 250 allows quick ECU diagnosis on almost any type of passenger car on the market. Once the automatic vehicle identification via vehicle identification number (VIN) has been completed, the user is provided with an overview of all control units installed at the vehicle. The tester is equipped with an integrated lithium-ion battery providing the power required for its mobile application. During diagnosis, KTS 250 is supplied with energy the vehicle tested provides via OBD connector.

Adding the new mileage readout function, Bosch further expanded the scope of application of KTS 250 testers. They are now equally suitable for insurance companies and experts using them for damage assessment or vehicle value reports as for leasing companies receiving vehicle returns or car dealers and workshops accepting used vehicles as a trade-in.

* Source: ADAC article published on August 19, 2020 (German only):

Contact person for press inquiries:
Nico Krespach
Phone: +49 721 942-2209

The Automotive Aftermarket division (AA) provides the aftermarket and repair shops worldwide with modern diagnostic and repair-shop equipment and a wide range of spare parts – from new and exchange parts to repair solutions – for passenger cars and commercial vehicles. Its product portfolio includes products made as Bosch original equipment, as well as aftermarket-specific products and services developed and manufactured in-house. About 13,000 associates in more than 150 countries, as well as a global logistics network, ensure that spare parts reach customers quickly and on time. AA supplies testing and repair-shop technology, diagnostic software, service training courses, and information services. In addition, the division is responsible for the “Bosch Service” repair-shop franchise, one of the world’s largest independent chains of repair shops, with some 15,000 workshops, and more than 1,000 “AutoCrew” partners.

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The Bosch Group is a leading global supplier of technology and services. It employs roughly 421,000 associates worldwide (as of December 31, 2022). The company generated sales of 88.2 billion euros in 2022. Its operations are divided into four business sectors: Mobility, Industrial Technology, Consumer Goods, and Energy and Building Technology. As a leading IoT provider, Bosch offers innovative solutions for smart homes, Industry 4.0, and connected mobility. Bosch is pursuing a vision of mobility that is sustainable, safe, and exciting. It uses its expertise in sensor technology, software, and services, as well as its own IoT cloud, to offer its customers connected, cross-domain solutions from a single source. The Bosch Group’s strategic objective is to facilitate connected living with products and solutions that either contain artificial intelligence (AI) or have been developed or manufactured with its help. Bosch improves quality of life worldwide with products and services that are innovative and spark enthusiasm. In short, Bosch creates technology that is “Invented for life.” The Bosch Group comprises Robert Bosch GmbH and its roughly 470 subsidiary and regional companies in over 60 countries. Including sales and service partners, Bosch’s global manufacturing, engineering, and sales network covers nearly every country in the world. With its more than 400 locations worldwide, the Bosch Group has been carbon neutral since the first quarter of 2020. The basis for the company’s future growth is its innovative strength. At 136 locations across the globe, Bosch employs some 85,500 associates in research and development, of which nearly 44,000 are software engineers.

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