Press release #Automotive Aftermarket

New compact Bosch KTS 250 tester for mobile and quick ECU diagnoses

With intuitive user interface and easy handling

  • Newly designed entry-level device for straightforward ECU diagnoses
  • Modern Android-based user interface for high user friendliness
  • Future-proof thanks to integrated DoIP ethernet interface
Nico Krespach

Nico Krespach >


Karlsruhe/Plochingen (Germany) – Bosch launches a new diagnostic tester onto the market which has specifically been developed for mobile and straightforward workshop use. The compact and robust Bosch KTS 250 is perfectly suitable for small automotive workshops, for use at workshops’ vehicle reception or as an additional device for larger workshops. The tester stands out for its high user friendliness. A new, intuitive and Android-based user interface supports its operator. Equipped with Bosch Esitronic workshop software, KTS 250 allows economical ECU diagnoses on almost any type of passenger car on the market. So far, the software covers some 150 car makes and is thus equally comprehensive and complete as Esitronic 2.0 installed on larger Bosch diagnostic testers. Thanks to its powerful processor programs are loaded quickly and rapid diagnoses are ensured. Bosch first presents the new KTS 250 diagnostic tester at this year’s Automechanika fair in Frankfurt on the Main (Germany).

Automatic vehicle identification via VIN code

Even the vehicle identification is performed automatically via VIN code and the most comprehensive VIN database on the market so far. In almost no time, the compact seven-inch touch screen provides the user with an overview of all control units installed at the vehicle. Thanks to a resolution of 1024 x 600 pixels, texts and graphics are displayed clearly and easily readable. Once the KTS 250 tester has been connected to the vehicle by means of the OBD cable included in the scope of delivery, it allows reading out the actual values of the control units and the fault memory. Vehicle-specific OBD adapters are available for older vehicles. By means of the printing function, the results can be printed out at a printer connected to the workshop network. For its power supply, the tester is equipped with an integrated lithium-ion battery. During diagnoses, the tester is supplied by the vehicle tested via the OBD connector.

DoIP ethernet interface already integrated

With the new tester, workshops are already very well equipped for the future. KTS 250 supports DoIP (Diagnostics over Internet Protocol) – the new, ethernet-based diagnostic interface. It allows much higher data transfer rates. Since the modern interface has already been used for control unit flashing for quite a while, an increasing number of vehicle manufacturers relies on Ethernet for diagnostic purposes as well. In addition, KTS 250 also allows parallel communication with different control units on different communication channels.

Data updating is made online via WLAN connection and without any additional DVD drive or connection to a workshop computer. With the same easiness, software licensing is also carried out online. Once the user name and the password have been entered, the new KTS 250 diagnostic tester can be used right away.

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. 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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