Mobility Solutions

The new C60 series Bosch builds the world's smallest starter for passenger cars

  • For gasoline engines with up to two liters of engine displacement
  • Developed in the company's global network
  • Production to start in September 2013
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  • September 10, 2013
  • Mobility Solutions
  • Press releases

press release

With its compact size and its outer diameter of just 60 millimeters, the Bosch C60 is the world's smallest starter for passenger cars. It is available in three versions, which range from 0.8 to 1.2 kilowatts in power. It is designed mainly for gasoline engines with an engine displacement of up to two liters, but can also be used in small diesel engines with reduced drag torque. Weighing just two kilograms, the C60 is about 25 percent lighter than currently available products, making it a global benchmark. The C60 series, which can also be used with start-stop applications, makes starting a car comfortable and quiet.

Growing global market share of small gasoline engines
The C60 is designed for small gasoline engines with an engine displacement of up to two liters. This segment currently accounts for some 70 percent of the global market, and is continuing to grow. The growing share of low-cost compact cars in the world's emerging markets is one of the drivers of this development. Thanks to its lightweight and compact design, the C60 is particularly well suited to this segment.

Less is more
By combining the planetary gearbox with the overrunning clutch, power requirements have been reduced and the relay resized accordingly. As a result, the voltage dip associated with starting the car has been minimized. Moreover, thanks to the armature's improved electrical design, copper content has been reduced by one-third, and the starter's compact dimensioning also means a similar reduction in the amount of aluminum and steel required. The C60's design makes it suitable for conventional and start-stop applications in a wide range of engine platforms worldwide. This saves automakers calibration work and enables standardized production in the global Bosch manufacturing network.

A global set-up from the very start
Bosch engineers in Germany, China, Brazil, and India worked together to develop the C60 in the company's global network. Production is scheduled to begin in September 2013 in China, where Bosch will supply the C60 to a major local customer. Shortly after, the compact and particularly efficient starter will also be produced in Germany, Brazil, and India.

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At the 65th International Motor Show in Frankfurt, Bosch is showcasing technical solutions for connected mobility. A variety of innovations are helping to make road traffic cleaner and more efficient, as well as safer and more comfortable. Bosch is exhibiting its highlights at booth A04 in hall 8.

Mobility Solutions is the largest Bosch Group business sector. In 2015, its sales came to 41.7 billion euros, or 59 percent of total group sales. This makes the Bosch Group one of the leading automotive suppliers. The Mobility Solutions business sector combines the group’s expertise in three mobility domains – automation, electrification, and connectivity – and offers its customers integrated mobility solutions. Its main areas of activity are injection technology and powertrain peripherals for internal-combustion engines, diverse solutions for powertrain electrification, vehicle safety systems, driver-assistance and automated functions, technology for user-friendly infotainment as well as vehicle-to-vehicle and vehicle-to-infrastructure communication, repair-shop concepts, and technology and services for the automotive aftermarket. Bosch is synonymous with important automotive innovations, such as electronic engine management, the ESP anti-skid system, and common-rail diesel technology.

The Bosch Group is a leading global supplier of technology and services. It employs roughly 375,000 associates worldwide (as of December 31, 2015). The company generated sales of 70.6 billion euros in 2015. Its operations are divided into four business sectors: Mobility Solutions, Industrial Technology, Consumer Goods, and Energy and Building Technology. The Bosch Group comprises Robert Bosch GmbH and its roughly 440 subsidiaries and regional companies in some 60 countries. Including sales and service partners, Bosch’s global manufacturing and sales network covers some 150 countries. The basis for the company’s future growth is its innovative strength. Bosch employs 55,800 associates in research and development at 118 locations across the globe. The Bosch Group’s strategic objective is to deliver innovations for a connected life. 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.”

Further information is available online at and,

PI8266 - September 10, 2013

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