Press release #Automotive Aftermarket

90 years of Bosch fuel filters

Today’s Bosch aftermarket filter range for passenger cars in Europe features a market coverage exceeding 95 percent

  • Back in 1930, the first Bosch fuel filter already protected the injection components
  • Since 1936, a special filter paper has been reducing the maintenance efforts
  • Nowadays, Bosch filters protect both the engine and the occupants inside the cabin
Heiderose Dreiner

Heiderose Dreiner >


Karlsruhe – Way into the early days of the last century, impurities contained in fuel caused quite some engine breakdowns. Bosch solved this issue in 1930 by means of fuel filters protecting the injection systems of diesel – and later on also gasoline – engines against contaminants. Although the Bosch fuel filter first used 90 years ago was already pretty effective, it had to be cleaned quite often. A few years later, Bosch also found a solution for this: In 1936, a special paper was first used as filter medium. Although it has, of course, been improved and further developed ever since, this material is still used down to the present day because of its high cleaning efficiency.

Thanks to their high competence in the areas of injection systems and filters, Bosch development engineers also found solutions for other challenging issues related to engine technologies. In 1998, for instance, the Bosch common-rail diesel filter with water separator was launched onto the market. A special gasoline filter for in-tank units was developed in 2001 and a common-rail diesel filter for biodiesel engines in 2009. Fuel filters reliably separate particles and water from fuel and contribute to optimum engine performance. High-quality materials, thorough processing and stringent quality controls make sure filters for the workshop market meet the same standards as OE ones.

Filters for tomorrow's mobility

Hybrid, electric or fuel-cell drives also need these unremarkable heavy workers at the engine compartments. After all, all of these powertrain systems need clean fuel, air, water or oil as a coolant or lubricant for their batteries and/or engines. In order to ensure flawless propulsion and high mileages, filters will thus remain indispensable – even in future. And cabin filters will also continue to ensure clean air inside the cabin.

For this purpose, Bosch offers an aftermarket filter range with a market coverage for passenger cars in Europe exceeding 95 percent – a range drivers also rely on. At the German magazine “auto motor und sport” reader’s poll 2019, Bosch was thus voted “Brest Brand” in the Filters category for the 14th time in a row.

Contact person for press inquiries:
Heiderose Dreiner
Phone: +49 721 942-3145

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, products developed in-house and specifically manufactured for the aftermarket, as well as services. 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, 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 420,000 associates worldwide (as of December 31, 2022). According to preliminary figures, the company generated sales of 88.4 billion euros in 2022. Its operations are divided into four business sectors: Mobility Solutions, 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 440 subsidiary and regional companies in some 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 128 locations across the globe, Bosch employs some 85,000 associates in research and development, of which nearly 44,000 are software engineers.

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