The proportion of electronics in vehicles has steadily increased in recent years. A development in which Hella has long played a special role as an innovation leader in the automotive OEM sector. The independent spare parts market also benefits from this long-standing expertise in the field of original equipment - as Hella successfully transfers its complete expertise in raw materials in this field and thus makes optimal use of existing specialist knowledge. With a coverage of nearly 15 million motor vehicles in Europe, the great popularity of Hella EGR valves is evident. Production is subject to high quality standards and the product range is constantly expanded. Exhaust gas recirculation effectively reduces the concentration of harmful nitrogen oxides.