Reliable and highly efficient: Bosch ignition coils transform a vehicle battery’s voltage into thousands of volts. This is required to provide the high energy for an electrical spark in the spark plugs that ignites the fuel air mixture. Functionally and quality tested in accordance with the same standards as for original equipment parts: For high performance and reliability over a long service life High-quality materials and manufacturing methods: For excellent resistance to heat, vibration and corrosion, as well as long-lasting electrical mechanical stability Please use the vehicle identification to confirm compatibility with your vehicle. All restrictions must be observed. All work should only be carried out by trained specialists