The development and production of complex oil filter modules has long been one of MAHLE’s core competences. When the overall system of “engine lubrication and cooling” is considered, many other functions can be integrated along with the filtration and cooling of the lubricating oil. These include oil mist separation, sensors for pressure and temperature control, oil pressure and crankcase pressure regulation, and the optional incorporation of a fuel cooler. Thanks to the integration and use of state-of-the-art materials—especially of high-performance plastics—, significant cost and weight savings can be achieved. Completely incinerable ecological filter elements that are easy to replace and dispose of are seeing increased use. Long-term filter elements using modern filter media and manufacturing processes provide an essential contribution to the extension of service intervals.