Genuine OEM Audi Engine Air Filter Element, part number 4F0133843A. This filter is crucial for cleaning the air entering the engine, preventing dust, pollen, and other airborne particles from causing damage. It is typically housed within the air intake system. Weighing 0.346 kg and measuring 0.1m x 0.1m x 0.12m, this genuine OEM filter provides precise fitment and superior filtration, which is vital for maintaining engine efficiency, fuel economy, and preventing premature wear of internal components.