Fuel Pump Module Assembly For A6 C6 2004-2011 Feed Unit 4F0919087B In Tank Transfer With Level Sensor Modification

For A6 C6 2004 2005 2006 2007 2008 2009 2010 2011 Fuel Pump Assembly Integrates The Pump Core, Inlet Filter, Oil Reservoir, And Float Level Sensor. The fuel delivery is adjusted according to engine load changes, increasing fuel supply during acceleration and maintaining stable output during constant speed driving, matching the fuel consumption requirements of gasoline engines under different operating conditions. Maintaining stable fuel pressure across the entire load supports uniform fuel spray patterns from the injectors, helping to reduce engine roughness caused by pressure fluctuations. Important Note: Before purchasing, please ensure that your vehicle model is compatible with this product and verify the part number (OE number). If you have any questions, please feel free to contact us; we are here to help. Thank you for your business. Common symptoms of a faulty fuel pump include: increased fuel consumption, a smell of gasoline inside the vehicle, reduced engine performance and acceleration, the engine stalling while running, difficulty starting or failure to start, an illuminated "Check Engine" light (indicating low fuel pressure), and a high-pitched humming or buzzing noise coming from the fuel tank area.