Description: The Audi EVAP Leak Detection Pump (8E0-906-201-K) is a factory-original emissions component for 2002–2009 Audi A4 and S4 models across 1.8L, 2.0L, 3.0L, 3.2L, 4.2L, and RS4 engines, including Cabriolet variants. It pressurizes the fuel vapor system to detect leaks, maintaining EVAP compliance. A genuine Audi OEM pump built to original flow and sealing specifications.