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9L4 BMW 318i 1996–1998 1
Make Model Years Engine Audi A4 Quattro 2002–2004 3
protecting the air pump and ensuring proper emissions control
It supports vehicle weight
Designed for the Volkswagen Passat (2007-2010)
Audi Upstream Oxygen Sensor – Denso TDI 9L4 BMW 318i 1996–1998 1This Denso upstream oxygen sensor measures the oxygen content in the exhaust to help the ECU adjust the air fuel mixture for optimal efficiency and reduced emissions. A failing oxygen sensor can cause poor fuel economy and engine performance. This direct replacement restores proper operation. Fits select Audi models from the early 1990s. Key Features & Benefits Heated Sensor: Reaches operating temperature quickly for accurate readings sooner. Direct