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The NGK direct-fit oxygen sensor for Audi A8 Quattro (2005–2009) provides OE-style oxygen detection to support closed‑loop ECU control of the air–fuel ratio, promoting fuel economy, engine performance and emissions management. Backed by NTK's ceramics expertise and continuous design improvements, the sensor features an advanced ceramic element with a 3-stage contaminant‑resistant plasma jet and deposit‑trap overcoat to resist contamination.
NGK Audi A8 Quattro 2009-2005 Direct Fit Oxygen Sensor
