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The NGK direct-fit oxygen sensor for Audi A6 (2006–2009) supplies continuous closed‑loop feedback to the engine control unit to regulate air–fuel ratio, support engine performance, improve fuel economy and reduce emissions. NTK’s OEM sensor technology emphasizes tight ceramic control from raw materials through production. The sensor’s 3‑stage contaminant‑resistant plasma‑jet element and deposit‑trap overcoat help guard against poisoning and extend service life.
NGK Audi A6 2009-2006 Direct Fit Oxygen Sensor
