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Knock sensor removed from a 2000–2004 Audi A4 B6 with the 1.6 ALZ petrol engine. This sensor detects engine knock and allows the ECU to adjust ignition timing for optimal combustion. Verify the OEM codes match your original unit before ordering, as sensor fitment can vary within the model range.
Knock sensor removed from a 2000–2004 Audi A4 B6 with the 1.6 ALZ petrol engine. This sensor detects engine knock and allows the ECU to adjust ignition timing for optimal combustion. Verify the OEM codes match your original unit before ordering, as sensor fitment can vary within the model range.
