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Replacing the Exhaust Gas Lambda Sensor

Model: Audi A6 MK 3, C6 - Years 2004-2012
Part: Oxygen sensor

This video shows us how to replace the lambda sensors on our car. First, locate where the lambda sensors are housed; in this case, we have two screwed into the exhaust manifold connections and one right in the manifold area. To remove them, simply unscrew them from their housing and disconnect the connector attached to their wire. The most complicated part is getting to unscrew them; you will need to remove the air tube that connects the air filter to the engine and the expansion tank containing the coolant. Once these elements are removed, you will have created a path to work more easily on replacing the lambda sensors.

Updated on 10 February 2026 by ScegliAuto

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