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Replacing the Lambda Sensor on the Subaru Forester

Model: Subaru Forester SH, MK 3 - Years 2008-2011
Part: Oxygen sensor

This guide shows you how to remove and replace the lambda sensor or oxygen sensor on the Subaru Forester, following these simple steps. First, open the bonnet of the vehicle and start removing the plastic clips from the panel located above the bumper to take it off; underneath, you will find the lambda sensor connected to the exhaust manifold, as shown in the video. At this point, disconnect the electrical connector and unscrew the lambda sensor, removing it and replacing it with the new original one; apply the reverse procedure for reassembly!

Updated on 22 August 2026 by ScegliAuto

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