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Replacing Lambda Sensor on Ford Fiesta

Model: Ford Fiesta Fiesta 5, MK 5, MK V - Years 2002-2008
Part: Oxygen sensor

Today, we will see how to remove and replace the lambda sensor on a second-generation Ford Fiesta. First, open the bonnet of your car and locate the lambda sensor, which is situated at the top of the engine: disconnect its electrical connector and unscrew it using a socket wrench with an extension. At this point, replace it with the new one, screwing it in by hand first and then tightening it with the wrench; test its operation and then check by starting the car, resetting any engine light that usually comes on when there is a malfunction with the lambda sensor.

Updated on 1 April 2026 by ScegliAuto

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by ScegliAuto

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