Discovery 2017

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  • Wolfpack
    Member Since: 25 May 2019
    Location: Norfolk, UK
    Posts: 413
    United Kingdom 
    2017 Discovery Si6 HSE Corris Grey

    Oxygen sensor replacement

    I’ve had an intermittent emission light coming on which has been diagnosed as an oxygen sensor.

    I’ve got a petrol D5 and apparently it has 4 oxygen sensors (2 upstream and 2 downstream of the cat)

    Would the diagnostic identify WHICH of the 4 is faulty?

    It’s into the garage on Tuesday and getting them to commit to how long the job will take is like trying to get blood out of stone. I appreciate bedded in parts can take effort/time to remove.

    Just wondered (all going well of course) how big a job it is and …..I hoped they wouldn’t add to the time by having to remove all 4 in a trial an error excercise!

    It’s not just the cost. I have a long and important trip to make the next day and don’t know if I should postpone the trip (though it could cause major complications ) to be in the safe side.

    Thoughts?
    24th Aug 2025 12:22 pm
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