Incorrect DEF Quality Error
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Thread: Incorrect DEF Quality Error

  1. #1
    FRESHMAN ROVER
    Join Date
    November 20th, 2007
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    Angry Incorrect DEF Quality Error

    Driving home this evening in my TD6 I got an amber warning light and the error message “No Engine Restarts in 249 miles. Incorrect Diesel Exhaust Fluid Quality Detected.” The vehicle is 18 months old with 14,000 miles. It was serviced at the dealer in January and DEF topped up – reservoir is good for another +/- 5,000 miles. Anyone experience this? The miles counted down on the error message – I am down to 136 miles, which does not leave me a lot of cushion to get to the dealer if the car really won’t start.

    I searched around and saw this thread 2016.5TDV6 Issues since new
    Which seemed to be a similar but not identical issue. Presumably I already got that software update. For what it is worth, I had a check engine light three weeks ago and the sensor was bad – I need to go back to the dealer to get that swapped out anyway as the part had to be shipped across the pond.

    Any help much appreciated.

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  3. #2
    Premium Member
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    Re: Incorrect DEF Quality Error

    How many miles do you get on a full tank of DEF?

    If you are in need of extending your miles till you can get to the dealer it might help to put more DEF in. Not saying it would work but it could.

    Aside from shelf life and improper storage practices, which is kind of hard to make DEF out of spec I have never heard of this before. And I am not talking in Land Rovers. I am talking industry wide as I have worked with customers that sell and store it.
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  4. #3
    SITE ADMINISTRATOR RRToadHall's Avatar
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    Re: Incorrect DEF Quality Error

    I do remember this countdown coming up awhile back in the 405 or 494 sections. The person was still able to drive after the countdown hit zero. The root issue was not improper or expired fluid it was a software glitch that was rectified by a TSB for def fluid metering/dosing.

    Sorry I can't be more specific. My memory is a bit vague because it's not something that has popped up very often.
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  6. #4
    FRESHMAN ROVER
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    July 5th, 2016
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    Chandler, AZ
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    Re: Incorrect DEF Quality Error

    just had mine in for a def fill. Got a low def warning and figured it was just a top it off issue. Dealer said, no it is a software update issue. That may be what is happening to yours

  7. #5
    FRESHMAN ROVER
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    November 20th, 2007
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    Re: Incorrect DEF Quality Error

    Quote Originally Posted by flyersfan76 View Post
    How many miles do you get on a full tank of DEF?

    If you are in need of extending your miles till you can get to the dealer it might help to put more DEF in. Not saying it would work but it could.

    Aside from shelf life and improper storage practices, which is kind of hard to make DEF out of spec I have never heard of this before. And I am not talking in Land Rovers. I am talking industry wide as I have worked with customers that sell and store it.
    Thanks all. I had just short of 10K miles when I had it serviced in January, so I got at least that mileage out of the DEF tank (and had no low DEF warnings before then). I also got all of the software upgrades in January so I fear the prior fix may not help. I will add some DEF if I can't get to the dealer in the next few days.

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