Discovery 4 Fuel Gauge Reading Incorrect





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  1. #1
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    Default Fuel Gauge Reading Incorrect

    Hi All. I have a 2010 Discovery 4 SD V6 HSE. The last couple of weeks I have been told by the car its empty. (17km on average left in tank) only to put around 68 to 70 litres in the car afterwards. I have taken it twice to Land Rover and they changed the float and told me there is nothing wrong with the car. Its roughly a 84 Litre tank which I am currently using 70 Litres. Does this sound right? Is anyone else having similar problems.

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    I don't know about the LR4, but the BMW starts shouting after 55l used (65l tank) and the Navara starts shouting at about 68l used (80l tank)...

    On both cars the trip computer runs down to 0km to empty but will still have about 5-6l left before they are truly empty.

    I think this is just to make sure you don't sit and run the tank dry, which i am told is not a good thing to do on a Diesel.

  3. #3
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    Hi Nicholas. I used to use the entire tank on my Discovery 3. When it said it was empty and I filled up it use to take 75 - 80 Litres. That's why I was asking if anyone else had this issue. Just didn't sound right to not utilise over 12% of your tanks capacity.

  4. #4
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    Quote Originally Posted by SebastianH View Post
    Hi Nicholas. I used to use the entire tank on my Discovery 3. When it said it was empty and I filled up it use to take 75 - 80 Litres. That's why I was asking if anyone else had this issue. Just didn't sound right to not utilise over 12% of your tanks capacity.
    Buy petrol engine next time
    Last edited by frozen7days; 2015/05/08 at 04:40 PM.
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  5. #5
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    Default Fuel

    This is 'normal' for the diesel. In my d3 and d4 v8's I used to fill up with 80 odd liters. With my sdv6 and running with 10km!s left, I have never filled with more than 73l. I fitted LR tank and supposed to have 165l but never filled more than 146l and both tanks showing empty. I am sometimes so tempted to drive until I run out (with a jerrycan full in boot) just to see how much is really left. Not sure if this is a good idea though for various reasons.
    2020 FJ Cruiser, 2020 Audi Q5S Tdi, 2019 VW Tiguan 4motion 2.0tsi(work vehicle), 2019 FJ Cruiser, Bush Lapa Kewer 2202, Fusion 17 boat-Yamaha FT100hp 4st.

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