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Poor MPG help

Discussion in 'A4/A4 cabriolet/S4 forum(B6 chassis)' started by Rays18, Oct 2, 2012.

  1. Rays18
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    Rays18 East Tattoo

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    [Oct 2, 2012]
    So 2 months ago I was getting 60mpg and now only 43mpg
    Thats roughly 135/140 miles to £20 diesel compared to 90 odd now :(

    Any thoughts onto why ??
    My driving style hasnt changed at all and its only 100bhp model so you can hardly floor it anyway.


    Thanks !!
    #1
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  3. stu_m
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    stu_m Active Member VCDS Map User

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    [Oct 2, 2012]
    run a scan and check the MAF also is the temp gauge working ok ?
    #2
  4. marktdisport
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    marktdisport Active Member

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    [Oct 2, 2012]
    60 mpg !! In a b6 really.....
    #3
  5. a6_chris
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    a6_chris Well-Known Member

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  6. marktdisport
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    marktdisport Active Member

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    [Oct 2, 2012]
    43 is good for a b6 using fully not dis
    #5
  7. stu_m
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    stu_m Active Member VCDS Map User

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    [Oct 2, 2012]
    I have the same engine in my b6 and average 47 round town on a run its anywhere between 55 and 60 depending on speeds

    This is worked out at each fill up and not with the Dis although my dis is pretty much spot on since I altered it in vcds
    #6
  8. Rays18
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    Rays18 East Tattoo

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    [Oct 3, 2012]
    Ill get it looked up.
    It was only serviced 2 months ago so dont see how it could be/I missed it

    Thanks !!

    And yes 60mpg lol
    #7
  9. simon.m
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    simon.m Active Member

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    [Oct 3, 2012]
    yeah i have the 100bph and on a run would haply do over 700 miles to a tank iv clocked once saying i had 705 left and had already done 62 miles so 767 to a tank not that helps you any ;-)
    #8
  10. bugwhizz
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    bugwhizz Member

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    [Oct 4, 2012]
    I have never had better than 43mpg on the DIS but mine is a 1.9tdi Quattro sport avant so a little heavier.
    #9
  11. simon.m
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    simon.m Active Member

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    [Oct 4, 2012]
    are you saying 20 pounds used to get you 135/140 miles and is now doing just 90 miles on 20 pounds as thats what it reads like to me in your post if so thats easy the price has gone up on diesel so you would need to put say 30 in now if iv read your post wrong then mybad :hi:
    #10
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  12. Andi25th
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    Andi25th Member

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    [Oct 5, 2012]
    A Faulty Water temp sensor can cause low MPG. This will not show on VCDS.
    #11
  13. glenandem
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    glenandem Member

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    [Oct 5, 2012]
    wouldnt that be seen with a dicky temp gauge on binnacle?
    #12

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