09 LCI 318d Auto crappy MPG - Page 2

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    #11
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    Jim Bergerac's Car Details
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    I do very short journeys and still average 36 mpg! Something seriously wrong there. Google Endtuning in Birmingham and ask Enda to run a full diagnistic check. Will cost you about £30 all in and he will enable some extra goodies too. Did you change your MAF sensor as mine was on 26 mpg until I bought a new one.
     
     

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    #12
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    phototropic's Car Details
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    Long shot but it could also be a fuel leak?
     
     

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    XLYC (09-11-2016)

  5.  
    #13
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    Quote Originally Posted by phototropic View Post
    Long shot but it could also be a fuel leak?
    A very big one too!
     
     

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  7. 09 LCI 318d Auto crappy MPG 
    #14
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    XLYC's Car Details
    Model of Car:
    318d M Sport
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    2009
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    Quote Originally Posted by phototropic View Post
    Long shot but it could also be a fuel leak?
    I doubt that as I can't see one?

    I did a full service today including the fuel filter, still 22mpg!

    Quote Originally Posted by Jim Bergerac View Post
    I do very short journeys and still average 36 mpg! Something seriously wrong there. Google Endtuning in Birmingham and ask Enda to run a full diagnistic check. Will cost you about £30 all in and he will enable some extra goodies too. Did you change your MAF sensor as mine was on 26 mpg until I bought a new one.
    I'm thinking MAF or thermostats next, but if endtuning could find the problem then even better

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    #15
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    Has it always been like this or has it got worst as it's got colder?

    If it has, then thermostats.....
     
     

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    XLYC (09-11-2016)

  10.  
    #16
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    Linkpad's Car Details
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    Could be all sorts of things MAF, Fuel pump, leaking injectors, thermostats, air intake, turbo .... You best off taking it to a diesel specialist.
     
     

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    XLYC (09-11-2016)

  12.  
    #17
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    XLYC's Car Details
    Model of Car:
    318d M Sport
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    Quote Originally Posted by thanatoid View Post
    Has it always been like this or has it got worst as it's got colder?

    If it has, then thermostats.....
    Always been like that since I bought it from a car dealer

    Quote Originally Posted by Linkpad View Post
    Could be all sorts of things MAF, Fuel pump, leaking injectors, thermostats, air intake, turbo .... You best off taking it to a diesel specialist.
    Well I'm going to have it plugged in to today by a mate and see if any codes pop up, wouldn't this be the same thing a specialist would do?

    I just don't want to change expensive parts and then it ends up being a small issue like an O2 sensor or a MAF.

    Fuel pump could be the problem but surely that would show up on a scan?


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  13.  
    #18
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    XLYC's Car Details
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    In a shocking turn of events

    I went on the motorway from Walsall to Birmingham about 12 miles and as I merged off the Aston expressway..

    I was at 70-80 most of the journey coming down to 55 near the end

    This was after the full service.

    I'm going to test local again as I can't seem to get above 25 from before


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  14.  
    #19
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    popben's Car Details
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    Is that your parking brake warning light I see illuminated?
     
     

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    XLYC (09-11-2016)

  16.  
    #20
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    XLYC's Car Details
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    2009
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    Quote Originally Posted by popben View Post
    Is that your parking brake warning light I see illuminated?
    Well after my service I tried resetting my service light, like a twit I ended up resetting my front or I think front and rear brake pad service option(s).

    Right after I noticed I did this I get the red ramp warning every time I turn my car on and off and also the handbrake light stays on all the time.

    Now my brake pads are quite worn even before I did this so I do not know if it was a really good coincidence that the wear sensor has detected the worn pads or I triggered it myself by resetting the sensors.

    I can't seem to get it off my screen now


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