1997 e39 525tds - economy tuning?

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  1. 1997 e39 525tds - economy tuning? 
    #1
    Bimmer Fan
    Car Details
    jax13's Car Details
    Model of Car:
    525
    Year of Manufacture:
    1997
    Transmission Type:
    auto
    Car Body Type:
    saloon

    Join Date
    Sep 2010
    Location
    cheshire
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    I realise this may seem like blasphemy BUT - does anyone out there offer an eco-tune for the tds engine?

    if they do, what sort of economy figures are projected?
    cost?
    potential savings?
     
     

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    #2
    BMW Guru
    Car Details
    TheEnd's Car Details
    Model of Car:
    540
    Year of Manufacture:
    1998
    Transmission Type:
    Auto
    Car Body Type:
    Saloon
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    Birmingham
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    Unless you are really pushing a diesel, the tuning will help with economy, but it also depends on the driving style.

    The key is an improvement in efficiency.
    If you have your 525tds tuned, and drive it economically, you'll see an increase. If at all times you have your foot to the floor, you'll get worse economy.

    Think of it like the range of possible MPGs will widen. If you drive it smoothly, the mpg will be better. If you drive it flat out, the mpg will be worse, but the power will be better.

    Taking 30mpg as about the average, if you are currently getting near or more than that mpg, you'll have a good increase.
    If your current mpg figures are worse than 30mpg, you might have a more aggressive driving style and the jump in economy will be less noticeable.
     
     

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