E90 2005 320D not starting - ECU!

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  1. E90 2005 320D not starting - ECU! 
    #1
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    Longtime forum reader here.

    Problem with my 2005 320d

    Started the car one morning, everything was fine, no odd sounds or nothing. Set off to move, probably got a meter away and the car decided to cut off. Didn't start, just a cranked for a while but nothing. No problems before this, no warnings.

    Had it taken to a mechanic, told me that my ECU was flooded as the drainage was blocked and therefore have a knackered ECU which cannot be fixed by refurbishing companies.

    Right heres my concern. If I get a new ECU, programmed and installed will my car start as normal? Could the cut off concern be put down to the ECU only?

    Such a headache.
     
     

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    There's a chance you can extract the info from the old ECU, and implant it into a used one, otherwise, a new ECU and programming will get it going again.
     
     

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    Quote Originally Posted by TheEnd View Post
    There's a chance you can extract the info from the old ECU, and implant it into a used one, otherwise, a new ECU and programming will get it going again.
    Thanks for the reply mate. Have you come across this issue before?
     
     

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    Drowned ECUs? Yea, it happens from time to time, on other models too from E46's to E60's.

    Even E36 3 series could have a similar problem from time to time, but they have the ECU in a different spot, not in the "e-box" like most cars from E38 onwards.
     
     

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    Ah okay. As it does seem to be the ECU that has had it, you think it's as simple as getting a new one installed and coded and the car will be back to normal? I mean there wasn't no other known faults before this, and as it heavily rained before that it surely has to be down to the unit
     
     

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    Quote Originally Posted by EatsOwls View Post
    Ah okay. As it does seem to be the ECU that has had it, you think it's as simple as getting a new one installed and coded and the car will be back to normal? I mean there wasn't no other known faults before this, and as it heavily rained before that it surely has to be down to the unit
    Yes replacing the ECU is not a problem, I had it done to my e46 although it cost me £690 just for the ECU :O


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    Quote Originally Posted by lee_h View Post
    Yes replacing the ECU is not a problem, I had it done to my e46 although it cost me £690 just for the ECU :O


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    that was expensive lee. I take it the car had to be at bmw to have the ecu flashed before the car could start? these are all tied in to the security on the car aren't they? key, dme, and something else that I can't remember right now.
     
     

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    New ECUs can be recoded with BMW diagnostic stuff, used ECUs will usually require more electronic work, opening them up etc.
     
     

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    Well I'm paying around 500 odd for my ECU which is blank so all it needs is getting coded from a specialist. In comparison to the ridiculous 1800 I was originally quoted, I'm saving a pretty penny.
     
     

  11. E90 2005 320D not starting - ECU! 
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    I offer refurbished bmw ecu's
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