2000 E39 528i - Common ABS DSC and brake light warnings, nothing on diagnostics

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Thread: 2000 E39 528i - Common ABS DSC and brake light warnings, nothing on diagnostics

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  1. 2000 E39 528i - Common ABS DSC and brake light warnings, nothing on diagnostics 
    #1
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    bimmer528's Car Details
    Model of Car:
    528i Sport
    Year of Manufacture:
    2000
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    Saloon

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    Had the 3 warning lights come on, on every journey for about 7 months.
    Not always on when start up, but usually come on soon after.

    Today was MOT day, and of course it failed.. So i asked them to read my codes for me. They did and could not find a error code.

    Problem is my battery has been on its last for about the same time as the lights have been showing up. So driving away from the test centre to go home (20 miles) there was no warning lights. I guessed maybe the battery being dead was making the lights pop on..

    Anyway just replaced the battery with a brand new one. Again no warning lights so im made up.

    But just as i nea home they come on.

    Got to hope re-testing the codes tomorrow sorts it.
     
     

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    #2
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    TheEnd's Car Details
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    540
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    1998
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    Yep, low batteries will make the light come on.
     
     

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    #3
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    I have replaced the battery with a brand new one though, and after a few miles they are on again.

    I thought maybe when i had the old battery, perhaps not enough power was being supplied to the ABS, DSC etc, but now i have a new one, it should have sorted it.
     
     

  5.  
    #4
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    TheEnd's Car Details
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    So the problem still remains?
    code read is the best idea, and find out what triggered it then.
     
     

  6. The Following User Says Thank You to TheEnd For This Useful Post:

    bimmer528 (06-06-2011)

  7.  
    #5
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    bimmer528's Car Details
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    its booked tomorrow first thing.

    You username hopefully isn't an omen ha!
     
     

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    #6
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    bimmer528's Car Details
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    Seems to be worst case scenario.

    Code 81, Pressure sensor circuit.
     
     

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