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8L S3 BAM Brake warning, ESP, ABS and Battery warning light after hard acceleration

Mi7rennie Feb 13, 2013

  1. Mi7rennie

    Mi7rennie Member

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    Hi Folks,

    I was driving into work this morning, just thinking to myself; "The S3 is going well, not been to the parts department for months" so I give it some right boot off the last roundabout before my work and the dash lights up like a christmas tree!

    The flashing brake warning sign is on as is the ABS and ESP lights, the battery light came on initially and then went dim.

    I just drove the last half mile to work gingerly and parked up, haven't had time to investigate it yet, but I wondered if anyone else has ever had a similar issue?

    Any advise on fault finding or what it could be?

    Mike
     
    Last edited: Feb 13, 2013
  2. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow... Staff Member Moderator Audi S3

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    Check for fault codes in the first instance... if there are warning lights there will be fault codes logged...

    <tuffty/>
     
  3. Mi7rennie

    Mi7rennie Member

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    Ok,

    I'll get it on VagCOM tonight and see what comes up...
     
  4. Mi7rennie

    Mi7rennie Member

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    So, I managed to drive home last night after work, all the warning lights have gone out except the battery/battery light (the red one). I suspect a failed alternator.

    The yellow battery light started flashing near the end of my ten mile drive with no lights, heater, radio.

    I tested the battery voltage and it was 12V, when idling it was 12.6V; would a healthy alternator not usually be between 13 and 14V?

    I've not had a chance to log the fault codes as the pc is on the blink too. should get logs on Friday hopefully.
     
  5. Mi7rennie

    Mi7rennie Member

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    alternator replaced today and that has fixed the issue.
     
  6. Vex182

    Vex182 Guess what I drive...

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    Think mine is 14.4 at the battery with my alternator. If yours was 12.x then it must have been just enough to charge the battery and nothing more.
     

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