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ABS warniing lamp on ... where do I start?

Discussion in 'Classic Audi Forum' started by garybray, Dec 3, 2003.

  1. garybray

    garybray New Member

    Feb 14, 2003
    Likes Received:
    I've just discovered that the ABS warning lamp on my urS4 had been 'doctored' at some time in the past. The relevant bulb-holder had been twisted in its' mount just enough to prevent it from coming on. And guess what! ..... once on ... it stays on! There's a fault somewhere.

    Where do I start to unravel the problem?
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  3. Ram

    Ram Member

    Jan 4, 2003
    Likes Received:
    Get a VAG-COM from www.vag-com.co.uk to identify where the fault lies - VAG-COM will tell you if a sensor is faulty and which one it is!

    You can then trace back from there - usually you can pull the ABS sensor from the upright, clean it and replace it.

    May even be simpler!

    Best wishes,


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