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Anyone got a S4 in Birmingham area, prepared to help me please?

Discussion in 'A4/A4 cabriolet/S4 forum(B6 chassis)' started by Thacker, May 21, 2011.

  1. Thacker
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    Thacker New Member

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    I have a servotronic fault which I think is the control relay? But the servotronic system has no diagnostics, so it maybe something else? Audi want £100 for the unit but I would like to try someones known functioning unit in my car prior to blindly buying one. Its a 2 minute job its located behind the fuse panel.

    Anyone willing to help? It would be much appreciated.

    Cheers! Ed
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  2. Thacker
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    Thacker New Member

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    The favour will be returned!
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  3. bez101
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    bez101 Yorkshire & Humber Rep.

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    what number is the relay ?
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  4. Thacker
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    Thacker New Member

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    Its got 638 in white letters, it's bespoke to the S4 but any servotronic module would do, i think the settings are just different in comparison to A4 servotronics. I do have the audi part number somewhere.
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