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Tiptronic display PRNDS blanking out (Allroad 2.5TDI, 2004)

Discussion in 'A6/S6/Allroad forum (C5 Chassis)' started by ms1083, Jan 2, 2012.

  1. ms1083
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    ms1083 Member

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    QUite often now when I start the car and select drive or reverse all the PRNDS blank out. Its gradually happening more & more. Car drives fine but cruise control & the tiptronic switches on steering wheel dont work. If I stop the car and restart it normally works like normal and nothing blanks out. Also tends to keep working like normal for the day from then on. Done a fault check:

    18161-163 KWP1281
    F189 triptronic switch static
    P1753

    I have checked the tiptronic switch module, the sliding cover looks fine & the magnets are all in place like normal.
    Tends only to go wrong first thing in morning, especially when cold & wet.
    Wondering if the most likely thing is the actual F189 electronic switch circuit board & being affected by dam/cold. Dried it out with some mets & WD40 the connectors but still going wrong.

    Replacment F189 switch just over £100 - very tempted to buy a new one and hopefully problem fixed but any comments/suggestions before I splash out?
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