It's the same on C5 isn't it? I have to double check. The one in our A6 is sometimes changing settings on it's own I think it's to due to battery getting old and dropping voltage when starting but might be faulty unit.
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Currently 8less
2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D
8 history:
2006 A8 Sport 4.2TDI quattro SOLD,
1997 S8, reached end of life with gearbox failure
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