Audi smoke when cold

Ok all you Audi fans. There is an Audi technical bulletin covering a condition that not only causes a smoking condition when the temperature drops below freezing but also causes blown cam seals and
valve cover gaskets. Anybody out there hear of TB C1504-02 ?
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wrote:

No, but it sounds like there is a crankcase vent valve that suddenly ain't venting the crankcase, don't it?
Maybe this applies?
http://forums.audiworld.com/a6/msgs/486032.phtml
Or maybe this? http://forums.audiworld.com/a6/msgs/487860.phtml
/daytripper '00 s4 6spd
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Exactly. Sucker valve, vacuum boost valve whatever. This thing cost me a lot of money and confused a lot of mechanics.
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