Coils can be physically cracked or damaged by dropping, rough handling
like excess side flexing and prying with incorrect tools when attempting
to remove, by the destructive water penetration that Audi's Coilpack TSB
refered to, etc.

I just changed spark plugs on a 3.0 and noticed half the coilpacks and
related spark plugs had surface rust suggesting water was getting past
the rubber moisture seal while the other coilpacks looked brand new.
Time will tell which coilpack(s) fail first.


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K04-S4
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