Quick & Dirty way to tell when knock sensors were introduced by Audi

[Ti Kan]

Ti Kan writes:
> A4 (B5 chassis): all (1.8T I4, 2.8 V6, 3.0 V6)

Oops, I spotted a small error in my previous post.  The B5 chassis A4s
never got the 3.0 V6.

-Ti
2003 A4 1.8T multitronic
2001 S4 biturbo 6-sp
1984 5000S turbo
1980 4000 2.0 5-sp
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