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Engine Control Unit (ECU) location?

(1999 Audi A6 Quattro)
in Colorado City, CO on September 12, 2011
Where is the Engine Control Unit (ECU) located in a 1999 Audi A6 Quattro?
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Popular Answer
of Greg Solow's Engine Room on September 12, 2011
Engine ECU is just under windscreen in the engine compartment on the passenger side.
on September 12, 2011
I believe it is still under the carpet and cover under the passenger side front seat.
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