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- - ECU (https://www.audiforums.com/forum/audi-a4-8/ecu-50438/)

S_R_N83

Jan 2, 2007 12:04 AM

ECU

Will an ECU from a 2000 A4 1.8tQ work in a 2001 A4 1.8tQ since they're both DBW, or not?

sean1.8t

Jan 2, 2007 12:09 AM

RE: ECU

no, the numbers on the ecu have to match..

dbw doesn't have anything to do with it

onepoint8tee

Jan 2, 2007 12:23 AM

RE: ECU

Its not the numbers on the ECU, its the letter that matters. Its the last digit/letter in your ECU "number." My ecu number is "4B0 906 018 Q" also refered to as a "Q box". So if i needed a new ecu all id have to worry about is getting one that part # ends in "Q"

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