A6 Quattro Sedan V6-3.2L (BKH) (2005)
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From start-up screen, select "Vehicle Self Diagnosis".
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Similar screen appears.
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Select Vehicle system "05 access and start permission" (arrow).
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Similar screen appears.
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Select "Update - Programming" (arrow).
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Follow instructions on VAS 5051 / 5052 tester.
Tip: