Q7 Quattro V8-4.2L (BAR) (2008)
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Remove nuts - 1 to 4 - and remove right locking flange cover - arrows -.
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Carefully release and disconnect electrical harness connector - arrow - at locking flange.
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Connect (V.A.G 1348/3A) with adapter cable (V.A.G 1348/3-3) and an adapter cable from (V.A.G 1594C) at terminal - 1 -.