2.7L Turbo (A6, Allroad & S4 - Engine Code APB)

The engine code and serial number is on the machined surface on the cylinder block, at the front of the right cylinder bank. See Fig 1 . The engine code is also indicated on the vehicle data sticker.

Fig 1: Locating Engine Code & Serial Number - A6, Allroad & S4 (2.7L Turbo, Engine Code APB)

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