A6 Sedan V6-3.2L (BKH) (2007)
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Disconnect coolant hose - 3 - from coolant pipe.
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Remove bolts - 1 - and - 2 - and pull coolant pipe rearward and out of the cylinder block - arrow -.
Installing
Installation is in reverse order of removal, note the following:
‹› Replace O-ring.
‹› During installation, all cable ties must be re-installed at the same location.
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Clean and/or smooth O-ring sealing surface before installing.
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Coat a new O-ring with coolant and slide it onto the coolant pipe.
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First tighten the union nuts - 1 -, - 4 - and - 5 - for the high pressure lines by hand and then the lines - 2 -, - 3 - and - 6 -.
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Make sure the high-pressure lines are seated free of stress.
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To fasten the high-pressure line (14 mm) at fuel rail use the Torque Wrench (V.A.G 1331) with 14 mm Open End Wrench Socket (V.A.G 1331/8).