S5 Quattro Coupe V8-4.2L (CAUA) (2009)
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chain tensioner, piston faces toward tensioning rail.
‹› Replace bolts which have been tightened to torque.
‹› Replace the seals
CAUTION!
Risk of damaging valves and piston crowns.
‹› If camshafts are rotated, crankshaft may not rest with any piston at " TDC".
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Press the guide rails for the left or right camshaft timing chain tensioner in direction of - arrow - as far as the stop and secure the chain tensioner
with a Locking Pin (T40071).
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Clean oil strainer - 2 - in both chain tensioners if necessary.
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Position a new seal - 3 - on the rear of the chain tensioner - 1 -.
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Insert chain tensioner on the left cylinder head and position the camshaft timing chain according to the markings made during removal, as shown in
the illustration.
