S5 Quattro Coupe V8-4.2L (CAUA) (2009)
CAUTION!
The engine could be destroyed.
‹› To prevent small parts from accidentally entering the engine through the opening in the timing chain compartment, cover the opening
with a clean cloth.
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Remove bolts - 1 - and - 2 - on the left cylinder head and remove both camshaft adjusters.
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Mark installation position of the camshaft adjuster with paint for installation later.
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Remove bolts - 1 - and - 2 - on the right cylinder head and remove both camshaft adjusters.
Installing
‹› Tightening specifications. Refer to => [ Camshaft Timing Chains Assembly Overview ] See: Camshaft Timing Chains Assembly Overview.
‹› Replace bolts which have been tightened to torque.
‹› Replace the locking bolt seal for the "TDC" marking.
CAUTION!
Risk of damaging valves and piston crowns.
‹› If camshafts are rotated, crankshaft may not rest with any piston at " TDC".
‹› Drive chain for timing mechanism installed. Refer to => [ Timing Mechanism Drive Chain ] See: Timing Mechanism Drive Chain.
‹› Secure crankshaft - 1 - in "TDC" position using Crankshaft Holder (3242).