Q7 Quattro V8-4.2L (BAR) (2008)
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Timing Chain: Service and Repair
Camshaft Timing Chain
Camshaft Timing Chain
Removing
‹› Engine-transmission assembly removed and separated on the scissor lift table (VAS 6131 A). Refer to => [ Engine and Transmission, Separating ]
See: Service and Repair/Engine and Transmission, Separating.
‹› Engine oil drained.
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Remove drive plate. Refer to => [ Drive Plate ] See: Transmission and Drivetrain/Flex Plate/Service and Repair/Drive Plate.
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Remove the cylinder head cover. Refer to => [ Left Cylinder Head Cover ] See: Cylinder Head Assembly/Valve Cover/Service and Repair/Left
Cylinder Head Cover, => [ Right Cylinder Head Cover ] See: Cylinder Head Assembly/Valve Cover/Service and Repair/Right Cylinder Head
Cover.
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Remove left and right timing chain covers. Refer to => [ Left and Right Timing Chain Covers ] See: Timing Cover/Service and Repair/Left and
Right Timing Chain Covers.
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Remove the intake manifold.
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Remove oil filter housing. Refer to => [ Oil Filter Housing ] See: Engine Lubrication/Oil Filter Housing/Service and Repair/Oil Filter Housing.
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Remove lower timing chain cover. Refer to => [ Lower Timing Chain Cover ] See: Timing Cover/Service and Repair/Lower Timing Chain Cover.
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Remove camshaft timing chains from camshafts. Refer to => [ Camshaft Timing Chains, Removing from Camshafts ] See: Camshaft Timing
Chains, Removing From Camshafts.
CAUTION!
If the running direction is reversed on a used camshaft timing chain, it could be destroyed.
‹› Paint arrows to mark the timing chain running direction so it can be installed again. Do not mark camshaft timing chain with punch,
notch or something similar.
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Remove bolts - 1 - and - 2 - and remove left chain tensioner and left camshaft timing chain.
CAUTION!
If the running direction is reversed on a used camshaft timing chain, it could be destroyed.
‹› Paint arrows to mark the timing chain running direction so it can be installed again. Do not mark camshaft timing chain with punch,
notch or something similar.
-
Remove bolts - 1 - and - 2 - and remove right chain tensioner and right camshaft timing chain.
