A8L Quattro Sedan V8-4.2L (BVJ) (2007)
Camshaft: Removal and Replacement
Camshafts
Special tools, testers and auxiliary items required
‹› Multi-Point Socket (T10035)
‹› Tool Set (T10133)
‹› Adapter (T40058)
‹› Securing Pins 1 Set = Qty. 2 (T40116)
‹› Hand drill with plastic brush attachment
‹› Protective eyewear
‹› Sealant
‹› Here the removal and installation at left cylinder head is depicted in the following description.
Removing
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Remove cylinder head cover. Refer to: Left => [ Left Cylinder Head Cover ] See: Cylinder Head Assembly/Valve Cover/Service and Repair/Left
Cylinder Head Cover, right => [ 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 => [ ] See: Timing Components/Timing Cover/Service and Repair/Left and Right Timing Chain Covers.
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Remove camshaft timing chains from camshafts. Refer to => [ Camshaft Timing Chains ] See: Timing Components/Timing Chain/Service and
Repair/Camshaft Timing Chains.
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Disconnect electrical connector at intake camshaft position sensor - arrow -.
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Remove high-pressure pump.
CAUTION!
Risk of damaging valves and piston crowns.
‹› In the course of the following steps, the crankshaft must not stand with any piston at "TDC".
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Remove Crankshaft Holder (3242) from upper section of oil pan.