A6 Quattro Sedan V8-4.2L (BVJ) (2007)
Valve Guide Seal: Service and Repair
Valve Stem Seals, Replacing
Special tools, testers and auxiliary items required
‹› Spark plug removal tool (3122 B)
‹› Valve seal removal tool (3364)
‹› Valve stem seal driver (3365)
‹› Valve cotter disassembly and assembly device (VAS 5161)
‹› Adapter (T40012)
Removing
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Remove camshaft timing chains from camshafts => [ Camshaft Timing Chains, Removing from Camshafts ] See: Timing Components/Timing
Chain/Service and Repair/Camshaft Timing Chains, Removing From Camshafts.
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Remove camshafts => [ Camshafts ] See: Camshaft, Lifters and Push Rods/Camshaft/Service and Repair.
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Using spark plug removal tool (3122 B), remove spark plugs.
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Place drift (VAS 5161/3) on valve spring plate and loosen stuck valve cotters using a plastic hammer.
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Place guide plate (VAS 5161/19A) from Valve Cotters Asm/Dis-Asm Device (VAS 5161) on cylinder head.