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Audi
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2006
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A8 Quattro Sedan (4E2) V8-4.2L (BGK)
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Repair and Diagnosis
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Engine, Cooling and Exhaust
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Engine
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Cylinder Head Assembly
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Valve
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Testing and Inspection
Valve: Testing and Inspection
Valves, Checking
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Visually check for signs of wear on the stem and on the seating surface. Replace the valve if it shows significant signs of wear.