S4 Quattro Wagon V8-4.2L (BHF) (2008)
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Disconnect electrical harness connectors - 1 to 4 -.
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Remove ignition coils - arrows -.
‹› Extractor (T40039) can be used for removal.
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Disconnect hose of crankshaft housing ventilation - arrow -.
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Remove right cylinder head cover bolts in sequence - 15 to 1 -.
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Remove cylinder head cover.
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Disconnect electrical harness connector - arrow - for Camshaft Position (CMP) Sensor 2 (G163) on left cylinder head.