S8 Quattro Sedan V8-4.2L (AYS) (2002)
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Counter-hold viscous fan pulley with pin wrench 3212 and tighten fan using opened wrench 3312 and torque wrench (fan has left-hand thread).
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Remove cover -arrows-.
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Remove right toothed belt cover.
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Disconnect connector for Camshaft Position (CMP) sensor.
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Remove bolts -1-.
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Loosen bolt -2-.
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Pull toothed belt cover toward front and remove CMP housing.