A4 Sedan L4-1.8L Turbo (AEB) (1997)
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Unthread bolts -1- and -2- several turns.
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Remove engine covers.
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Unbolt crankcase ventilation hose -1- at cylinder head cover and heat shield.
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Unbolt both oil supply line bolts -2-.
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Remove heat shield -3-.
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Remove bolts -4-.
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Remove seal between turbocharger and exhaust manifold.
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Seal opening in turbocharger using clean cloth.