Passat Wagon L4-1781cc 1.8L Turbo (AEB) (1998)
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Remove oil filter.
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Install oil filter adapter on oil filter holder.
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Connect oil lines from external oil filter assembly to oil filter adapter.
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Insert a new oil filter element in canister of external oil filter assembly.
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Partially fill (approximately 1 quart) canister of external oil filter assembly with engine cleaner, DO NOT overfill.
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Attach filled canister to external oil filter assembly and tighten securely.