Passat L4-1.8L Turbo (AWM) (2004)
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Install oil pan, but leave engine in service position".
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Fill engine with fresh engine oil.
CAUTION!
For following repair steps:
The engine must be able to run for an extended period of time, but it is not yet necessary to restore the vehicle in full driving conditions.
Ensure Engine and transmission are adequately supported!
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With vehicle on a hoist, transmission in neutral and wheels raised off the ground.
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Start engine and verify that appropriate engine oil pressure is obtained (see VESIS for specifications).
CAUTION:
Ensure adequate ventilation to engine and unrestricted airflow to coolant radiator.
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Run engine at approx. 3000 RPM for 30 minutes (Tool VAG 1788/10 can be used for this purpose).
CAUTION!
DO NOT leave engine running unattended!
Monitor engine oil pressure throughout procedure.
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During this time the engine oil must reach a minimum temperature of 90°C (194°F).
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Switch Ignition OFF.
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With engine still hot.
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Immediately drain engine oil.
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Allow engine to cool to safely continue.
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Remove oil pan and remove/clean any solid oil residues as necessary.
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Inspect engine oil pump suction line strainer for obstruction.
If engine oil pump suction line strainer is blocked or partially blocked by solid particles:
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Clean or replace suction line as necessary.
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Replace oil filter again.
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Install oil pan, fill engine with fresh oil.
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Restore engine/vehicle to driving conditions.
Engine replacement guidelines:
If at least ONE camshaft bearing is damaged:
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Please contact your area QTM for engine replacement authorization.
With authorization obtained:
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Replace complete engine (head and cylinder block) using factory remanufactured parts in accordance to warranty policy.
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Replace turbocharger.
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Replace oil feed and oil return lines of turbocharger.
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Replace crankcase ventilation system hoses and pressure regulating valve as described beginning with Engine code AEB, ATW, (depending on
engine type).
