Passat Sedan V6-3.6L (BLV) (2008)
Note:
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Control piston of oil pressure relief valve is spring-loaded. Therefore the highest care is required when screwing the sealing plug.
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The locking bolt is tightened in oil pump to 35 Nm.
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Pull control piston out of oil pump and remove soiling if necessary.
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Then check strainer in oil intake connection for contamination.
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Also check oil pipe on cylinder block at bottom for leaks. Replace sealing rings if necessary.
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Correct mechanical damage, e.g. bearing damage.
At higher engine speeds oil pressure must not exceed 7.0 bar
If a malfunction is found despite insufficient oil pressure:
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Replace oil pump.
If the specification is exceeded:
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Check oil channels.
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Replace oil pump.