volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Throttle Position Sensor > < Oil Pressure Switch (For Fuel Pump)|Testing and Inspection
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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.

Throttle Position Sensor > < Oil Pressure Switch (For Fuel Pump)|Testing and Inspection