S4 Quattro Sedan V6-2.7L Turbo (APB) (2000)
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Remove plug from crankcase ventilation hose.
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Remove air pressure adapter.
With 5051 diagnostic tool connected:
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Erase DTC memory.
If smoke generator was not used to fill the system with smoke:
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Apply soapy water solution or equivalent to intake system connections.
Note:
An Ultrasonic detector may also be used to detect extremely small leaks.
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Inspect intake system connections for leaks.
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Repair any leaks found.
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Remove tester.
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Remove plug from crankcase ventilation hose.
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Remove air pressure adapter.
With 5051 diagnostic tool connected:
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Erase DTC memory.