New Beetle L5-2.5L (BPS) (2006)
Air Injection Control Valve: Service and Repair
Secondary Air Injection Solenoid Valve, Checking
Special tools, testers and auxiliary items required
‹› Connector test set (VAG 1594C)
‹› Assisting hose, for example, coolant hose
Sequence
‹› Do not use compressed air during the following check!
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Remove the engine cover.
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Disconnect the pressure hose - 2 - from Secondary Air Injection (AIR) solenoid valve (N112) - 3 -. To do so, compress the securing ring.
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Disconnect the harness connector - 4 -.
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Slide the assisting hose - 1 -, for example, coolant hose, into the AIR solenoid valve.
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Blow forcefully into the assisting hose - arrow -.
Valve must be closed.
If air can be blown through the valve with the assisting hose properly sealed:
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Replace the AIR solenoid valve.
If valve is closed:
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Connect terminals on the connector connection - 5 - with adapter cables from (VAG 1594C) to the battery positive (+) and negative (-).
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Blow forcefully into the assisting hose - arrow -.
Valve must be opened.
If no air can be blown through the valve with the assisting hose properly sealed:
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Replace the AIR solenoid valve.