New Beetle L4-1.8L Turbo (BNU) (2005)
Air Injection Control Valve: Testing and Inspection
Combi-Valve, Checking
Special tools, testers and auxiliary items required
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Hand vacuum pump V.A.G 1390
Requirements
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No DTCs stored in Diagnostic Trouble Code (DTC) memory. See: Computers and Control Systems/Testing and Inspection/Scan Tool Testing and
Procedures
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Output Diagnostic Test Mode (DTM) performed. See: Computers and Control Systems/Testing and Inspection/Programming and Relearning
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Vacuum lines and hose connections free of leaks
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Vacuum lines not blocked/kinked
Work sequence
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Remove engine cover.
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Pull vacuum hose -1- off Secondary Air Injection (AIR) solenoid valve -N112- -2 -.
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Connect hand vacuum pump V.A.G 1390 to vacuum hose -1 -.
NOTE: Do not use compressed air during the following check.
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Disconnect pressure hose from secondary air pump motor by pressing corrugated area of ring together.
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Blow lightly into pressure hose -arrow -.
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Combi-valve must be closed
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Operate hand vacuum pump.
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Combi-valve must open
If combi-valve does not open:
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Replace combi-valve.