volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Combination Valve, Checking|Page 3463 > < Combination Valve, Checking|Page 3461
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Air Injection Control Valve: Testing and Inspection
Secondary Air Injection (AIR) Valve, Checking

With Manufacturer's Scan Tool

Secondary air valve, checking 

Special tools, equipment, test and inspection devices; required accessories

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VAG 1594 A auxiliary measuring tool set

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VAG 1527 B diode test lamp

Test condition 

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Coolant temperature 5 - 33°C  

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Air pump motor OK.

Test sequence 

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Pull upper vacuum hose -arrow- of secondary air valve.

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Start motor and let it idle.

Combination Valve, Checking|Page 3463 > < Combination Valve, Checking|Page 3461