volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Combination Valve, Checking|Page 4011 > < Combination Valve, Checking
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Combination valve, checking

Engine: AQY

Special tools and equipment

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VAG 1390 Hand vacuum pump

Requirements

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No malfunctions stored in DTC memory

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Final control diagnosis performed, Adapting functions and components.

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Vacuum lines and hose unions must not leak.

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Vacuum lines not blocked or kinked.

Work sequence

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Remove engine cover.

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Remove vacuum hose -1- from Secondary Air Injection (AIR) Solenoid Valve -N112- -2-.

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Connect hand pump VAG 1390 to vacuum hose-i-.

Note:

Do not use compressed air during the following check!

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Remove pressure hose -1- from secondary air pump motor and blow in with slight pressure (arrow).

Combination valve must be closed.

Combination Valve, Checking|Page 4011 > < Combination Valve, Checking