Volkswagen Workshop Service and Repair Manuals > Golf Mk6 > Power unit | 4-cylinder injection engine (1.6 l roller rocker finger) | Exhaust system | Secondary air system, engine codes BGU, BSE, CCSA, CMXA

Checking combination valve

l	Hose connections must be leak-free.

Note

Do not use compressed air during the following check!

–	Remove engine cover.

–	Remove pressure hose -arrow- from secondary air pump motor -V101-.

Note

To release, press buttons on hose coupling together.

–	Gently blow into pressure hose to combination valve. Combination valve must be closed.

–	Blow with great pressure into pressure hose to combination valve. Combination valve must open.

If the combination valve does not open, or is constantly open

–	Renew combination valve.

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