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Home >> Audi >> 2009 >> Q7 4.2 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 23 (3.0L - Diesel Fuel Injection - Engine Code: CATA) >> 23 Diesel Fuel Injection >> Safety Precautions And Clean Working Conditions >> Vacuum System Checking

Vacuum System Checking

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Special tools and workshop equipment required 

Procedure

-- Check all vacuum lines in the vacuum system for:

-- Check the vacuum line leading and to and from the solenoid valve.

-- If there is a fault, check the vacuum lines for the named component, but also all the vacuum lines to the other components.

-- If using the Hand Vacuum PumpVAS6213 does not produce any pressure or if the pressure drops again right away, then check the hand vacuum pump and the connection hoses for leaks.