Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI2009A6 BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 4 (3.0L - EXHAUST SYSTEM & EMISSION CONTROLS - ENGINE CODE: CCAA)26 EXHAUST SYSTEM, EMISSION CONTROLSDIAGNOSIS AND TESTINGSECONDARY AIR INJECTION COMBINATION VALVES, CHECKING FOR FUNCTION AND LEAKS
2009 Audi A6 Base
Secondary Air Injection Combination Valves, Checking For Function And Leaks
2009 Audi A6 BaseSECTION Secondary Air Injection Combination Valves, Checking For Function And Leaks
WARNING: This page is about a different variant/trim than selected.
Special tools and workshop equipment required
- Hand Vacuum Pump VAS6213
Procedure
- Vacuum lines and hose connections free of leaks.
- Vacuum lines not plugged.
-- Remove the engine covers -1- and -2- upward.
-- Remove the vacuum hose -2- on the combination valve to be checked.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.