Checking combination valves for secondary air system for proper operation and leakage - engine code CBRA — AUDI

🧭 Before you start

Fits: Audi A3 (8P, 2003–2012)

• Special tools named: 3094

Don't miss

• Disregard (item 1).
• Disregard (item 3).
• Blow lightly into secondary air hose with your mouth (do not use compressed air).
• Blow lightly into test hose with your mouth (do not use compressed air).

🔧 Engine codes this applies to

📋 Procedure

1. Disconnect air pipe (arrows). [Note: Disregard (item 1).]
2. Disconnect vacuum hoses (1, 2, 4) at rear of intake manifold.
3. Unbolt hose bracket from intake manifold (arrows) and move clear to rear, with hoses attached. [Note: Disregard (item 3).]
4. Disconnect secondary air hose (arrow), move hose clear towards the top and clamp off using hose clamp 3094.
5. Disconnect vacuum hose from combination valve for secondary air system (left-side).

6. Connect hand vacuum pumpVAS 6213 to vacuum connection on combination valve for secondary air system.
7. Disconnect secondary air hose at the position marked with an (arrow).
8. Blow lightly into secondary air hose with your mouth (do not use compressed air).
9. Operate hand vacuum pump to produce a vacuum.
10. Renew combination valve for secondary air system (left-side) if valve does not react as described .
11. Remove combination valve for secondary air (right-side) .
12. Connect hand vacuum pumpVAS 6213 to vacuum connection (1) on combination valve (right-side) for secondary air system.
13. Connect a suitable test hose (2) onto combination valve for secondary air system.
14. Blow lightly into test hose with your mouth (do not use compressed air).
15. Operate hand vacuum pump to produce a vacuum.
16. Renew combination valve for secondary air system (right-side) if valve does not react as described .
17. Install combination valve for secondary air (right-side) .

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