Checking vacuum unit on turbocharger and vacuum hoses — AUDI

🧭 Before you start

Fits: platform code 2C0

• Special tools named: VAS 6213
• Renewed: vacuum hose, turbocharger

Don't miss

• Do not use screws or threaded bolts.
• When fitting intake connecting pipe to turbocharger, ensure that intake connecting pipe is correctly seated on stud of turbocharger. (arrow).

🔧 Engine codes this applies to

📋 Procedure

1. Remove crankcase breather hose (1), press release buttons for this.
2. Unclip vacuum lines (arrows) and place to one side.
3. Remove intake hose (3) on air filter.
4. Unscrew bolt (2) (captive bolt). Twist intake hose (3) clockwise out of its holder and remove it.
5. Pull off vacuum hose (arrow) on middle connection of charge pressure control solenoid valve N75.

6. Seal open end of hose with suitable plug from engine bung setVAS 6122. [Note: Do not use screws or threaded bolts.]
7. Open bracket (2) and unhook vacuum hose (1).
8. Pull off vacuum hose (1) from vacuum unit on turbocharger.
9. Connect hand vacuum pumpVAS 6213 to removed vacuum hose (arrow) and generate a partial vacuum of 0.6 bar.
10. Observe pressure gauge of hand vacuum pumpVAS 6213 for approx. 30 seconds.
11. Renew vacuum hose.
12. Connect hand vacuum pumpVAS 6213 with vacuum hose from VAS 6213 to vacuum unit on turbocharger and generate a partial vacuum of 0.6 bar.
13. Observe pressure gauge of hand vacuum pumpVAS 6213 for approx. 30 seconds.
14. Replace turbocharger .
15. First pull vacuum hose off at hand vacuum pumpVAS 6213.
16. Reconnect vacuum hose on vacuum unit of turbocharger and on charge pressure control solenoid valve N75.
17. When fitting intake connecting pipe to turbocharger, ensure that intake connecting pipe is correctly seated on stud of turbocharger. (arrow).

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