Renewing vacuum unit for turbocharger, version 3: VW Passat B8 (CKFC, CLHA, CLHB, CLHC, …)

🧭 Before you start

Fits: VW Passat B8 (3G, 2014–)

• Renewed: bolts

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• When removing and installing the circlip, do not apply too much force on the lever linkage. The turbocharger may be damaged when the circlip is pushed down, e.g using a large screwdriver.

🔧 Engine codes this applies to

📋 Procedure

1. Remove engine cover panel .
2. Release and unplug electrical connector (2) from position sender for charge pressure positioner G581.
3. Pull vacuum hose (3) off turbocharger vacuum unit (1).
4. Unscrew bolts (arrows) for vacuum unit. [Note: When removing and installing the circlip, do not apply too much force on the lever linkage. The turbocharger may be damaged when the circlip is pushed down, e.g using a large screwdriver.]
5. Remove circlip (4).

6. Detach control rod from adjusting lever, and remove vacuum unit together with position sender for charge pressure positioner G581.
7. Use new bolts and a new circlip from the repair kit.
8. Attach control rod to adjusting lever.
9. Install circlip (4). [Note: When removing and installing the circlip, do not apply too much force on the lever linkage. The turbocharger may be damaged when the circlip is pushed down, e.g using a large screwdriver.]
10. Fit vacuum unit, and screw in bolts (arrows) to stop by hand.
11. Connect connector (2) to position sender for charge pressure positioner G581.
12. Connect vacuum hose (3).
13. Seal bolts with sealing paint from repair kit.
14. Fit engine cover panel .
15. Start engine and clear event memory .
16. Carry out basic setting of vacuum unit.
17. Follow the path below to perform basic setting:

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