Removing and installing drive unit: Audi A6/A7 C7 (CREA, CREC, CRED, CREG, …)

🧭 Before you start

Fits: Audi A6/A7 C7 (4G, 2011–2018); platform code 4X

• Renewed: seal for drive unit

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• Renew seal for drive unit after removal.Fit self-locking bolts or bolts with sealant Electronic parts catalogue.
• Clean surfaces; they must be free of oil and grease.
• Before assembly, always remove residues from threaded holes using a thread tap.
• The container is filled with the required amount of oil. It is not possible to check the oil level at a later stage.

🔧 Engine codes this applies to

📋 Procedure

1. Remove magnetic clutch .
2. Position supercharger vertically in engine and gearbox support.
3. Detach Woodruff key (1) from drive shaft (2).
4. Remove bolts (arrows).
5. ⚠ To make sure bearing cover (1) for rotor assembly does not come loose and remains properly sealed, always use spreader tool (arrows) to press off drive unit (2) as shown in illustration (do not use a hammer). — Using a spreader tool, carefully press off drive unit from bearing cover and detach.

6. With the aid of used oil collection and extraction unitVAS 6622A, extract all oil for supercharger drive from bearing cover (including oil chambers (arrows) between ribs). [Note: Renew seal for drive unit after removal.Fit self-locking bolts or bolts with sealant Electronic parts catalogue.]
7. Clean surfaces; they must be free of oil and grease.
8. Before assembly, always remove residues from threaded holes using a thread tap.
9. Fill bearing cover with oil for supercharger drive. [Note: The container is filled with the required amount of oil. It is not possible to check the oil level at a later stage.]
10. Apply a thin layer of sealant to sealing surface (arrow) for drive unit on rotor assembly and fit assembly sleeve T40318 onto drive shaft, as shown in illustration.
11. Fit drive unit with new seal onto rotor assembly (note position of dowel sleeves (1, 2)).
12. Tighten bolts (arrows).
13. Fit Woodruff key (1) into drive shaft (2).
14. Install magnetic clutch .
15. Check supercharger for leaks .
16. Install coolant pipes on supercharger .

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