Removing and installing drive unit and damper spring: Audi Q7 (CAJA, CAKA, CCAA, CCBA, …)

🧭 Before you start

Fits: Audi Q7 (4L, 2005–2015)

• Renewed: drive unit bolts

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• Renew the drive unit bolts.Fit self-locking bolts or insert bolts with locking fluid Electronic parts catalogue.
• Clean sealing surfaces; they must be free of oil and grease.
• Before assembly, always remove residues from threaded holes for drive unit in bearing cover 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.
• Avoid damage to drive shaft.The drive unit must not be pulled in by screwing in the bolts. — Simultaneously turn drive pulley until opposite end of damper spring engages in hole in drive unit.

🔧 Engine codes this applies to

📐 3 workshop diagrams for CAJA

Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.

📋 Procedure

1. Detach coolant pipes from supercharger .
2. Position supercharger vertically in engine and gearbox support.
3. Remove bolts (arrows).
4. ⚠ To make sure bearing cover (1) 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). — Carefully press off drive unit from bearing cover and detach.
5. Detach damper spring.

6. With the aid of used oil collection and extraction unitV.A.G 1782, extract all oil for supercharger drive from bearing cover (including oil chambers (arrows) between ribs). [Note: Renew the drive unit bolts.Fit self-locking bolts or insert bolts with locking fluid Electronic parts catalogue.]
7. Clean sealing surfaces; they must be free of oil and grease.
8. Before assembly, always remove residues from threaded holes for drive unit in bearing cover 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. Insert damper spring in damper element.
11. Apply a thin layer of sealant to sealing surface of drive unit.
12. Fit drive unit to supercharger housing (pay attention to dowel sleeves).
13. ⚠ Avoid damage to drive shaft.The drive unit must not be pulled in by screwing in the bolts. — Simultaneously turn drive pulley until opposite end of damper spring engages in hole in drive unit.
14. Make sure that pulley and rotors turn freely and are not obstructed.
15. Check supercharger for leaks .
16. Install coolant pipes on supercharger .

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