Removing and installing servo motor with control unit: Audi A3

🧭 Before you start

Fits: Audi A3 (8P, 2003–2012)

• Renewed: complete steering rack unit

Don't miss

• Renew the complete steering rack unit if there are signs of corrosion, damage or wear on the rack.

📋 Procedure

1. Remove steering rack .
2. Clean steering rack in area of servo motor with control unit.
3. Clamp steering rack in a vice as shown.
4. Turn steering wheel to straight-ahead position.
5. Remove hydraulic thrust piece .

6. Unplug connector from control unit.
7. To unplug connector, press button (a) in direction of arrow.
8. Remove securing bolts (1) and lever off servo motor with control unit from steering rack housing.
9. Clean sealing surfaces. [Note: Renew the complete steering rack unit if there are signs of corrosion, damage or wear on the rack.]
10. Fit new seal onto servo motor with control unit.
11. Grease pinion.
12. Apply Curil K2 to sealing surface (arrow).
13. Insert servo motor with control unit into steering rack housing using new bolts and tighten in diagonal sequence.
14. Connect sensor wiring to control unit.
15. Install new hydraulic thrust piece
16. Install steering rack .
17. Perform basic setting.
18. Perform adaption and basic setting for power steering control unit J500 using .
19. Check wheel alignment .

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