Servicing subframe: Audi Q7

🧭 Before you start

Fits: Audi Q7 (4L, 2005–2015)

• Special tools named: 3094

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• Front wheels must be in straight-ahead position when universal joint is detached from steering rack.Do not change position of steering wheel or steering rack after this step.
• It must be possible to apply support ring T10301/8 without using any force and the ring must remain straight.
• To prevent damage to subframe, ensure that thrust plate T10301/10 is in the correct position when pressing in bonded rubber bush. — Apply tools as shown in illustration.
• It should be possible to apply support ring T103301/14 without using any force and the ring must remain straight.
• To prevent damage to subframe, ensure that thrust plate T10301/15 is in the correct position when pressing in bonded rubber bush. — Apply tools as shown in illustration.

📋 Procedure

1. Position vehicle on lifting platform .
2. Remove noise insulation 50.
3. Take up weight of engine assembly with support bracket.
4. 3.6 ltr. FSI engine: supporting engine assembly with support bracket
5. 3.0 ltr. TFSI engine: supporting engine assembly with support bracket 10

6. 4.2 ltr. FSI engine: supporting engine assembly with support bracket
7. 3.0 ltr. TDI engine: supporting engine assembly with support bracket
8. 4.2 ltr. TDI engine: supporting engine assembly with support bracket
9. 6.0 ltr. TDI engine: supporting engine assembly with support bracket
10. Unbolt propshaft from front final drive and tie up propshaft 39.
11. Unplug electrical connection (arrow) at servotronic solenoid valve N119.
12. If fitted, detach heat shield (A) from steering rack (2 bolts). [Note: Front wheels must be in straight-ahead position when universal joint is detached from steering rack.Do not change position of steering wheel or steering rack after this step.]
13. Remove bolt (B) for universal joint on steering rack and pull universal joint off steering rack.
14. ⚠ Hose clamps up to 25 mm ∅3094 must not be applied at any point near the non-return valve in the return hose.The non-return valve is located in the return hose between the projections (arrows A) or between the hose clips (arrows B). — Clamp off suction hose and return hose at reservoir using hose clamps up to 25 mm ∅3094.
15. Unbolt bracket (1) for hydraulic lines.
16. Disconnect pressure and return lines (2) from steering rack.
17. Detach bolt connection (2) on both sides.
18. Position engine and gearbox jackV.A.G 1383 A with suitable wooden block under subframe and press subframe upwards lightly.
19. Fix position of subframe .
20. Remove bolts (4) and, if fitted, detach thrust washers .
21. Lower subframe approx. 200 mm using engine and gearbox jackV.A.G 1383 A.
22. Remove bolts (1) to (4).
23. Take out anti-roll bar (5).
24. Apply support ring T10301/8 with thinner side (arrow) facing subframe. [Note: It must be possible to apply support ring T10301/8 without using any force and the ring must remain straight.]
25. Apply special tools as shown in illustration.
26. Press out bonded rubber bush.
27. ⚠ Hold hydraulic pressVAS 6178 securely during pressing operation. — Apply thrust plate T10301/10(1) with open side to subframe.
28. ⚠ To prevent damage to subframe, ensure that thrust plate T10301/10 is in the correct position when pressing in bonded rubber bush. — Apply tools as shown in illustration.
29. Press in bonded rubber bush until collar contacts bush of subframe »without gaps«.
30. Place engine and gearbox jackV.A.G 1383 A under subframe.
31. Remove front subframe bolts (1) and detach thrust washers (2).
32. Lower subframe (1).
33. Apply support ring T10301/14(1) with thinner side (arrow) facing subframe. [Note: It should be possible to apply support ring T103301/14 without using any force and the ring must remain straight.]
34. Apply tools as shown in illustration.
35. ⚠ Before pressing out the bush, position engine and gearbox jackV.A.G 1383 A with the universal mount under the cylinder because the cylinder can drop out when the pressing operation is completed.Hold hydraulic pressVAS 6178 securely during pressing operation. — Press out bonded rubber bush.
36. Apply thrust plate T10301/15(1) with open side to subframe.
37. ⚠ To prevent damage to subframe, ensure that thrust plate T10301/15 is in the correct position when pressing in bonded rubber bush. — Apply tools as shown in illustration.
38. Press in bonded rubber bush until collar contacts bush of subframe »without gaps«.
39. Apply tools as shown in illustration.
40. Press out bonded rubber bush.
41. ⚠ Hold hydraulic pressVAS 6178 securely during pressing operation. — Apply tools as shown in illustration.
42. Press in bonded rubber bush until collar contacts bush of subframe »without gaps«.
43. Remove rear subframe bolts (arrow) and detach thrust washers (2).
44. Lower subframe (1) and wedge a block of wood (2) between underbody and subframe.
45. Apply tools as shown in illustration.
46. ⚠ Hold hydraulic pressVAS 6178 securely during pressing operation. — Press out bonded rubber bush.
47. Apply tools as shown in illustration.
48. Press in bonded rubber bush until collar contacts bush of subframe »without gaps«.
49. If necessary, hold thrust washer (3) in position with counterhold tool T10172 A when tightening bolt (arrow).
50. Secure propshaft 39.
51. Secure wheels 44.
52. Vehicles with air suspension: set down vehicle on its wheels .
53. Bleed steering system .
54. Check hydraulic fluid level .
55. Check steering system for leaks .

Other AUDI procedures

• Removing and installing toothed belt – Audi · 56 torque figures
• Removing engine – Audi A8 D3 · 41 torque figures
• Removing camshaft timing chain from camshafts – Audi A6/A7 C7 · 38 torque figures
• Installing engine – Audi A8 D4 · 36 torque figures
• Removing and installing camshaft timing chain · 29 torque figures
• Checking lambda control and lambda probes -G39 and -G108 upstream of catalytic converter
• Checking cut-in signal for air conditioner compressor regulating valve N280
• Removing and installing auxiliary air heater element Z35
• Removing and installing power and control electronics for electric drive JX1
• Renewing gearbox cover (with gearbox installed)