How to replace a front shock strut on BMW 330i 3 (E92) [TUTORIAL AUTODOC]

How to replace a front shock strut on BMW 330i 3 (E92) [TUTORIAL AUTODOC]


Required tools:
Wire brush
WD-40 spray
Brake cleaner
Copper grease
Combination spanner #18
Combination spanner #21
Torx bit T30
HEX bit no.H6.
Drive socket # 13
Drive socket # 17
Drive socket # 18
Drive socket # 21
Wheel impact socket #17
Shock absorber socket
Ratchet wrench
Torque wrench
Pin punch
Tap wrench
Hammer
Crow bar
Hydraulic strut spring compressor
Hydraulic transmission jack
Fender cover
Wheel chock
1. Clean the fasteners of the shock strut upper mount.
Use a wire brush.
Use WD-40 spray.
2. Loosen the upper fastener of the shock strut mount.
Use a drive socket #13.
Use a ratchet wrench.
3. Raise the front of the car and secure on supports.
4. Unscrew the wheel bolts.
Use wheel impact socket #17.
AUTODOC recommends:
To avoid injury, hold up the wheel when unscrewing the bolts.
5. Clean the stabiliser link fasteners.
Use a wire brush.
Use WD-40 spray.
6. Unscrew the nut and remove the stabilizer rod from the shock strut.
Use a drive socket #17.
7. Clean the fastener connecting the ball joint to the steering knuckle.
Use a wire brush.
Use WD-40 spray.
8. Unscrew the fastener connecting the ball joint of the front control arm to the steering knuckle.
Use a drive socket #21.
Use a tap wrench.
9. Unscrew the end fastening nut to the steering knuckle.
Use a combination spanner #21.
Use Torx T30.
Use a ratchet wrench.
10. Unscrew the fastener connecting the ball joint of the rear control arm to the steering knuckle.
Use a combination spanner #21.
Use Torx T30.
Use a ratchet wrench.
11. Clean the fasteners connecting the shock strut to the steering knuckle.
Use a wire brush.
Use WD-40 spray.
12. Unscrew the lower fastener connecting the shock strut to the steering knuckle.
Use a combination spanner #18.
Use a drive socket #18.
Use a ratchet wrench.
13. Prop up the steering knuckle.
Use a hydraulic transmission jack.
14. Remove the fastening bolt.
15. Release the lower fastener connecting the shock strut to the steering knuckle.
Use a special drive socket to remove the shock absorber.
16. Disconnect the tie rod end from the steering knuckle.
17. Clean all joints of the arm.
Use a wire brush.
Use WD-40 spray.
18. Unscrew the rear fastener connecting the control arm to the subframe.
Use a combination spanner #18 (2 pieces).
19. Detach the rear control arm from the steering knuckle.
20. Detach the front control arm from the steering knuckle.
21. Disconnect the steering knuckle from the shock absorber strut.
Use a pin punch.
Use a hammer.
AUTODOC recommends:
Make sure that the steering knuckle is supported.
22. Unscrew the top fastening of the shock strut mount.
AUTODOC recommends:
To avoid injuries, hold the shock strut when undoing the fastening bolts.
23. Remove the suspension strut.
24. Set the shock absorber strut on the spring compressor tool.
AUTODOC recommends:
Note that when using a spring compressor, spring coils need to be securely gripped, compressing the spring on the opposite sides.
Ensure the correct position of the spring in the retainer.
Make sure that the spring coils tightly entered the lock handles.
25. Compress the spring.
26. Remove the shock strut mount cap.
Use a crowbar.
27. Treat the shock strut rod.
Use a wire brush.
Use WD-40 spray.
28. Remove the strut piston rod nut.
Use a drive socket #21.
Use HEX No.H6.
Use a ratchet wrench.
29. Remove the top strut mount.
Use a crowbar.
30. Release the coil spring.
31. Remove the spring.
32. Remove the shock absorber dust cap and the bump stop.
AUTODOC recommends:
Τhoroughly examine the shock absorber mount, dust boot, bump stop. Replace them if necessary.
33. Remove the old shock absorber from the hydraulic coil spring compressor.
AUTODOC recommends:
Before installing a new shock absorber you should pump it manually 3-5 times.
34. Install the new shock absorber on the hydraulic coil spring compressor.
35. Install the dust sleeve and the bump stop on the new shock absorber.
36. Install the spring on the shock absorber.
37. Compress the spring.
38. Install the upper strut mount and the strut mount bearing.
39. Tighten the shock strut piston rod nut.
Use a drive socket #21.
Use HEX No.H6.
Use a ratchet wrench.
Use a torque wrench.
Tighten it to 60 Nm torque.
AUTODOC recommends:
Check to make sure the spring is positioned correctly. Avoid its misalignment.
40. Install the shock strut mount cap.
41. Decompress the spring.
42. Remove the assembled shock strut.
43. Install the shock strut into the wheel arch.
44. Screw the top fastening of the shock strut mount
Use a drive socket #13.
Do not tighten it.
AUTODOC recommends:
To avoid injuries, hold the shock strut when screwing the fastening bolts in.
45. Treat the shock strut mounting seat on the steering knuckle.
Use a wire brush.
Use WD-40 spray.
46. Fix the shock absorber strut on the steering knuckle.
47. Raise the hydraulic transmission jack by 10-15 cm.
48. Install the fastening bolt.
49. Screw in the fastener that connects the shock strut to the steering knuckle.
Use a drive socket #18.
Use a combination spanner #18.
50. Clean the ball joint mounting seat.
Use a wire brush.
Use WD-40 spray.
51. Remove the support from under the steering knuckle.
AUTODOC recommends:
Lower the hydraulic transmission jack smoothly, without jerks, to avoid damaging assemblies and mechanisms.
52. Attach the front control arm to the steering knuckle.
Attach the rear control arm to the steering knuckle.
53. Connect the tie rod end to the steering knuckle.
54. Screw in the fastener connecting the ball joint of the rear control arm to the steering knuckle.
Use a drive socket #21.
55. Screw in the fastener connecting the ball joint of the front control arm to the steering knuckle.
Use a drive socket #21.
56. Screw on the fastening nut that connects the tie rod end to the steering knuckle.
Use a drive socket #21.
57. Tighten the ball joint fastener.
Use a drive socket #21.
Use a torque wrench.
Tighten it to 65 Nm torque.
58. Tighten the fastening nut connecting the tie rod end to the steering knuckle.
Use a drive socket #21.
Use a torque wrench.
Tighten it to 55 Nm torque.
59. Tighten the lower fasteners connecting the shock strut to the steering knuckle.
Use a drive socket #21.
Use a torque wrench.
Tighten it to 85 Nm torque.
60. Screw the rear fastener connecting the control arm to the subframe.
Use a combination spanner #18.
Use a torque wrench.
Tighten it to 85 Nm torque.
61. Secure the stabilizer link on the suspension strut.
Use a drive socket #17.
Use a torque wrench.
Tighten it to 65 Nm torque.
62. Treat the shock strut fasteners.
Use copper grease.
63. Treat the surface where the brake disc contacts the wheel rim.
Use copper grease.
64. Clean the brake disk surface.
Use a brake cleaner.
AUTODOC recommends:
After applying the spray, wait a few minutes.
65. Screw in the wheel bolts.
Use wheel impact socket #17.
AUTODOC recommends:
To avoid injury, hold up the wheel when screwing in the fastening bolts.
66. Tighten the upper fastener of the shock absorber strut mount.
Use a drive socket #13.
Use a torque wrench.
Tighten it to 38 Nm torque.
67. Lower the car and working in a cross order, tighten the wheel bolts.
Use a torque wrench.
Tighten it to 120 Nm torque.

4 Replies to “How to replace a front shock strut on BMW 330i 3 (E92) [TUTORIAL AUTODOC]”

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