Replacement: coil springs – Audi A6 4F2. AUTODOC recommends:
Both coil springs of the front suspension should be replaced simultaneously.
The replacement procedure is identical for the left and right coil springs of the front suspension.
All work should be done with the engine stopped.
Replacement: coil springs – Audi A6 4F2. Take the following steps:
Step 1
Open the bonnet.
Step 2
Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
Step 3
Remove the cowl grille seal.
Step 4
Raise up and remove the cowl grille.
Step 5
Remove the shock strut mount cap. Use a crowbar.
Step 6
Loosen the upper fastener of the shock strut mount. Use a drive socket #15. Use a ratchet wrench.
Step 7
Secure the wheels with chocks.
Step 8
Loosen the wheel mounting bolts. Use wheel impact socket #17.
Step 9
Raise the front of the car and secure on supports.
Step 10
Unscrew the wheel bolts.
Replacement: coil springs – Audi A6 4F2. Tip from AUTODOC experts:
To avoid injury, hold up the wheel when unscrewing the bolts.
Step 11
Remove the wheel.
Step 12
Clean all joints of the arm. Use a wire brush. Use WD-40 spray.
Step 13
Unscrew the upper control arm fasteners (2 pieces). Use a combination spanner #18 (2 pieces). Use a drive socket #18.
Step 14
Remove the fastening bolt.
Step 15
Release the fastener that connects the control arm ball joint to the steering knuckle. Use a flat metal-working chisel. Use a hammer.
Step 16
Detach the upper control arm from the steering knuckle. Use a crowbar.
Step 17
Clean the fastening bolt that connects the shock absorber fork with the lower control arm.
Use a wire brush. Use WD-40 spray.
Step 18
Unscrew the fastener connecting the shock strut to the suspension control arm. Use a combination spanner #18 (2 pieces).
Step 19
Remove the fastening bolt.
Step 20
Clean the stabiliser link fasteners. Use a wire brush. Use WD-40 spray.
Step 21
Unscrew the fasteners connecting the stabiliser link to the stabiliser bar. Use a combination spanner #16. Use a drive socket #16. Use a ratchet wrench.
Step 22
Remove the stabilizer rod. Use a crowbar.
Step 23
Detach the fastener that connects the shock strut to the control arm. Use a crowbar.
Step 24
Unscrew the top fastening of the shock strut mount. Use a drive socket #15.
AUTODOC recommends:
Important! Hold the suspension strut while unscrewing the fastening bolts. Audi A6 4F2
Step 25
Remove the suspension strut.
Step 26
Make marks on the control arms and the shock strut mount.
Step 27
Unscrew the fasteners connecting the control arms to the shock strut mount. Use a combination spanner #18 (2 pieces).
Step 28
Remove the control arms.
Step 29
Set the shock absorber strut on the spring compressor tool.
Replacement: coil springs – Audi A6 4F2. Professionals recommend:
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.
Step 30
Compress the spring.
Step 31
Treat the shock strut rod. Use a wire brush. Use WD-40 spray.
Step 32
Remove the strut piston rod nut. Use HEX No.H6. Use a drive socket #21. Use a ratchet wrench.
Step 33
Remove the top strut mount. Use a crowbar.
Step 34
Release the coil spring.
Step 35
Remove the spring.
Step 36
Remove the shock absorber dust cap and the bump stop.
AUTODOC recommends:
Replacement: coil springs – Audi A6 4F2. Carefully inspect the mount, the boot, and the bump stop of the shock absorber. Replace if necessary.
Step 37
Install the spring on the shock absorber.
Step 38
Install the dust sleeve and the bump stop on the new shock absorber.
Step 39
Install the upper strut mount and the strut mount bearing.
Step 40
Compress the spring.
Step 41
Tighten the shock strut piston rod nut. Use HEX No.H6. Use a drive socket #21. Use a torque wrench. Tighten it to 50 nm torque.
Replacement: coil springs – Audi A6 4F2. Tip:
Check to make sure the spring is positioned correctly. Avoid its misalignment.
Step 42
Decompress the spring.
Step 43
Remove the assembled shock strut.
Step 44
Install the control arms.
Replacement: coil springs – Audi A6 4F2. Tip from AUTODOC:
Position the control arm according to its mounting holes.
Step 45
Screw in the fasteners connecting the control arms to the shock strut mount. Use a combination spanner #18 (2 pieces).
Step 46
Tighten the fastener connecting the control arms to the shock strut mount. Use a combination spanner #18. Use a drive socket #18. Use a torque wrench. Tighten it to 50 Nm torque.+90°
AUTODOC recommends:
Important! Be sure to use new fasteners.
Step 47
Treat the shock strut rod. Use copper grease.
Step 48
Install the shock strut into the wheel arch.
Step 49
Screw the top fastening of the shock strut mount. Do not tighten it.
Replacement: coil springs – Audi A6 4F2. AUTODOC experts recommend:
To avoid injuries, hold the shock strut when screwing the fastening bolts in.
Step 50
Support the arm. Use a hydraulic transmission jack.
Step 51
Install the fastening bolt.
Step 52
Tighten the fastener connecting the shock strut to the suspension control arm. Use a combination spanner #18 (2 pieces). Use a torque wrench. Tighten it to 90 Nm torque.+90°
AUTODOC recommends:
Important! Be sure to use new fasteners.
Step 53
Clean the mounting seats and the thread of the suspension arm. Use a wire brush. Use WD-40 spray.
Step 54
Release the fastener that connects the control arm ball joint to the steering knuckle. Use a flat metal-working chisel. Use a hammer.
Step 55
Treat all joints of the arm. Use copper grease.
Step 56
Attach the upper control arm to the steering knuckle.
Step 57
Install the fastening bolt.
Step 58
Tighten the upper control arm fasteners (2 pieces). Use a combination spanner #18. Use a drive socket #18. Use a torque wrench. Tighten it to 45 nm torque.
Step 59
Ιnstall the transverse stabilizer link.
Step 60
Tighten the fastener connecting the stabilizer link to the stabilizer bar. Use a drive socket #16. Use a torque wrench. Tighten it to 40 Nm torque.+90°
AUTODOC recommends:
Important! Be sure to use new fasteners.
Step 61
Remove the support from under the arm.
AUTODOC recommends:
Replacement: coil springs – Audi A6 4F2. Lower the transmission jack smoothly, without jerks, to avoid damaging components and mechanisms.
Step 62
Treat all joints of the arm. Treat the shock strut fasteners. Use copper grease.
Step 63
Clean the wheel rim mounting seat. Use a wire brush. Treat the contacting surface. Use copper grease.
Step 64
Clean the brake disk surface. Use a brake cleaner.
AUTODOC recommends:
After applying the spray, wait a few minutes.
Step 65
Install the wheel.
AUTODOC recommends:
Important! Hold the wheel while screwing in the fastening bolts. Audi A6 4F2
Step 66
Screw in the wheel bolts. Use wheel impact socket #17.
Step 67
Lower the car.
Step 68
Tighten the upper fastener of the shock absorber strut mount. Use a drive socket #15. Use a torque wrench. Tighten it to 50 Nm torque.+90°
AUTODOC recommends:
Important! Be sure to use new fasteners.
Step 69
Install the shock strut mount cap.
Step 70
Install and secure the cowl grille.
Step 71
Install the cowl grille seal.
Step 72
Tighten the wheel bolts using a criss-cross pattern. Use a torque wrench. Tighten it to 120 Nm torque.
Step 73
Remove the jacks and chocks.
Step 74
Remove the fender protection cover.
Step 75
Close the hood.
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