How to change front coil springs on BMW E90 – replacement guide
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Important!
This replacement procedure can be used for:
BMW 3 Saloon (E90) 318 d,
BMW 3 Saloon (E90) 320 i,
BMW 3 Saloon (E90) 325 i,
BMW 3 Saloon (E90) 330 i,
BMW 3 Saloon (E90) 320 d,
BMW 3 Saloon (E90) 318 d,
BMW 3 Saloon (E90) 320 si,
BMW 3 Saloon (E90) 320 d,
BMW 3 Saloon (E90) 318 i,
BMW 3 Saloon (E90) 318 d,
BMW 3 Saloon (E90) 325 i,
BMW 3 Saloon (E90) 320 i,
BMW 3 Saloon (E90) 320 d,
BMW 3 Saloon (E90) 330 i,
BMW 3 Saloon (E90) 316 i,
BMW 3 Saloon (E90) 316 i,
BMW 3 Saloon (E90) 316 d,
BMW 3 Saloon (E90) 320 d,
BMW 3 Saloon (E90) 320 i,
BMW 3 Saloon (E90) 325 i,
BMW 3 Saloon (E90) 318 i,
BMW 3 Saloon (E90) 325 i,
BMW 3 Saloon (E90) 330 i,
BMW 3 Saloon (E90) 320 i
…
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The steps may slightly vary depending on the car design.
How to change front springs on BMW 3 E90 TUTORIAL | AUTODOC
All the parts you need to replace – Springs for 3 Saloon (E90) and other BMW models
Replacement: coil springs – BMW E90. 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.
Please note: all work on the car – BMW E90 – should be done with the engine switched off.
Carry out replacement in the following order:
Step 1
Secure the wheels with chocks.
Step 2
Loosen the wheel mounting bolts. Use wheel impact socket #17.
Step 3
Raise the front of the car and secure on supports.
Step 4
Unscrew the wheel bolts.
AUTODOC recommends:
Warning! To avoid injury, hold the wheel while unscrewing the fastening bolts. BMW E90
Step 5
Remove the wheel.
Step 6
Clean the stabiliser link fasteners. Use a wire brush. Use WD-40 spray.
Step 7
Unscrew the fastener connecting the stabilizer link to the shock strut. Use a combination spanner #15. Use a drive socket #17. Use a ratchet wrench.
Step 8
Remove the stabilizer rod.
Step 9
Disconnect the ABS sensor wiring. Use a flat screwdriver.
Step 10
Clean the fastener connecting the tie rod end to the steering knuckle. Use a wire brush. Use WD-40 spray.
Step 11
Unscrew the end fastening nut to the steering knuckle. Use a combination spanner #22. Use Torx T45. Use a ratchet wrench.
Step 12
Disconnect the tie rod end from the steering knuckle.
Step 13
Clean the fasteners connecting the control arm to the subframe. Use a wire brush. Use WD-40 spray.
Step 14
Loosen the front fastener of the control arm. Use a combination spanner #18.
Step 15
Unscrew the rear fastener connecting the control arm to the subframe. Use a combination spanner #18 (2 pieces).
Step 16
Remove the rear fastener of the control arm.
Step 17
Clean the fasteners connecting the shock strut to the steering knuckle. Use a wire brush. Use WD-40 spray.
Step 18
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.
Step 19
Remove the fastening bolt.
Step 20
Release the lower fastener connecting the shock strut to the steering knuckle. Use a flat metal-working chisel. Use a hammer.
Step 21
Disconnect the steering knuckle from the shock absorber strut.
Replacement: coil springs – BMW E90. Tip from AUTODOC experts:
Make sure that the steering knuckle is supported.
Step 22
Lower the car.
Step 23
Open the bonnet.
Step 24
Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
Step 25
Clean the fasteners of the shock strut upper mount. Use a wire brush. Use WD-40 spray.
Step 26
Unscrew the top fastening of the shock strut mount. Use a combination spanner #13. Use a drive socket #13. Use a ratchet wrench.
AUTODOC recommends:
Important! Hold the suspension strut while unscrewing the fastening bolts. BMW E90
Step 27
Remove the suspension strut.
Step 28
Set the shock absorber strut on the spring compressor tool.
Replacement: coil springs – BMW E90. Tip from AUTODOC experts:
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 29
Compress the spring.
Step 30
Remove the shock strut mount cap. Use a flat screwdriver.
Step 31
Treat the shock strut rod. Use a wire brush. Use WD-40 spray.
Step 32
Remove the strut piston rod nut. Use a drive socket #21. Use a ratchet wrench.
Step 33
Release the coil spring.
Step 34
Remove the top strut mount. Use a flat screwdriver.
Step 35
Remove the shock absorber dust cap and the bump stop.
AUTODOC recommends:
Replacement: coil springs – BMW E90. Carefully inspect the mount, the boot, and the bump stop of the shock absorber. Replace if necessary.
Step 36
Remove the spring.
Step 37
Install the spring on the shock absorber.
Step 38
Install the boot and a bump stop onto the shock absorber.
Step 39
Compress the spring.
Step 40
Install the upper strut mount and the strut mount bearing. Use a flat screwdriver.
Step 41
Tighten the shock strut piston rod nut. Use a drive socket #21. Use a torque wrench. Tighten it to 64 Nm torque.
Replacement: coil springs – BMW E90. Tip from AUTODOC:
Check to make sure the spring is positioned correctly. Avoid its misalignment.
Step 42
Install the shock strut mount cap.
Step 43
Decompress the spring.
Step 44
Remove the assembled shock strut.
Step 45
Install the shock strut into the wheel arch.
Step 46
Screw the top fastening of the shock strut mount.
AUTODOC recommends:
BMW E90 – To avoid injury, hold the suspension strut while screwing in the fastening bolts.
Step 47
Tighten the upper fastener of the shock absorber strut mount. Use a combination spanner #13. Use a drive socket #13. Use a torque wrench. Tighten it to 34 Nm torque.
Step 48
Remove the fender protection cover.
Step 49
Close the hood.
Step 50
Raise the front of the car and secure on supports.
Step 51
Treat the shock strut mounting seat on the steering knuckle. Use a wire brush. Use WD-40 spray.
Step 52
Fix the shock absorber strut on the steering knuckle. Use a flat metal-working chisel. Use a hammer.
Step 53
Install the fastening bolt.
Step 54
Tighten the lower fasteners connecting the shock strut to the steering knuckle. Use a combination spanner #18. Use a drive socket #18. Use a torque wrench. Tighten it to 81 Nm torque.
Step 55
Connect the ABS sensor wiring.
Step 56
Install the rear fastener of the control arm.
Step 57
Screw the rear fastener connecting the control arm to the subframe. Use a combination spanner #18 (2 pieces).
Step 58
Ιnstall the transverse stabilizer link.
Step 59
Tighten the fastener connecting the stabilizer link to the shock strut. Use a combination spanner #15. Use a drive socket #17. Use a torque wrench. Tighten it to 58 Nm torque.
Step 60
Treat the shock strut fasteners. Use copper grease.
Step 61
Connect the tie rod end to the steering knuckle.
Step 62
Tighten the fastening nut connecting the tie rod end to the steering knuckle. Use a combination spanner #22. Use Torx T45. Use a torque wrench. Tighten it to 165 Nm torque.
AUTODOC recommends:
Important! Be sure to use new fasteners.
Step 63
Prop up the steering knuckle. Use a hydraulic transmission jack.
Step 64
Tighten the front fastener connecting the control arm to the subframe. Use a combination spanner #18. Use a torque wrench. Tighten it to 68 Nm torque.+90°
AUTODOC recommends:
Important! Be sure to use new fasteners.
Step 65
Tighten the rear fastener of the control arm. Use a combination spanner #18 (2 pieces). Use a torque wrench. Tighten it to 68 Nm torque.+90°
AUTODOC recommends:
Important! Be sure to use new fasteners.
Step 66
Treat all joints of the arm. Use copper grease.
Step 67
Remove the support from under the steering knuckle.
AUTODOC recommends:
BMW E90 – Do not lower the transmission jack sharply to avoid damaging components and mechanisms of the car.
Step 68
Treat the surface where the brake disc contacts the wheel rim. Use copper grease.
Step 69
Clean the brake disk surface. Use a brake cleaner.
AUTODOC recommends:
Replacement: coil springs – BMW E90. After applying the spray, wait a few minutes.
Step 70
Install the wheel.
AUTODOC recommends:
Warning! To avoid injury, hold the wheel while screwing in the fastening bolts on the car. BMW E90
Step 71
Screw in the wheel bolts. Use wheel impact socket #17.
Step 72
Lower the car and working in a cross order, tighten the wheel bolts. Use wheel impact socket #17. Use a torque wrench. Tighten it to 120 nm torque.
Step 73
Remove the jacks and chocks.
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