How to change front coil springs on Mercedes W211 – replacement guide
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Important!
This replacement procedure can be used for:
MERCEDES-BENZ E-Class Saloon (W211) E 320 (211.065),
MERCEDES-BENZ E-Class Saloon (W211) E 270 CDI (211.016)
…
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The steps may slightly vary depending on the car design.
How to change front springs on MERCEDES-BENZ (W211) E-Class [TUTORIAL AUTODOC]
All the parts you need to replace – Springs for E-Class Saloon (W211) and other MERCEDES-BENZ models
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 – Mercedes W211 – should be done with the engine switched off.
Carry out replacement in the following order:
Step 1
Open the bonnet.
Step 2
Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
Step 3
Clean the fasteners of the shock strut upper mount. Use a wire brush. Use WD-40 spray.
Step 4
Loosen the upper fastener of the shock strut mount. Use a drive socket #13. Use a ratchet wrench.
Step 5
Secure the wheels with chocks.
Step 6
Loosen the wheel mounting bolts. Use wheel impact socket #17.
Step 7
Raise the front of the car and secure on supports.
Step 8
Unscrew the wheel bolts.
Replacement: coil springs – Mercedes W211. Tip from AUTODOC experts:
To avoid injury, hold up the wheel when unscrewing the bolts.
Step 9
Remove the wheel.
Step 10
Undo the fasteners of the oil pan lower cover. Use a drive socket #10. Use a ratchet wrench.
Step 11
Remove the oil pan cover.
Step 12
Clean all joints of the arm. Clean the shock strut fasteners. Clean the stabiliser link fasteners. Use a wire brush. Use WD-40 spray.
AUTODOC recommends:
Replacement: coil springs – Mercedes W211. After applying the spray, wait a few minutes.
Step 13
Unscrew the fastener connecting the shock strut to the suspension control arm. Use a combination spanner #21. Use a drive socket #21. Use a ratchet wrench.
Step 14
Remove the fastening bolt.
Step 15
Unscrew the arm fastening from the subframe. Use a combination spanner #21. Use a drive socket #E18. Use a ratchet wrench.
Step 16
Detach the control arm. Use a crowbar.
Step 17
Remove the fastening bolt. Use a pin punch. Use a hammer.
Step 18
Detach the bottom part of the shock strut. Use a crowbar.
Step 19
Unscrew the fastener connecting the stabilizer link to the stabilizer bar. Use a combination spanner #21. Use HEX No.H12. Use a ratchet wrench.
Step 20
Remove the stabilizer rod.
Step 21
Unscrew the top fastening of the shock strut mount.
AUTODOC recommends:
Important! Hold the suspension strut while unscrewing the fastening bolts. Mercedes W211
Step 22
Remove the suspension strut.
Step 23
Set the shock absorber strut on the spring compressor tool.
Replacement: coil springs – Mercedes W211. 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 24
Compress the spring.
Step 25
Remove the protective cap of the shock absorber mount.
Step 26
Treat the shock strut rod. Use a wire brush. Use WD-40 spray.
Step 27
Remove the strut piston rod nut. Use a drive socket #17. Use HEX No.H6. Use a ratchet wrench.
Step 28
Remove the top strut mount.
Step 29
Release the coil spring.
Step 30
Remove the spring.
Step 31
Remove the shock absorber dust cap and the bump stop.
AUTODOC recommends:
Replacement: coil springs – Mercedes W211. Carefully inspect the mount, the boot, and the bump stop of the shock absorber. Replace if necessary.
Step 32
Install the spring on the shock absorber.
Step 33
Install the boot and a bump stop onto the shock absorber.
Step 34
Compress the spring.
Step 35
Install the upper strut mount and the strut mount bearing.
Step 36
Tighten the shock strut piston rod nut. Use a shock absorber socket #DD6. Use a drive socket #18. Use a torque wrench. Tighten it to 23 Nm torque.
Replacement: coil springs – Mercedes W211. Tip:
Check to make sure the spring is positioned correctly. Avoid its misalignment.
Step 37
Treat the shock strut rod. Use copper grease.
Step 38
Install the protective shock absorber mounting cap.
Step 39
Decompress the spring.
Step 40
Remove the assembled shock strut.
Step 41
Clean the mounting seats of the shock strut.
Step 42
Clean the mounting seats and the thread of the suspension arm. Use a wire brush. Use WD-40 spray.
Step 43
Install the shock strut into the wheel arch.
Step 44
Screw the top fastening of the shock strut mount.
AUTODOC recommends:
Important! Hold the suspension strut while screwing in the fastening bolts. Mercedes W211
Step 45
Ιnstall the transverse stabilizer link.
Step 46
Tighten the stabiliser link fastener. Use a combination spanner #21. Use HEX No.H12. Use a ratchet wrench.
Step 47
Attach the bottom part of the shock strut.
Step 48
Install the fastening bolt.
Step 49
Attach the control arm.
Step 50
Support the arm. Use a crowbar. Use a hydraulic transmission jack.
Step 51
Install the fastening bolt.
Step 52
Remove the support from under the arm.
AUTODOC recommends:
Replacement: coil springs – Mercedes W211. Lower the transmission jack smoothly, without jerks, to avoid damaging components and mechanisms.
Step 53
Support the arm. Use a hydraulic transmission jack.
Step 54
Screw the fastener connecting the control arm to the subframe. Use a combination spanner #21. Use a drive socket #E18. Use a ratchet wrench.
Step 55
Tighten the arm fastening to the subframe. Use a combination spanner #21. Use a drive socket #E18. Use a torque wrench. Tighten it to 80 Nm torque.+120°
AUTODOC recommends:
Important! Be sure to use new fasteners.
Step 56
Tighten the fastener connecting the shock strut to the suspension control arm. Use a combination spanner #21. Use a drive socket #21. Use a torque wrench. Tighten it to 165 Nm torque.
Step 57
Tighten the fastener connecting the stabilizer link to the stabilizer bar. Use a drive socket #21. Use a torque wrench. Tighten it to 62 Nm torque.
Step 58
Remove the support from under the arm.
AUTODOC recommends:
Replacement: coil springs – Mercedes W211. Lower the transmission jack smoothly, without jerks, to avoid damaging components and mechanisms.
Step 59
Treat the shock strut fasteners.
Step 60
Treat all joints of the stabiliser link.
Step 61
Treat all joints of the arm. Use copper grease.
Step 62
Reinstall the oil pan lower cover.
Step 63
Tighten the fasteners of the oil pan lower cover. Use a drive socket #10. Use a ratchet wrench.
Step 64
Treat the surface where the brake disc contacts the wheel rim. Use copper grease.
Step 65
Clean the brake disk surface. Use a brake cleaner.
AUTODOC recommends:
Replacement: coil springs – Mercedes W211. After applying the spray, wait a few minutes.
Step 66
Install the wheel.
AUTODOC recommends:
Warning! To avoid injury, hold the wheel while screwing in the fastening bolts on the car. Mercedes W211
Step 67
Screw in the wheel bolts. Use wheel impact socket #17.
Step 68
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 130 Nm torque.
Step 69
Remove the jacks and chocks.
Step 70
Tighten the upper fastener of the shock absorber strut mount. Use a drive socket #13. Use a torque wrench. Tighten it to 30 Nm torque.
Step 71
Treat the fasteners of the shock strut mount. Use copper grease.
Step 72
Remove the fender protection cover.
Step 73
Close the hood.
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