How to change front suspension strut on MERCEDES-BENZ W124 Coupe (C124) – replacement guide
MERCEDES-BENZ W124 Coupe (C124) 230 CE (124.043), MERCEDES-BENZ W124 Coupe (C124) 300 CE, MERCEDES-BENZ W124 Coupe (C124) 300 CE-24 (124.051), MERCEDES-BENZ W124 Coupe (C124) 230 CE Cat (124.043), MERCEDES-BENZ W124 Coupe (C124) 300 CE (124.050), MERCEDES-BENZ W124 Coupe (C124) 320 CE (124.052), MERCEDES-BENZ W124 Coupe (C124) 220 CE (124.042), MERCEDES-BENZ W124 Coupe (C124) 230 CE (124.043), MERCEDES-BENZ W124 Coupe (C124) 300 CE-24 (124.051) … View more
The steps may slightly vary depending on the car design.
This video shows the replacement procedure of a similar car part on another vehicle

- Both shock struts of the front suspension should be replaced simultaneously.
- The replacement procedure is identical for the left and right shock struts of the front suspension.
- All work should be done with the engine stopped.
- 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 absorber upper mount. Use a wire brush. Use WD-40 spray.
- Step 4

Clean the shock absorber rod fastener. Use a wire brush. Use WD-40 spray.
- Step 5

Loosen the fasteners of the upper strut mount. Use a drive socket #13. Use a ratchet wrench.
AUTODOC recommends:Don't unscrew it completely.
- Step 6

Loosen the fastener of the strut piston rod. Use a combination spanner #22. Use HEX No.H7. Use a ratchet wrench.
Replacement: suspension strut – MERCEDES-BENZ COUPE (C124). Tip:Don't unscrew it completely.
- Step 7
Secure the wheels with chocks.
Step 8
Loosen the wheel bolts. Use wheel impact socket #17. Use a tap wrench.
- Step 9
Raise the car.
AUTODOC recommends:If you are using a jack, make sure it rests on a flat surface without any unevenness.Be sure to additionally secure the car with jack stands.
Step 10
Unscrew the wheel bolts.
AUTODOC recommends:Warning! To avoid injury, hold the wheel while unscrewing the fastening bolts. MERCEDES-BENZ COUPE (C124)
- Step 11

Remove the wheel.
- Step 12

Support the steering knuckle. Use a hydraulic transmission jack.
- Step 13

Install the coil spring compressor on the coil spring.
AUTODOC recommends:Use adapters and jaws of the appropriate size.The sping coils should be securely fixed with the coil spring compressor.Use high quality coil spring compressors.
- Step 14

Compress the spring.
Replacement: suspension strut – MERCEDES-BENZ COUPE (C124). AUTODOC recommends:Be careful. The compressed spring is powerful and can cause injury if it comes loose.
- Step 15

Clean the shock absorber fasteners. Use a wire brush. Use WD-40 spray.
- Step 16

Disconnect the wiring from the strut.
- Step 17

Unscrew the lower fasteners on the shock absorber. Use a drive socket #19. Use a ratchet wrench.
- Step 18

Remove the fastening bolts.
- Step 19

Detach the strut from the steering knuckle. Use a crowbar.
- Step 20

Clean the fasteners of the stabilizer bush brackets. Use a wire brush. Use WD-40 spray.
- Step 21

Unscrew the fasteners of the stabilizer bush brackets. Use a combination spanner #13. Use a drive socket #13. Use a ratchet wrench.
- Step 22

Remove the fastening bolts.
- Step 23

Remove the stabilizer bush brackets.
- Step 24

Remove the coil spring together with the coil spring compressor.
Replacement: suspension strut – MERCEDES-BENZ COUPE (C124). AUTODOC experts recommend:While the spring is compressed, do not do any operations on it.
- Step 25

Remove the fastener of the shock absorber piston rod. Use a combination spanner #22. Use HEX No.H7. Use a ratchet wrench.
- Step 26

Unscrew the fasteners of the upper strut mount. Use a drive socket #13. Use a ratchet wrench.
- Step 27

Remove the shock absorber.
- Step 28

Remove the strut mount.
- Step 29

Remove the shock absorber dust boot and bump stop.
AUTODOC recommends:Carefully inspect the dust boot and bump stop of the suspension strut. Replace them if necessary.
- Step 30

Decompress the spring.
- Step 31

Install the coil spring compressor on the coil spring.
- Step 32

Compress the spring.
AUTODOC recommends:Be careful. The compressed spring is powerful and can cause injury if it comes loose.
- Step 33

Clean the coil spring mounting seats. Use a wire brush. Use all-purpose cleaning spray.
- Step 34

Clean the shock absorber mounting seats. Use a wire brush. Use all-purpose cleaning spray.
- Step 35

Clean the mounting seat of the suspension strut mount. Use a wire brush. Use all-purpose cleaning spray.
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