How to carry out replacement: Control Arm 300 CE 3.0 (124.050) MERCEDES-BENZ COUPE (C124)
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Change MERCEDES-BENZ COUPE (C124) 300 CE 3.0 (124.050) Control Arm yourself – manuals and video tutorials

How to change front lower arm on MERCEDES-BENZ W124 Coupe (C124) – replacement guide

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Important!
This replacement procedure can be used for:
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) 220 CE (124.042), MERCEDES-BENZ W124 Coupe (C124) 230 CE (124.043), MERCEDES-BENZ W124 Coupe (C124) 300 CE-24 (124.051), MERCEDES-BENZ W124 Coupe (C124) 200 CE (124.040), MERCEDES-BENZ W124 Coupe (C124) 200 CE (124.041), MERCEDES-BENZ W124 Coupe (C124) 200 CE (124.041) … 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

All the parts you need to replace – Control Arm for W124 Coupe (C124) and other MERCEDES-BENZ models
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Tools
Replacement: front lower arm – MERCEDES-BENZ COUPE (C124). List of the tools you'll need:
Wire brush
WD-40 spray
All-purpose cleaning spray
Ceramic grease
Torque wrench
Combination spanner #18
Combination spanner #22
Drive socket # 13
Drive socket # 19
Drive socket # 22
Wheel impact socket #17
Ratchet wrench
Tap wrench
Hammer
Pin punch
Crow bar
Rubber mallet
Strut spring compressor
Hydraulic transmission jack
Wheel chock
Buy tools
Replacement: front lower arm – MERCEDES-BENZ COUPE (C124). AUTODOC experts recommend:
  • The replacement procedure is identical for the left and right lower control arms.
  • All work should be done with the engine stopped.
Replacement: front lower arm – MERCEDES-BENZ COUPE (C124). Recommended sequence of steps:
  1. Step 1
    Secure the wheels with chocks.
    Step 2
    How to change Control Arm on MERCEDES-BENZ COUPE (C124) 1987 - free PDF and video manuals
    Loosen the wheel bolts. Use wheel impact socket #17. Use a tap wrench.
  2. Step 3
    Raise the car.
    Replacement: front lower arm – MERCEDES-BENZ COUPE (C124). 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 4
    How to replace MERCEDES-BENZ W124 Coupe (C124) 300 CE 3.0 (124.050) 1988 Control Arm - step-by-step manuals and video guides
    Unscrew the wheel bolts.
    AUTODOC recommends:
    To avoid injury, hold up the wheel when unscrewing the bolts.
  3. Step 5
    MERCEDES-BENZ COUPE (C124) 300 CE-24 3.0 (124.051) 1989 Control Arm replacement: free workshop manuals
    Remove the wheel.
  4. Step 6
    Changing Control Arm on MERCEDES-BENZ W124 Coupe (C124) 300 CE 3.0 1990 by yourself
    Install the coil spring compressor on the coil spring.
    Replacement: front lower arm – MERCEDES-BENZ COUPE (C124). Professionals recommend:
    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.
  5. Step 7
    How to remove MERCEDES-BENZ Baureihe 123 230 CE Cat (124.043) 1991 Control Arm - online easy-to-follow instructions
    Compress the spring.
    AUTODOC recommends:
    Be careful. The compressed spring is powerful and can cause injury if it comes loose.
  6. Step 8
    How to replace Control Arm on MERCEDES-BENZ W124 Coupe (C124) 1992: download PDF manuals and video instructions
    Clean all joints of the arm. Use a wire brush. Use WD-40 spray.
  7. Step 9
    How hard is it to do yourself: Control Arm replacement on MERCEDES-BENZ COUPE (C124) 320 CE 3.2 (124.052) 1993 - download illustrated guide
    Make marks on the camber bolts.
  8. Step 10
    Need to know how to renew Control Arm on MERCEDES-BENZ Baureihe 123 1987? This free workshop manual will help you to do it yourself
    Unscrew the rear fastener of the control arm. Use a combination spanner #22. Use a drive socket #22. Use a ratchet wrench.
  9. Step 11
    Changing of Control Arm on MERCEDES-BENZ COUPE (C124) 1988 won't be an issue if you follow this illustrated step-by-step guide
    Unscrew the front fastener of the control arm. Use a combination spanner #22. Use a drive socket #22. Use a ratchet wrench.
  10. Step 12
    MERCEDES-BENZ Baureihe 123 300 CE 3.0 (124.050) Control Arm replacement: online guides and video tutorials
    Unscrew the fasteners connecting the anti-roll bar bracket to the control arm. Use a drive socket #13. Use a ratchet wrench.
  11. Step 13
    Replacing Control Arm on MERCEDES-BENZ COUPE (C124) 1990 300 CE 3.0 (124.050) by yourself
    Detach the anti-roll bar from the control arm.
  12. Step 14
    W124 Coupe (C124) 230 CE Cat (124.043) 1991 Control Arm DIY replacement workshop manual
    Unscrew the fastener connecting the ball joint to the steering knuckle. Use a combination spanner #18. Use a drive socket #19. Use a ratchet wrench.
  13. Step 15
    How to change Control Arm on MERCEDES-BENZ W124 Coupe (C124) 1992 - tips and tricks
    Remove the fastening bolt.
  14. Step 16
    Step-by-step recommendations for DIY replacement MERCEDES-BENZ COUPE (C124) 1993 230 CE Cat (124.043) Control Arm
    Disconnect the ball joint from the steering knuckle.
  15. Step 17
    DIY replacement of Control Arm on MERCEDES-BENZ W124 Coupe (C124) 230 CE 2.3 (124.043) 1987 is not an issue anymore with our step-by-step tutorial
    Remove the fastening bolts. Use a pin punch. Use a hammer.
  16. Step 18
    How to change Control Arm on MERCEDES-BENZ COUPE (C124) 1987 - free PDF and video manuals
    Remove the coil spring together with the coil spring compressor.
    Replacement: front lower arm – MERCEDES-BENZ COUPE (C124). Tip from AUTODOC experts:
    While the spring is compressed, do not do any operations on it.
  17. Step 19
    How to replace MERCEDES-BENZ W124 Coupe (C124) 300 CE 3.0 (124.050) 1988 Control Arm - step-by-step manuals and video guides
    Remove the control arm. Use a crowbar.
  18. Step 20
    MERCEDES-BENZ COUPE (C124) 300 CE-24 3.0 (124.051) 1989 Control Arm replacement: free workshop manuals
    Clean the suspension arm mounting seats. Use a wire brush. Use all-purpose cleaning spray.
  19. Step 21
    Changing Control Arm on MERCEDES-BENZ W124 Coupe (C124) 300 CE 3.0 1990 by yourself
    Install the new control arm.
    AUTODOC recommends:
    During the installation process, use only new bolts and nuts.
  20. Step 22
    How to remove MERCEDES-BENZ Baureihe 123 230 CE Cat (124.043) 1991 Control Arm - online easy-to-follow instructions
    Connect the ball joint to the steering knuckle.
  21. Step 23
    How to replace Control Arm on MERCEDES-BENZ W124 Coupe (C124) 1992: download PDF manuals and video instructions
    Install the fastening bolt.
  22. Step 24
    How hard is it to do yourself: Control Arm replacement on MERCEDES-BENZ COUPE (C124) 320 CE 3.2 (124.052) 1993 - download illustrated guide
    Support the control arm. Use a hydraulic transmission jack.
  23. Step 25
    Need to know how to renew Control Arm on MERCEDES-BENZ Baureihe 123 1987? This free workshop manual will help you to do it yourself
    Install the spring together with the compressor.
    Replacement: front lower arm – MERCEDES-BENZ COUPE (C124). Tip:
    Make sure that the coil spring is correctly positioned in its mounting seats.
  24. Step 26
    Changing of Control Arm on MERCEDES-BENZ COUPE (C124) 1988 won't be an issue if you follow this illustrated step-by-step guide
    Position the control arm according to its mounting holes. Use a rubber mallet.
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