Important!
This replacement procedure can be used for:
MERCEDES-BENZ C-Class Saloon (W203) C 180 (203.035), MERCEDES-BENZ C-Class Saloon (W203) C 200 Kompressor (203.045), MERCEDES-BENZ C-Class Saloon (W203) C 320 (203.064), MERCEDES-BENZ C-Class Saloon (W203) C 200 CDI (203.004), MERCEDES-BENZ C-Class Saloon (W203) C 270 CDI (203.016), MERCEDES-BENZ C-Class Saloon (W203) C 220 CDI (203.006, 203.008), MERCEDES-BENZ C-Class Saloon (W203) C 180 Kompressor (203.046), MERCEDES-BENZ C-Class Saloon (W203) C 200 Kompressor (203.042), MERCEDES-BENZ C-Class Saloon (W203) C 200 CDI (203.007), MERCEDES-BENZ C-Class Saloon (W203) C 200 CGI Kompressor (203.043), MERCEDES-BENZ C-Class Saloon (W203) C 230 Kompressor (203.040), MERCEDES-BENZ C-Class Saloon (W203) C 220 CDI (203.008), MERCEDES-BENZ C-Class Saloon (W203) C 320 CDI (203.020), MERCEDES-BENZ C-Class Saloon (W203) C 280 (203.054), MERCEDES-BENZ C-Class Saloon (W203) C 350 (203.056), MERCEDES-BENZ C-Class Saloon (W203) C 230 (203.052) View more

The steps may slightly vary depending on the car design.

How to change front suspension arm on MERCEDES-BENZ W203 C-Class [TUTORIAL AUTODOC]

video
All the parts you need to replace – Control Arm for C-Class Saloon (W203) and other MERCEDES-BENZ models
Tools
Replacement: front lower arm – Mercedes W203. Tools you might need:
Wire brush
WD-40 spray
Brake cleaner
Copper grease
Torque wrench
Combination spanner #21
Combination spanner #22
Drive socket # 8
Drive socket # 21
Wheel impact socket #17
Ratchet wrench
Ball joint puller
Hydraulic transmission jack
Wheel chock
Replacement: front lower arm – Mercedes W203. AUTODOC recommends:
  • The replacement procedure is identical for the left and right lower control arms.
  • Please note: all work on the car – Mercedes W203 – should be done with the engine switched off.
Carry out replacement in the following order:
  1. Step 1
    How to change Control Arm on Mercedes W203 2000 - free PDF and video manuals
    Secure the wheels with chocks.
  2. Step 2
    How to replace MERCEDES-BENZ C-Class Saloon (W203) C 220 CDI (203.006, 203.008) 2001 Control Arm - step-by-step manuals and video guides
    Loosen the wheel mounting bolts. Use wheel impact socket #17.
  3. Step 3
    Mercedes W203 C 180 1.8 Kompressor (203.046) 2002 Control Arm replacement: free workshop manuals
    Raise the front of the car and secure on supports.
  4. Step 4
    Changing Control Arm on MERCEDES-BENZ C-Class Saloon (W203) C 200 CDI (203.004) 2003 by yourself
    Unscrew the wheel bolts.
    AUTODOC recommends:
    Warning! To avoid injury, hold the wheel while unscrewing the fastening bolts. Mercedes W203
  5. Step 5
    How to remove MERCEDES-BENZ C-CLASS C 200 CDI 2.2 (203.007) 2004 Control Arm - online easy-to-follow instructions
    Remove the wheel.
  6. Step 6
    How to replace Control Arm on MERCEDES-BENZ C-Class Saloon (W203) 2005: download PDF manuals and video instructions
    Undo the fasteners of the oil pan lower cover. Use a drive socket #8. Use a ratchet wrench.
  7. Step 7
    How hard is it to do yourself: Control Arm replacement on Mercedes W203 C 200 2.0 Kompressor (203.045) 2006 - download illustrated guide
    Remove the oil pan cover.
  8. Step 8
    Need to know how to renew Control Arm on MERCEDES-BENZ C-CLASS 2007? This free workshop manual will help you to do it yourself
    Clean all joints of the arm. Use a wire brush. Use WD-40 spray.
    AUTODOC recommends:
    Replacement: front lower arm – Mercedes W203. After applying the spray, wait a few minutes.
  9. Step 9
    Changing of Control Arm on Mercedes W203 2000 won't be an issue if you follow this illustrated step-by-step guide
    Unscrew the fastener connecting the control arm to the subframe. Use a combination spanner #21. Use a drive socket #21. Use a ratchet wrench.
  10. Step 10
    MERCEDES-BENZ C-CLASS C 200 1.8 Kompressor (203.042) Control Arm replacement: online guides and video tutorials
    Clean all joints of the arm. Use a wire brush. Use WD-40 spray.
    AUTODOC recommends:
    Replacement: front lower arm – Mercedes W203. After applying the spray, wait a few minutes.
  11. Step 11
    Replacing Control Arm on Mercedes W203 2002 C 220 CDI (203.006, 203.008) by yourself
    Unscrew the fastener connecting the ball joint to the steering knuckle. Use a combination spanner #21.
  12. Step 12
    C-Class Saloon (W203) C 200 CDI 2.2 (203.007) 2003 Control Arm DIY replacement workshop manual
    Disconnect the ball joint from the steering knuckle. Use a ball joint puller.
  13. Step 13
    How to change Control Arm on MERCEDES-BENZ C-Class Saloon (W203) 2004 - tips and tricks
    Remove the fastening bolt.
  14. Step 14
    Step-by-step recommendations for DIY replacement Mercedes W203 2005 C 200 CDI 2.2 (203.007) Control Arm
    Remove the arm.
  15. Step 15
    DIY replacement of Control Arm on MERCEDES-BENZ C-Class Saloon (W203) C 220 CDI (203.008) 2006 is not an issue anymore with our step-by-step tutorial
    Clean the mounting seats and the thread of the suspension arm. Use a wire brush. Use WD-40 spray.
  16. Step 16
    How to change Control Arm on Mercedes W203 2000 - free PDF and video manuals
    Install a new arm.
    Replacement: front lower arm – Mercedes W203. Professionals recommend:
    During the installation process, use only new bolts and nuts.Do not damage the ball joint cover.
  17. Step 17
    How to replace MERCEDES-BENZ C-Class Saloon (W203) C 220 CDI (203.006, 203.008) 2001 Control Arm - step-by-step manuals and video guides
    Install the fastening bolt.
  18. Step 18
    Mercedes W203 C 180 1.8 Kompressor (203.046) 2002 Control Arm replacement: free workshop manuals
    Connect the ball joint to the steering knuckle.
  19. Step 19
    Changing Control Arm on MERCEDES-BENZ C-Class Saloon (W203) C 200 CDI (203.004) 2003 by yourself
    Screw the fastener connecting the ball joint to the steering knuckle. Use a combination spanner #22.
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DIY MERCEDES-BENZ C-Class Saloon (W203) Control Arm replacement - online guide
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