Important!
This replacement procedure can be used for:
MERCEDES-BENZ M-Class (W163) ML 270 CDI (163.113)

The steps may slightly vary depending on the car design.

How to replace upper rear suspension arm on MERCEDES-BENZ M W163 TUTORIAL | AUTODOC

Required tools:
Required tools:
Wire brush
WD-40 spray
Brake cleaner
Copper grease
Combination spanner #13
Combination spanner #18
Combination spanner #19
Combination spanner #21
Impact socket №10
Impact socket №13
Impact socket №21
Wheel impact socket #17
Ratchet wrench
Torque wrench
Hammer
Flat Screwdriver
Hydraulic transmission jack
Wheel chock
AUTODOC recommends:
  • The replacement procedure is identical for the right and left upper control arms.
  • All work should be done with the engine stopped.
Carry out replacement in the following order:
  1. How to change Control Arm on ML W163 1998 - free PDF and video manuals
    Step 1
    Secure the wheels with chocks.
    Step 2
    Loosen the wheel mounting bolts.Use wheel impact socket #17.
  2. How to replace MERCEDES-BENZ M-Class (W163) ML 270 CDI 2.7 (163.113) 1999 Control Arm - step-by-step manuals and video guides
    Step 3
    Raise the rear of the car and secure on supports.
    Step 4
    Unscrew the wheel bolts.
    AUTODOC recommends:
    To avoid injury, hold up the wheel when unscrewing the bolts.
    Step 5
    Remove the wheel.
  3. ML W163 ML 320 3.2 (163.154) 2000 Control Arm replacement: free workshop manuals
    Step 6
    Unscrew the ABS sensor fastening from the steering knuckle.Use a drive socket #10.Use a ratchet wrench.
  4. Changing Control Arm on MERCEDES-BENZ M-Class (W163) ML 55 AMG 5.4 (163.174) 2001 by yourself
    Step 7
    Clean the fastener connecting the ball joint to the steering knuckle.Use a wire brush.Use WD-40 spray.
    Step 8
    Unscrew the top fastening of the ball joint.Use a combination spanner #19.
  5. How to remove MERCEDES-BENZ M-CLASS ML 430 4.3 (163.172) 2002 Control Arm - online easy-to-follow instructions
    Step 9
    Disconnect the ball joint from the steering knuckleUse a hammer.
  6. How to replace Control Arm on MERCEDES-BENZ M-Class (W163) 2003: download PDF manuals and video instructions
    Step 10
    Remove the shock strut mount cap.Use a flat screwdriver.
  7. How hard is it to do yourself: Control Arm replacement on ML W163 ML 500 5.0 (163.175) 2004 - download illustrated guide
    Step 11
    Clean the fasteners of the shock strut upper mount. Use a wire brush.Use WD-40 spray.
    Step 12
    Loosen the upper fastener of the shock strut mount.Use a combination spanner #13.Use a drive socket #13.Use a ratchet wrench.
  8. Need to know how to renew Control Arm on MERCEDES-BENZ M-CLASS ? This free workshop manual will help you to do it yourself
    Step 13
    Clean the stabiliser link fasteners.Use a wire brush.Use WD-40 spray.
    Step 14
    Unscrew the fastener connecting the stabilizer link to the control arm.Use a combination spanner #13 (2 pieces).
  9. Changing of Control Arm on ML W163 1998 won't be an issue if you follow this illustrated step-by-step guide
    Step 15
    Unscrew the fasteners connecting the stabiliser link to the stabiliser bar.Use a combination spanner #13.
  10. MERCEDES-BENZ M-CLASS ML 350 3.7 (163.157) Control Arm replacement: online guides and video tutorials
    Step 16
    Unscrew the front arm fastener. Use a combination spanner #18 (2 pieces).
  11. Replacing Control Arm on ML W163 2000 ML 270 CDI 2.7 (163.113) by yourself
    Step 17
    Remove the fastening bolt. Use a hammer.
    Step 18
    Unscrew the rear fastener connecting the control arm to the subframe.Use a combination spanner #18 (2 pieces).
  12. M-Class (W163) ML 430 4.3 (163.172) 2001 Control Arm DIY replacement workshop manual
    Step 19
    Unscrew the lower arm fastening.Use a combination spanner #21.Use a drive socket #21.Use a ratchet wrench.
    Step 20
    Remove the fastening bolts.
    Step 21
    Detach the lower control arm.
  13. How to change Control Arm on MERCEDES-BENZ M-Class (W163) 2002 - tips and tricks
    Step 22
    Remove the fastening bolt.
    Step 23
    Remove the upper control arm.
  14. Step-by-step recommendations for DIY replacement ML W163 2003 ML 430 4.3 (163.172) Control Arm
    Step 24
    Clean the mounting seats and the thread of the suspension arm. Use a wire brush.Use WD-40 spray.
    Step 25
    Install a new upper control arm.
    AUTODOC recommends:
    During the installation process, use only new bolts and nuts.Do not damage the ball joint cover.Position the control arm according to its mounting holes.
  15. DIY replacement of Control Arm on MERCEDES-BENZ M-Class (W163) ML 400 CDI 4.0 (163.128) 2004 is not an issue anymore with our step-by-step tutorial
    Step 26
    Install the fastening bolts.
    Step 27
    Attach the lower control arm.Use a flat screwdriver.
    Step 28
    Install the fastening bolts. Use a hammer.
  16. How to change Control Arm on ML W163 1998 - free PDF and video manuals
    Step 29
    Connect the ball joint to the steering knuckle
    Step 30
    Screw the fasteners of the ball joint.Use a combination spanner #19.
  17. How to replace MERCEDES-BENZ M-Class (W163) ML 270 CDI 2.7 (163.113) 1999 Control Arm - step-by-step manuals and video guides
    Step 31
    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 40 Nm torque.
    Step 32
    Install the shock strut mount cap.
  18. ML W163 ML 320 3.2 (163.154) 2000 Control Arm replacement: free workshop manuals
    Step 33
    Tighten the top fastening of the ball joint.Use a combination spanner #19.Use a torque wrench.Tighten it to 70 Nm torque.
  19. Changing Control Arm on MERCEDES-BENZ M-Class (W163) ML 55 AMG 5.4 (163.174) 2001 by yourself
    Step 34
    Screw in the fastener that connects the ABS sensor to the rear knuckle. Use a drive socket #10.Use a ratchet wrench.
    Step 35
    Support the arm. Use a hydraulic transmission jack.
  20. How to remove MERCEDES-BENZ M-CLASS ML 430 4.3 (163.172) 2002 Control Arm - online easy-to-follow instructions
    Step 36
    Tighten the lower arm fastening.Use a combination spanner #21.Use a drive socket #21.Use a torque wrench.Tighten it to 70 Nm torque.
  21. How to replace Control Arm on MERCEDES-BENZ M-Class (W163) 2003: download PDF manuals and video instructions
    Step 37
    Tighten the rear fastener connecting the control arm to the subframe.Use a combination spanner #18 (2 pieces).Use a torque wrench.Tighten it to 75 Nm torque.
  22. How hard is it to do yourself: Control Arm replacement on ML W163 ML 500 5.0 (163.175) 2004 - download illustrated guide
    Step 38
    Tighten the front fastener connecting the control arm to the subframe. Use a combination spanner #18 (2 pieces).Use a torque wrench.Tighten it to 75 Nm torque.
  23. Need to know how to renew Control Arm on MERCEDES-BENZ M-CLASS ? This free workshop manual will help you to do it yourself
    Step 39
    Remove the support from under the arm.
    AUTODOC recommends:
    Lower the hydraulic transmission jack smoothly, without jerks, to avoid damaging assemblies and mechanisms.
    Step 40
    Tighten the fastener connecting the stabilizer link to the stabilizer bar.Use a combination spanner #13.Use a torque wrench.Tighten it to 55 Nm torque.
  24. Changing of Control Arm on ML W163 1998 won't be an issue if you follow this illustrated step-by-step guide
    Step 41
    install the rod fastening to the stabilizer and tighten it.Use a combination spanner #13.Use a torque wrench.Tighten it to 55 Nm torque.
  25. MERCEDES-BENZ M-CLASS ML 350 3.7 (163.157) Control Arm replacement: online guides and video tutorials
    Step 42
    Treat the surface where the brake disc contacts the wheel rim. Use copper grease.
    Step 43
    Clean the brake disk surface.Use a brake cleaner.
    AUTODOC recommends:
    After applying the spray, wait a few minutes.
  26. Replacing Control Arm on ML W163 2000 ML 270 CDI 2.7 (163.113) by yourself
    Step 44
    Install the wheel.
    AUTODOC recommends:
    To avoid injury, hold up the wheel when screwing in the fastening bolts.
  27. M-Class (W163) ML 430 4.3 (163.172) 2001 Control Arm DIY replacement workshop manual
    Step 45
    Screw in the wheel bolts.Use wheel impact socket #17.
    Step 46
    Lower the car and working in a cross order, tighten the wheel bolts.Use a torque wrench.Tighten it to 120 nm torque.
    Step 47
    Remove the jacks and chocks.
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DIY MERCEDES-BENZ M-Class (W163) Control Arm replacement - online guide
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