Important!
This replacement procedure can be used for:
MERCEDES-BENZ A-Class (W168) A 160 (168.033, 168.133)

The steps may slightly vary depending on the car design.

How to replace Front Suspension Arm on MERCEDES-BENZ A W168 TUTORIAL | AUTODOC

Required tools:
Required tools:
Wire brush
WD-40 spray
Brake cleaner
Copper grease
Combination spanner #19
Drive socket # E14
Wheel impact socket #17
Ratchet wrench
Torque wrench
Hammer
Flat Screwdriver
Crow bar
Hydraulic transmission jack
Wheel chock
AUTODOC recommends:
  • The replacement procedure is identical for the left and right lower 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 Mercedes W168 1997 - free PDF and video manuals
    Step 1
    Secure the wheels with chocks.
  2. How to replace MERCEDES-BENZ A-Class (W168) A 140 1.4 (168.031, 168.131) 1998 Control Arm - step-by-step manuals and video guides
    Step 2
    Loosen the wheel mounting bolts.Use wheel impact socket #17.
  3. Mercedes W168 A 170 CDI 1.7 (168.009, 168.109) 1999 Control Arm replacement: free workshop manuals
    Step 3
    Raise the front of the car and secure on supports.
  4. Changing Control Arm on MERCEDES-BENZ A-Class (W168) A 170 CDI 1.7 (168.008) 2000 by yourself
    Step 4
    Unscrew the wheel bolts.
    AUTODOC recommends:
    To avoid injury, hold up the wheel when unscrewing the bolts.
  5. How to remove MERCEDES-BENZ A-CLASS A 190 1.9 (168.032, 168.132) 2001 Control Arm - online easy-to-follow instructions
    Step 5
    Remove the wheel.
  6. How to replace Control Arm on MERCEDES-BENZ A-Class (W168) 2002: download PDF manuals and video instructions
    Step 6
    Clean the fastener connecting the ball joint to the steering knuckle.Use a wire brush.Use WD-40 spray.
  7. How hard is it to do yourself: Control Arm replacement on Mercedes W168 A 160 CDI 1.7 (168.006) 2003 - download illustrated guide
    Step 7
    Unscrew the ball joint fastening to the steering knuckle.Use a combination spanner #19.
  8. Need to know how to renew Control Arm on MERCEDES-BENZ A-CLASS ? This free workshop manual will help you to do it yourself
    Step 8
    Disconnect the ball joint from the steering knuckle.Use a crowbar. Use a hammer.
  9. Changing of Control Arm on Mercedes W168 1997 won't be an issue if you follow this illustrated step-by-step guide
    Step 9
    Clean the fasteners connecting the control arm to the subframe.Use a wire brush.Use WD-40 spray.
    Step 10
    Unscrew the front arm fastener.Use a drive socket #E14.Use a ratchet wrench.
  10. MERCEDES-BENZ A-CLASS A 160 CDI 1.7 (168.007) Control Arm replacement: online guides and video tutorials
    Step 11
    Remove the front fastener of the control arm.
  11. Replacing Control Arm on Mercedes W168 1999 A 140 1.4 (168.031, 168.131) by yourself
    Step 12
    Unscrew the rear fastener connecting the control arm to the subframe.Use a drive socket #E14.Use a ratchet wrench.
  12. A-Class (W168) A 190 1.9 (168.032, 168.132) 2000 Control Arm DIY replacement workshop manual
    Step 13
    Remove the rear fastener of the control arm.Use a flat screwdriver.
  13. How to change Control Arm on MERCEDES-BENZ A-Class (W168) 2001 - tips and tricks
    Step 14
    Remove the arm.Use a crowbar.
  14. Step-by-step recommendations for DIY replacement Mercedes W168 2002 A 190 1.9 (168.032, 168.132) Control Arm
    Step 15
    Clean the mounting seats and the thread of the suspension arm.Use a wire brush.Use WD-40 spray.
  15. DIY replacement of Control Arm on MERCEDES-BENZ A-Class (W168) A 160 1.6 (168.033, 168.133) 2003 is not an issue anymore with our step-by-step tutorial
    Step 16
    Install a new arm.
    AUTODOC recommends:
    During the installation process, use only new bolts and nuts.Do not damage the ball joint cover.
  16. How to change Control Arm on Mercedes W168 1997 - free PDF and video manuals
    Step 17
    Install the front fastener of the arm.
  17. How to replace MERCEDES-BENZ A-Class (W168) A 140 1.4 (168.031, 168.131) 1998 Control Arm - step-by-step manuals and video guides
    Step 18
    Install the rear fastener of the control arm.Use a hammer.
  18. Mercedes W168 A 170 CDI 1.7 (168.009, 168.109) 1999 Control Arm replacement: free workshop manuals
    Step 19
    Screw the rear arm fastener.Use a drive socket #E14.Use a ratchet wrench.
  19. Changing Control Arm on MERCEDES-BENZ A-Class (W168) A 170 CDI 1.7 (168.008) 2000 by yourself
    Step 20
    Connect the ball joint to the steering knuckle.Use a crowbar.
  20. How to remove MERCEDES-BENZ A-CLASS A 190 1.9 (168.032, 168.132) 2001 Control Arm - online easy-to-follow instructions
    Step 21
    Tighten the ball joint fastener. Use a combination spanner #19.Use a torque wrench.Tighten it to 70 Nm torque.
  21. How to replace Control Arm on MERCEDES-BENZ A-Class (W168) 2002: download PDF manuals and video instructions
    Step 22
    Support the arm.Use a hydraulic transmission jack.
  22. How hard is it to do yourself: Control Arm replacement on Mercedes W168 A 160 CDI 1.7 (168.006) 2003 - download illustrated guide
    Step 23
    Tighten the front fastener connecting the control arm to the subframe.Use a drive socket #E14.Use a torque wrench.Tighten it to 65 Nm torque.
  23. Need to know how to renew Control Arm on MERCEDES-BENZ A-CLASS ? This free workshop manual will help you to do it yourself
    Step 24
    Tighten the rear fastener of the control arm.Use a drive socket #E14.Use a torque wrench.Tighten it to 75 Nm torque.
  24. Changing of Control Arm on Mercedes W168 1997 won't be an issue if you follow this illustrated step-by-step guide
    Step 25
    Remove the support from under the arm.
    AUTODOC recommends:
    Lower the hydraulic transmission jack smoothly, without jerks, to avoid damaging assemblies and mechanisms.
  25. MERCEDES-BENZ A-CLASS A 160 CDI 1.7 (168.007) Control Arm replacement: online guides and video tutorials
    Step 26
    Treat all joints of the arm.Use copper grease.
    Step 27
    Treat the surface where the brake disc contacts the wheel rim. Use copper grease.
  26. Replacing Control Arm on Mercedes W168 1999 A 140 1.4 (168.031, 168.131) by yourself
    Step 28
    Clean the brake disk surface.Use a brake cleaner.
    AUTODOC recommends:
    After applying the spray, wait a few minutes.
  27. A-Class (W168) A 190 1.9 (168.032, 168.132) 2000 Control Arm DIY replacement workshop manual
    Step 29
    Install the wheel.
    AUTODOC recommends:
    To avoid injury, hold up the wheel when screwing in the fastening bolts.
  28. How to change Control Arm on MERCEDES-BENZ A-Class (W168) 2001 - tips and tricks
    Step 30
    Screw in the wheel bolts.Use wheel impact socket #17.
  29. Step-by-step recommendations for DIY replacement Mercedes W168 2002 A 190 1.9 (168.032, 168.132) Control Arm
    Step 31
    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 120 nm torque.
  30. DIY replacement of Control Arm on MERCEDES-BENZ A-Class (W168) A 160 1.6 (168.033, 168.133) 2003 is not an issue anymore with our step-by-step tutorial
    Step 32
    Remove the jacks and chocks.
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DIY MERCEDES-BENZ A-Class (W168) Control Arm replacement - online guide
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