How to carry out replacement: Control Arm 3.0 i BMW Z4 E85
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Change BMW Z4 E85 2.5 i Control Arm yourself – manuals and video tutorials

How to change front lower arm on BMW Z4 Roadster (E85) – replacement guide

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Important!
This replacement procedure can be used for:
BMW Z4 Roadster (E85) 2.5 si, BMW Z4 Roadster (E85) M, BMW Z4 Roadster (E85) 3.0 si, BMW Z4 Roadster (E85) 2.5 si, BMW Z4 Roadster (E85) 2.5 i, BMW Z4 Roadster (E85) 2.0 i, BMW Z4 Roadster (E85) 2.2 i, BMW Z4 Roadster (E85) 2.5 i, BMW Z4 Roadster (E85) 3.0 i, BMW Z4 Roadster (E85) 3.0 si … 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 Z4 Roadster (E85) and other BMW models
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Suspension arm for Z4 Roadster (E85) Petrol (343 hp)
Tools
Replacement: front lower arm – BMW Z4 (E85). List of the tools you'll need:
Wire brush
WD-40 spray
Copper grease
Combination spanner #18
Combination spanner #19
Combination spanner #21
Drive socket # 13
Drive socket # 18
Wheel impact socket #17
Ratchet wrench
Torque wrench
Ball joint puller
3-Arm Gear Puller
Phillips screwdriver
Crow bar
Rubber mallet
Vice
Hydraulic transmission jack
Wheel chock
Buy tools
Replacement: front lower arm – BMW Z4 (E85). Professionals recommend:
  • The replacement procedure is identical for the left and right lower control arms.
  • Replacement of the independent suspension lower arm in some cars requires a part of the outlet piping of the additional heater to be removed.
  • All work should be done with the engine stopped.
Replacement: front lower arm – BMW Z4 (E85). Recommended sequence of steps:
  1. Step 1
    How to change Control Arm on BMW Z4 E85 2003 - free PDF and video manuals
    Secure the wheels with chocks.
  2. Step 2
    How to replace BMW Z4 Roadster (E85) 3.0 i 2004 Control Arm - step-by-step manuals and video guides
    Loosen the wheel mounting bolts. Use wheel impact socket #17.
  3. Step 3
    Raise the front of the car and secure on supports.
    Step 4
    BMW Z4 E85 2.5 i 2005 Control Arm replacement: free workshop manuals
    Unscrew the wheel bolts.
    AUTODOC recommends:
    Important! Hold the wheel while unscrewing the fastening bolts. BMW Z4 (E85)
  4. Step 5
    Changing Control Arm on BMW Z4 Roadster (E85) 2.0 i 2006 by yourself
    Remove the wheel.
  5. Step 6
    How to remove BMW Z4 3.0 si 2007 Control Arm - online easy-to-follow instructions
    Unscrew the fasteners of the lower sound insulation. Use a Phillips screwdriver.
  6. Step 7
    How to replace Control Arm on BMW Z4 Roadster (E85) 2008: download PDF manuals and video instructions
    Remove the lower sound insulation.
    Please note!
    Some cars are not equipped with the lower sound insulation.
  7. Step 8
    How hard is it to do yourself: Control Arm replacement on BMW Z4 E85 2.5 si 2009 - download illustrated guide
    Clean all joints of the arm. Use a wire brush. Treat all joints of the arm. Use WD-40 spray.
    Replacement: front lower arm – BMW Z4 (E85). Tip:
    After applying the spray, wait a few minutes.Wear protective goggles.
  8. Step 9
    Need to know how to renew Control Arm on BMW Z4 2003? This free workshop manual will help you to do it yourself
    Loosen the fastener connecting the ball joint to the steering knuckle. Use a combination spanner #19.
  9. Step 10
    Changing of Control Arm on BMW Z4 E85 2004 won't be an issue if you follow this illustrated step-by-step guide
    Detach the fastener connecting the suspension level sensor to the suspension control arm. Use a drive socket #13. Use a ratchet wrench.
  10. Step 11
    BMW Z4 2.5 i Control Arm replacement: online guides and video tutorials
    Unscrew the arm fastening from the subframe. Use a combination spanner #21.
  11. Step 12
    Replacing Control Arm on BMW Z4 E85 2006 3.0 i by yourself
    Unscrew the rear arm fastening. Use a drive socket #18. Use a combination spanner #18. Use a ratchet wrench.
  12. Step 13
    Z4 Roadster (E85) 3.0 si 2007 Control Arm DIY replacement workshop manual
    Unscrew the ball joint fastening to the steering knuckle. Use a combination spanner #19.
  13. Step 14
    How to change Control Arm on BMW Z4 Roadster (E85) 2008 - tips and tricks
    Disconnect the ball joint from the steering knuckle. Use a ball joint puller.
  14. Step 15
    Step-by-step recommendations for DIY replacement BMW Z4 E85 2009 3.0 si Control Arm
    Disconnect the lower arm from the steering knuckle.
  15. Step 16
    DIY replacement of Control Arm on BMW Z4 Roadster (E85) 2.2 i 2003 is not an issue anymore with our step-by-step tutorial
    Prop up the steering knuckle. Use a hydraulic transmission jack.
  16. Step 17
    How to change Control Arm on BMW Z4 E85 2003 - free PDF and video manuals
    Remove the arm. Use a crowbar.
  17. Step 18
    How to replace BMW Z4 Roadster (E85) 3.0 i 2004 Control Arm - step-by-step manuals and video guides
    Grip the suspension control arm in a vice.
  18. Step 19
    BMW Z4 E85 2.5 i 2005 Control Arm replacement: free workshop manuals
    Treat the control arm bush. Use WD-40 spray.
  19. Step 20
    Changing Control Arm on BMW Z4 Roadster (E85) 2.0 i 2006 by yourself
    Remove the control arm bush. Use 3-Arm Gear Puller.
  20. Step 21
    How to remove BMW Z4 3.0 si 2007 Control Arm - online easy-to-follow instructions
    Loosen the vice and remove the control arm.
  21. Step 22
    How to replace Control Arm on BMW Z4 Roadster (E85) 2008: download PDF manuals and video instructions
    Grip the new control arm in a vice.
  22. Step 23
    How hard is it to do yourself: Control Arm replacement on BMW Z4 E85 2.5 si 2009 - download illustrated guide
    Treat the mounting seat of the control arm bush. Use WD-40 spray.
  23. Step 24
    Need to know how to renew Control Arm on BMW Z4 2003? This free workshop manual will help you to do it yourself
    Install the control arm bush to its mounting seat. Use a rubber mallet.
  24. Step 25
    Changing of Control Arm on BMW Z4 E85 2004 won't be an issue if you follow this illustrated step-by-step guide
    Loosen the vice and remove the control arm.
  25. Step 26
    BMW Z4 2.5 i Control Arm replacement: online guides and video tutorials
    Clean the mounting seats and the thread of the suspension arm. Use a wire brush. Use WD-40 spray.
  26. Step 27
    Replacing Control Arm on BMW Z4 E85 2006 3.0 i by yourself
    Install a new arm.
    Replacement: front lower arm – BMW Z4 (E85). Tip from AUTODOC experts:
    During the installation process, use only new bolts and nuts.Do not damage the ball joint cover.
  27. Step 28
    Z4 Roadster (E85) 3.0 si 2007 Control Arm DIY replacement workshop manual
    Install the control arm fasteners.
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