How to carry out replacement: Control Arm 200 1.8 (172.448) Mercedes SLK R172
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Change Mercedes SLK R172 200 1.8 (172.448) Control Arm yourself – manuals and video tutorials

How to change front lower arm on MERCEDES-BENZ SLK (R172) – replacement guide

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Important!
This replacement procedure can be used for:
MERCEDES-BENZ SLK (R172) 250 (172.447), MERCEDES-BENZ SLK (R172) 200 (172.448), MERCEDES-BENZ SLK (R172) 350 (172.457), MERCEDES-BENZ SLK (R172) 55 AMG (172.475), MERCEDES-BENZ SLK (R172) 250 CDI / d (172.403), MERCEDES-BENZ SLK (R172) 300 (172.438), MERCEDES-BENZ SLK (R172) 200 (172.434) … 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 SLK (R172) and other MERCEDES-BENZ models
Alternative products
How to change Suspension arm on Mercedes SLK R172 200 1.8 (172.448) – step-by-step instructions for straightforward car repair Suspension arm
Tools
Replacement: front lower arm – MERCEDES-BENZ SLK (R172). List of the tools you'll need:
Wire brush
WD-40 spray
Brake cleaner
Ceramic grease
Copper grease
Torque wrench
Combination spanner #21
Combination spanner #22
Torx bit E20
Wheel impact socket #17
Ratchet wrench
Ball joint puller
Hydraulic transmission jack
Wheel chock
Buy tools
Replacement: front lower arm – MERCEDES-BENZ SLK (R172). Tip from AUTODOC experts:
  • The replacement procedure is identical for the left and right lower control arms.
  • Please note: all work on the car – MERCEDES-BENZ SLK (R172) – should be done with the engine switched off.
Carry out replacement in the following order:
  1. Step 1
    Secure the wheels with chocks.
    Step 2
    How to change Control Arm on Mercedes SLK R172 2011 - free PDF and video manuals
    Loosen the wheel mounting bolts. Use wheel impact socket #17.
  2. Step 3
    Raise the car.
    Replacement: front lower arm – MERCEDES-BENZ SLK (R172). 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 SLK (R172) 200 1.8 (172.448) 2012 Control Arm - step-by-step manuals and video guides
    Unscrew the wheel bolts.
    AUTODOC recommends:
    Warning! To avoid injury, hold the wheel while unscrewing the fastening bolts. MERCEDES-BENZ SLK (R172)
  3. Step 5
    Mercedes SLK R172 250 CDI 2.2 (172.403) 2013 Control Arm replacement: free workshop manuals
    Remove the wheel.
  4. Step 6
    Changing Control Arm on MERCEDES-BENZ SLK (R172) 350 3.5 (172.457) 2014 by yourself
    Clean all joints of the arm. Use a wire brush. Use WD-40 spray.
  5. Step 7
    How to remove MERCEDES-BENZ SLK 55 AMG 5.5 (172.475) 2015 Control Arm - online easy-to-follow instructions
    Unscrew the fastener connecting the control arm to the subframe. Use a combination spanner #21. Use Torx E20. Use a ratchet wrench.
  6. Step 8
    How to replace Control Arm on MERCEDES-BENZ SLK (R172) 2016: download PDF manuals and video instructions
    Unscrew the ball joint fastening to the steering knuckle. Use a combination spanner #21.
  7. Step 9
    How hard is it to do yourself: Control Arm replacement on Mercedes SLK R172 55 AMG (172.475) 2017 - download illustrated guide
    Prop up the steering knuckle. Use a hydraulic transmission jack.
  8. Step 10
    Need to know how to renew Control Arm on MERCEDES-BENZ SLK 2018? This free workshop manual will help you to do it yourself
    Disconnect the ball joint from the steering knuckle. Use a ball joint puller.
  9. Step 11
    Changing of Control Arm on Mercedes SLK R172 2019 won't be an issue if you follow this illustrated step-by-step guide
    Remove the support from under the steering knuckle.
    AUTODOC recommends:
    Replacement: front lower arm – MERCEDES-BENZ SLK (R172). Lower the transmission jack smoothly, without jerks, to avoid damaging components and mechanisms.
  10. Step 12
    MERCEDES-BENZ SLK 200 1.8 (172.448) Control Arm replacement: online guides and video tutorials
    Remove the fastening bolt.
  11. Step 13
    Replacing Control Arm on Mercedes SLK R172 2021 200 1.8 (172.448) by yourself
    Remove the arm.
  12. Step 14
    SLK (R172) 55 AMG 5.5 (172.475) 2022 Control Arm DIY replacement workshop manual
    Clean the suspension arm mounting seats. Use a wire brush. Use WD-40 spray.
  13. Step 15
    How to change Control Arm on MERCEDES-BENZ SLK (R172) 2023 - tips and tricks
    Install a new arm.
    Replacement: front lower arm – MERCEDES-BENZ SLK (R172). Tip from AUTODOC:
    During the installation process, use only new bolts and nuts.
  14. Step 16
    Step-by-step recommendations for DIY replacement Mercedes SLK R172 2024 55 AMG 5.5 (172.475) Control Arm
    Install the fastening bolt.
  15. Step 17
    DIY replacement of Control Arm on MERCEDES-BENZ SLK (R172) 250 1.8 (172.447) 2025 is not an issue anymore with our step-by-step tutorial
    Connect the ball joint to the steering knuckle.
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