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How to change rear lower arm on MERCEDES-BENZ C-Class Saloon (W205) – replacement guide
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Important!
This replacement procedure can be used for:
MERCEDES-BENZ C-Class Saloon (W205) C 200 (205.042), MERCEDES-BENZ C-Class Saloon (W205) C 220 BlueTEC / d (205.002, 205.004), MERCEDES-BENZ C-Class Saloon (W205) C 180 (205.040, 205.140), MERCEDES-BENZ C-Class Saloon (W205) C 220 BlueTEC / d (205.003), MERCEDES-BENZ C-Class Saloon (W205) C 250 BlueTEC / d (205.008, 205.006), MERCEDES-BENZ C-Class Saloon (W205) C 250 (205.045), MERCEDES-BENZ C-Class Saloon (W205) C 180 BlueTEC / d (205.036), MERCEDES-BENZ C-Class Saloon (W205) C 200 BlueTEC / d (205.037), MERCEDES-BENZ C-Class Saloon (W205) C 250 BlueTEC / d 4-matic (205.009), MERCEDES-BENZ C-Class Saloon (W205) C 300 BlueTEC Hybrid / h (205.012), MERCEDES-BENZ C-Class Saloon (W205) C 300 (205.048), MERCEDES-BENZ C-Class Saloon (W205) C 350 e (205.047), MERCEDES-BENZ C-Class Saloon (W205) C 220 d 4-matic (205.005), MERCEDES-BENZ C-Class Saloon (W205) C 160 (205.044), MERCEDES-BENZ C-Class Saloon (W205) C 200 4-matic (205.043), MERCEDES-BENZ C-Class Saloon (W205) C 200 d (205.007), MERCEDES-BENZ C-Class Saloon (W205) C 300 4-matic (205.049), MERCEDES-BENZ C-Class Saloon (W205) C 220 d (205.014), MERCEDES-BENZ C-Class Saloon (W205) C 220 d 4-matic (205.015), MERCEDES-BENZ C-Class Saloon (W205) C 200 EQ Boost (205.077), MERCEDES-BENZ C-Class Saloon (W205) C 200 EQ Boost 4-matic (205.078), MERCEDES-BENZ C-Class Saloon (W205) C 200 d (205.011), MERCEDES-BENZ C-Class Saloon (W205) C 200 d (205.001), MERCEDES-BENZ C-Class Saloon (W205) AMG C 43 4-matic (205.064), MERCEDES-BENZ C-Class Saloon (W205) C 180 d (205.000), MERCEDES-BENZ C-Class Saloon (W205) C 300 (205.083), MERCEDES-BENZ C-Class Saloon (W205) C 300 d (205.018), MERCEDES-BENZ C-Class Saloon (W205) C 300 d 4-matic (205.019), MERCEDES-BENZ C-Class Saloon (W205) C 180 (205.040), MERCEDES-BENZ C-Class Saloon (W205) C 300 (205.083), MERCEDES-BENZ C-Class Saloon (W205) C 300 4-matic (205.084), MERCEDES-BENZ C-Class Saloon (W205) C 300 EQ Boost (205.083), MERCEDES-BENZ C-Class Saloon (W205) C 300 EQ Boost 4-matic (205.084), MERCEDES-BENZ C-Class Saloon (W205) C 300 de (205.013), MERCEDES-BENZ C-Class Saloon (W205) C 160 (205.075), MERCEDES-BENZ C-Class Saloon (W205) C 180 (205.076), MERCEDES-BENZ C-Class Saloon (W205) C 300 e (205.053), MERCEDES-BENZ C-Class Saloon (W205) C 300 e 4-matic (205.054), MERCEDES-BENZ C-Class Saloon (W205) C 200 (205.080), MERCEDES-BENZ C-Class Saloon (W205) C 200 4-matic (205.079) … View more
The steps may slightly vary depending on the car design.
MERCEDES-BENZ C-Class Saloon (W205) C 200 (205.042), MERCEDES-BENZ C-Class Saloon (W205) C 220 BlueTEC / d (205.002, 205.004), MERCEDES-BENZ C-Class Saloon (W205) C 180 (205.040, 205.140), MERCEDES-BENZ C-Class Saloon (W205) C 220 BlueTEC / d (205.003), MERCEDES-BENZ C-Class Saloon (W205) C 250 BlueTEC / d (205.008, 205.006), MERCEDES-BENZ C-Class Saloon (W205) C 250 (205.045), MERCEDES-BENZ C-Class Saloon (W205) C 180 BlueTEC / d (205.036), MERCEDES-BENZ C-Class Saloon (W205) C 200 BlueTEC / d (205.037), MERCEDES-BENZ C-Class Saloon (W205) C 250 BlueTEC / d 4-matic (205.009), MERCEDES-BENZ C-Class Saloon (W205) C 300 BlueTEC Hybrid / h (205.012), MERCEDES-BENZ C-Class Saloon (W205) C 300 (205.048), MERCEDES-BENZ C-Class Saloon (W205) C 350 e (205.047), MERCEDES-BENZ C-Class Saloon (W205) C 220 d 4-matic (205.005), MERCEDES-BENZ C-Class Saloon (W205) C 160 (205.044), MERCEDES-BENZ C-Class Saloon (W205) C 200 4-matic (205.043), MERCEDES-BENZ C-Class Saloon (W205) C 200 d (205.007), MERCEDES-BENZ C-Class Saloon (W205) C 300 4-matic (205.049), MERCEDES-BENZ C-Class Saloon (W205) C 220 d (205.014), MERCEDES-BENZ C-Class Saloon (W205) C 220 d 4-matic (205.015), MERCEDES-BENZ C-Class Saloon (W205) C 200 EQ Boost (205.077), MERCEDES-BENZ C-Class Saloon (W205) C 200 EQ Boost 4-matic (205.078), MERCEDES-BENZ C-Class Saloon (W205) C 200 d (205.011), MERCEDES-BENZ C-Class Saloon (W205) C 200 d (205.001), MERCEDES-BENZ C-Class Saloon (W205) AMG C 43 4-matic (205.064), MERCEDES-BENZ C-Class Saloon (W205) C 180 d (205.000), MERCEDES-BENZ C-Class Saloon (W205) C 300 (205.083), MERCEDES-BENZ C-Class Saloon (W205) C 300 d (205.018), MERCEDES-BENZ C-Class Saloon (W205) C 300 d 4-matic (205.019), MERCEDES-BENZ C-Class Saloon (W205) C 180 (205.040), MERCEDES-BENZ C-Class Saloon (W205) C 300 (205.083), MERCEDES-BENZ C-Class Saloon (W205) C 300 4-matic (205.084), MERCEDES-BENZ C-Class Saloon (W205) C 300 EQ Boost (205.083), MERCEDES-BENZ C-Class Saloon (W205) C 300 EQ Boost 4-matic (205.084), MERCEDES-BENZ C-Class Saloon (W205) C 300 de (205.013), MERCEDES-BENZ C-Class Saloon (W205) C 160 (205.075), MERCEDES-BENZ C-Class Saloon (W205) C 180 (205.076), MERCEDES-BENZ C-Class Saloon (W205) C 300 e (205.053), MERCEDES-BENZ C-Class Saloon (W205) C 300 e 4-matic (205.054), MERCEDES-BENZ C-Class Saloon (W205) C 200 (205.080), MERCEDES-BENZ C-Class Saloon (W205) C 200 4-matic (205.079) … 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 C-Class Saloon (W205) and other MERCEDES-BENZ models
Alternative products

Wire brush
WD-40 spray
Brake cleaner
Ceramic grease
Copper grease
Torque wrench
Combination spanner #18
Drive socket # 10
Drive socket # 18
Torx bit E10
Torx bit E14
XZN socket bit # 12
Wheel impact socket #17
Ratchet wrench
Flat screwdriver
Hydraulic transmission jack
Wheel chock
Replacement: rear lower arm – MERCEDES-BENZ C-CLASS (W205). Tip from AUTODOC:
- The replacement procedure is identical for the left and right lower control arms.
- Please note: all work on the car – MERCEDES-BENZ C-CLASS (W205) – should be done with the engine switched off.
Carry out replacement in the following order:
- Step 1Secure the wheels with chocks.Step 2
Loosen the wheel mounting bolts. Use wheel impact socket #17. - Step 3Raise the car.Replacement: rear lower arm – MERCEDES-BENZ C-CLASS (W205). AUTODOC experts recommend: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
Unscrew the wheel bolts.AUTODOC recommends:Warning! To avoid injury, hold the wheel while unscrewing the fastening bolts. MERCEDES-BENZ C-CLASS (W205) - Step 5
Remove the wheel. - Step 6
Unclip the fasteners and remove the suspension arm plastic cover. Use a flat screwdriver. - Step 7
Unscrew the fasteners of the underbody plastic cover. Use a drive socket #10. Use a ratchet wrench. - Step 8
Clean all joints of the arm. Use a wire brush. Use WD-40 spray. - Step 9
Unscrew the fastener that connects the suspension arm to the stub axle. Use a combination spanner #18. Use XZN #12. Use a ratchet wrench. - Step 10
Remove the fastening bolt. - Step 11
Clean the subframe bracket fasteners. Use a wire brush. Use WD-40 spray. - Step 12
Support the subframe. Use a hydraulic transmission jack. - Step 13
Unscrew the subframe bracket fasteners. This is necessary to access the upper fastening bolt of the suspension arm. Use Torx E10. Use Torx E14. Use a ratchet wrench. - Step 14
Remove the fastening bolts. - Step 15
Remove the subframe bracket. - Step 16
Unscrew the fastener connecting the control arm to the subframe. Use a combination spanner #18. Use XZN #12. Use a ratchet wrench. - Step 17
Remove the fastening bolt. - Step 18
Remove the arm. - Step 19
Clean the suspension arm mounting seats. Use a wire brush. Use WD-40 spray. - Step 20
Clean the subframe bracket mounting seats. Use a wire brush. Use WD-40 spray. - Step 21
Install a new arm.Replacement: rear lower arm – MERCEDES-BENZ C-CLASS (W205). Professionals recommend:During the installation process, use only new bolts and nuts. - Step 22
Install the fastening bolts. - Step 23
Install the subframe bracket. - Step 24
Install the fastening bolts. - Step 25
Tighten the subframe bracket fasteners. Use Torx E10. Use a torque wrench. Tighten it to 28 Nm torque.
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