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How to change rear upper arm on Mercedes ML W163 – replacement guide
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Important!
This replacement procedure can be used for:
MERCEDES-BENZ M-Class (W163) ML 320 (163.154), MERCEDES-BENZ M-Class (W163) ML 230 (163.136), MERCEDES-BENZ M-Class (W163) ML 430 (163.172), MERCEDES-BENZ M-Class (W163) ML 55 AMG (163.174), MERCEDES-BENZ M-Class (W163) ML 400 CDI (163.128), MERCEDES-BENZ M-Class (W163) ML 500 (163.175), MERCEDES-BENZ M-Class (W163) ML 350 (163.157), MERCEDES-BENZ M-Class (W163) ML 350 … View more
The steps may slightly vary depending on the car design.
MERCEDES-BENZ M-Class (W163) ML 320 (163.154), MERCEDES-BENZ M-Class (W163) ML 230 (163.136), MERCEDES-BENZ M-Class (W163) ML 430 (163.172), MERCEDES-BENZ M-Class (W163) ML 55 AMG (163.174), MERCEDES-BENZ M-Class (W163) ML 400 CDI (163.128), MERCEDES-BENZ M-Class (W163) ML 500 (163.175), MERCEDES-BENZ M-Class (W163) ML 350 (163.157), MERCEDES-BENZ M-Class (W163) ML 350 … View more
The steps may slightly vary depending on the car design.
How to change upper rear suspension arm on MERCEDES-BENZ M W163 TUTORIAL | AUTODOC

All the parts you need to replace – Control Arm for M-Class (W163) and other MERCEDES-BENZ models
Suspension arm
Alternative products

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
Replacement: rear upper arm – Mercedes ML W163. Tip from AUTODOC experts:
- The replacement procedure is identical for the right and left upper control arms.
- All work should be done with the engine stopped.
Replacement: rear upper arm – Mercedes ML W163. Use the following procedure:
- Step 1Secure the wheels with chocks.Step 2Loosen the wheel mounting bolts. Use wheel impact socket #17.Step 3Raise the rear of the car and secure on supports.Step 4Unscrew the wheel bolts.AUTODOC recommends:Warning! To avoid injury, hold the wheel while unscrewing the fastening bolts. Mercedes ML W163
- Step 5Remove the wheel.
- Step 6Unscrew the ABS sensor fastening from the steering knuckle. Use a drive socket #10. Use a ratchet wrench.
- Step 7Clean the fastener connecting the ball joint to the steering knuckle. Use a wire brush. Use WD-40 spray.Step 8Unscrew the top fastening of the ball joint. Use a combination spanner #19.
- Step 9Disconnect the ball joint from the steering knuckle. Use a hammer.
- Step 10Remove the shock strut mount cap. Use a flat screwdriver.
- Step 11Clean the fasteners of the shock strut upper mount. Use a wire brush. Use WD-40 spray.Step 12Loosen the upper fastener of the shock strut mount. Use a combination spanner #13. Use a drive socket #13. Use a ratchet wrench.
- Step 13Clean the stabiliser link fasteners. Use a wire brush. Use WD-40 spray.Step 14Unscrew the fastener connecting the stabilizer link to the control arm. Use a combination spanner #13 (2 pieces).
- Step 15Unscrew the fasteners connecting the stabiliser link to the stabiliser bar. Use a combination spanner #13.
- Step 16Unscrew the front arm fastener. Use a combination spanner #18 (2 pieces).
- Step 17Remove the fastening bolt. Use a hammer.Step 18Unscrew the rear fastener connecting the control arm to the subframe. Use a combination spanner #18 (2 pieces).
- Step 19Unscrew the lower arm fastening. Use a combination spanner #21. Use a drive socket #21. Use a ratchet wrench.Step 20Remove the fastening bolts.Step 21Detach the lower control arm.
- Step 22Remove the fastening bolt.Step 23Remove the upper control arm.
- Step 24Clean the mounting seats and the thread of the suspension arm. Use a wire brush. Use WD-40 spray.Step 25Install a new upper control arm.Replacement: rear upper arm – Mercedes ML W163. Professionals recommend: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.
- Step 26Install the fastening bolts.Step 27Attach the lower control arm. Use a flat screwdriver.Step 28Install the fastening bolts. Use a hammer.
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