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How to change front lower arm on MERCEDES-BENZ V-Class (W638/2) – replacement guide
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Important!
This replacement procedure can be used for:
MERCEDES-BENZ V-Class (W638/2) V 230 TD (638.274), MERCEDES-BENZ V-Class (W638/2) V 230 (638.234, 638.294), MERCEDES-BENZ V-Class (W638/2) V 280 (638.244, 638.294), MERCEDES-BENZ V-Class (W638/2) V 200 (638.214, 638.294), MERCEDES-BENZ V-Class (W638/2) V 200 CDI (638.294), MERCEDES-BENZ V-Class (W638/2) V 220 CDI (638.294) … View more
The steps may slightly vary depending on the car design.
MERCEDES-BENZ V-Class (W638/2) V 230 TD (638.274), MERCEDES-BENZ V-Class (W638/2) V 230 (638.234, 638.294), MERCEDES-BENZ V-Class (W638/2) V 280 (638.244, 638.294), MERCEDES-BENZ V-Class (W638/2) V 200 (638.214, 638.294), MERCEDES-BENZ V-Class (W638/2) V 200 CDI (638.294), MERCEDES-BENZ V-Class (W638/2) V 220 CDI (638.294) … 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 V-Class (W638/2) and other MERCEDES-BENZ models
Alternative products

Wire brush
WD-40 spray
Copper grease
Drive socket # 8
Drive socket # 19
Combination spanner #18
Combination spanner #21
Wheel impact socket #17
Ratchet wrench
Torque wrench
Flat chisel
Hammer
Crow bar
Hydraulic transmission jack
Wheel chock
Replacement: front lower arm – MERCEDES-BENZ V-CLASS (638/2). AUTODOC recommends:
- The replacement procedure is identical for the left and right lower control arms.
- All work should be done with the engine stopped.
Replacement: front lower arm – MERCEDES-BENZ V-CLASS (638/2). Use the following procedure:
- Step 1
Secure the wheels with chocks. - Step 2
Loosen the wheel mounting bolts. Use wheel impact socket #17. - Step 3Raise the front of the car and secure on supports.Step 4
Unscrew the wheel bolts.AUTODOC recommends:Important! Hold the wheel while unscrewing the fastening bolts. MERCEDES-BENZ V-CLASS (638/2) - Step 5
Remove the wheel. - Step 6
Clean all joints of the arm. Use a wire brush. Treat all joints of the arm. Use WD-40 spray.AUTODOC recommends:Replacement: front lower arm – MERCEDES-BENZ V-CLASS (638/2). After applying the spray, wait a few minutes.Wear protective goggles. - Step 7
Unscrew the ball joint fastening to the steering knuckle. Use a combination spanner #21 (2 pieces). - Step 8
Unscrew and remove the wheel arch cover fasteners. Use a drive socket #8. Use a ratchet wrench. - Step 9
Remove the wheel arch cover. - Step 10
Unscrew the front arm fastener. Use a combination spanner #18. Use a drive socket #19. Use a ratchet wrench. - Step 11
Remove the fastening bolt. Use a crowbar. - Step 12
Unscrew the rear arm fastener. Use a combination spanner #21. Use a drive socket #19. Use a ratchet wrench. - Step 13
Clean the fastener connecting the ball joint to the steering knuckle. Use WD-40 spray. - Step 14
Release the fastener connecting the ball joint to the steering knuckle. Use a flat metal-working chisel. Use a hammer. - Step 15
Disconnect the spherical joint from the arm. Use a crowbar. - Step 16
Remove the arm. Use a crowbar. - Step 17
Clean the mounting seats and the thread of the suspension arm. Use a wire brush. Use WD-40 spray. - Step 18
Install a new arm.Replacement: front lower arm – MERCEDES-BENZ V-CLASS (638/2). AUTODOC experts recommend:During the installation process, use only new bolts and nuts.Do not damage the ball joint cover. - Step 19
Connect the ball joint to the steering knuckle. - Step 20
Support the arm. Use a hydraulic transmission jack. - Step 21
Take the flat chisel out of the steering knuckle.
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