Mercedes-Benz Cars 2000-05

Lower Ball Joints

Print

Removal & Installation



  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Front wheel
     
    Disc brake rotor securing bolt and backing plate bolt
     
    Ball joint nut
     
    Ball joint-to-steering knuckle nut
     
    Ball joint
     

  4.  

To install:

  1. Install or connect the following:

    Ball joint. Torque the control arm nut to 74 ft. lbs. (100 Nm) and the knuckle nut to 104 ft. lbs. (140 Nm).
     
    Backing plate bolt. Torque to 72 inch lbs. (8 Nm).
     
    Brake rotor bolt. Torque the bolt to 84 inch lbs. (10 Nm).
     
    Front wheel
     

  2.  


    Click image to see an enlarged view

    Fig. Common ball joint-C Class (202) and S Class (140)



NOTE
The ball joint on vehicles with engines 104 and 119 cannot be pressed out of the control arm. They have been welded in place. In this case, replace the control arm assembly.

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Front wheel
     
    Coil spring
     
    Stabilizer bar and bracket
     
    Lower control arm-to-frame nuts and bolts
     
    Ball joint pinch bolt and nut
     
    Lower control arm
     
    Ball joint using a press
     

  4.  

To install:

  1. Install or connect the following:

    Ball joint using a press
     
    Control arm. Temporarily tighten the control arm-to-frame nuts.
     
    Ball joint pinch bolt and nut. Torque the nut to 92 ft. lbs. (125 Nm).
     
    Stabilizer bar bracket. Torque the bolts to 15 ft. lbs. (20 Nm).
     
    Coil spring
     
    Front wheel
     

  2.  
  3. Lower the vehicle to the floor. Torque the control arm-to-frame nuts to 88 ft. lbs. (120 Nm).
  4.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Front wheel
     
    Axle shaft 12-point nut (61)
     
    Ball joint nut. Press the ball joint out of the steering knuckle (5).
     

  4.  
  5. Pull the steering knuckle outward and remove the axle shaft (60) from the flange.
  6.  
  7. Support the knuckle assembly by placing a block of wood (arrow) between the coil spring and the knuckle.
  8.  
  9. Position the axle shaft out of the way using a piece of wire.
  10.  
  11. Remove the nut and press the ball joint (7) out of the lower control arm (4).
  12.  

To install:

  1. Install or connect the following:

    Ball joint. Torque a new self-locking nut to 77 ft. lbs. (105 Nm).
     
    Axle shaft
     
    Ball joint to the steering knuckle with a new self-locking nut. Torque the nut to 77 ft. lbs. (105 Nm).
     
    12-point axle nut. Torque to 162 ft. lbs. (220 Nm).
     
    Front wheel
     

  2.  


    Click image to see an enlarged view

    Fig. Lower ball joint mounting-E Class 4-Matic (210)


  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Front wheel
     
    Disc brake rotor securing bolt and backing plate bolt
     
    Ball joint nut
     
    Ball joint-to-steering knuckle nut
     
    Ball joint
     

  4.  

To install:

  1. Install or connect the following:

    Ball joint. Torque the control arm nut to 74 ft. lbs. (100 Nm) and the knuckle nut to 104 ft. lbs. (140 Nm).
     
    Backing plate bolt. Torque to 72 inch lbs. (8 Nm)
     
    Brake rotor bolt. Torque the bolt to 84 inch lbs. (10 Nm)
     
    Front wheel

    Click image to see an enlarged view

    Fig. Common ball joint-C Class (202) and S Class (140)

     

  2.  


NOTE
The ball joint on vehicles with engines 104 and 119 cannot be pressed out of the control arm. They have been welded in place. In this case, replace the control arm assembly.

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Front wheel
     
    Coil spring
     
    Stabilizer bar and bracket
     
    Lower control arm-to-frame nuts and bolts
     
    Ball joint pinch bolt and nut
     
    Lower control arm
     
    Ball joint using a press
     

  4.  

To install:

  1. Install or connect the following:

    Ball joint using a press
     
    Control arm. Temporarily tighten the control arm-to-frame nuts
     
    Ball joint pinch bolt and nut. Torque the nut to 92 ft. lbs. (125 Nm)
     
    Stabilizer bar bracket. Torque the bolts to 15 ft. lbs. (20 Nm)
     
    Coil spring
     
    Front wheel
     

  2.  
  3. Lower the vehicle to the floor. Torque the control arm-to-frame nuts to 88 ft. lbs. (120 Nm).
  4.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Front wheel
     
    Disc brake rotor securing bolt and backing plate bolt
     
    Ball joint nut
     
    Ball joint-to-steering knuckle nut
     
    Ball joint
     

  4.  

To install:

  1. Install or connect the following:

    Ball joint. Torque the control arm nut to 74 ft. lbs. (100 Nm) and the knuckle nut to 104 ft. lbs. (140 Nm).
     
    Backing plate bolt. Torque to 72 inch lbs. (8 Nm).
     
    Brake rotor bolt. Torque the bolt to 84 inch lbs. (10 Nm).
     
    Front wheel

    Click image to see an enlarged view

    Fig. Common ball joint-C Class shown, other similar

     

  2.  

The lower ball joint is replaceable only on the 2000 C Class, 2000-03 CLK320/430, 2000-02 E Class and 2000-04 SLK Class

4matic
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Front wheel
     
    Axle shaft 12-point nut (61)
     
    Ball joint nut. Press the ball joint out of the steering knuckle (5).
     

  4.  
  5. Pull the steering knuckle outward and remove the axle shaft (60) from the flange.
  6.  
  7. Support the knuckle assembly by placing a block of wood (arrow) between the coil spring and the knuckle.
  8.  
  9. Position the axle shaft out of the way using a piece of wire.
  10.  
  11. Remove the nut and press the ball joint (7) out of the lower control arm (4).
  12.  

To install:

  1. Install or connect the following:

    Ball joint. Torque a new self-locking nut to 77 ft. lbs. (105 Nm).
     
    Axle shaft
     
    Ball joint to the steering knuckle with a new self-locking nut. Torque the nut to 77 ft. lbs. (105 Nm).
     
    12-point axle nut. Torque to 162 ft. lbs. (220 Nm).
     
    Front wheel

    Click image to see an enlarged view

    Fig. Lower ball joint mounting-E Class 4MATIC

     

  2.  

Except 4matic
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Front wheel
     
    Coil spring
     
    Stabilizer bar and bracket
     
    Lower control arm-to-frame nuts and bolts
     
    Ball joint pinch bolt and nut
     
    Lower control arm
     
    Ball joint using a press
     

  4.  

To install:

  1. Install or connect the following:

    Ball joint using a press
     
    Control arm. Temporarily tighten the control arm-to-frame nuts.
     
    Ball joint pinch bolt and nut. Torque the nut to 92 ft. lbs. (125 Nm).
     
    Stabilizer bar bracket. Torque the bolts to 15 ft. lbs. (20 Nm).
     
    Coil spring
     
    Front wheel
     

  2.  
  3. Lower the vehicle to the floor. Torque the control arm-to-frame nuts to 88 ft. lbs. (120 Nm).
  4.  

 
label.common.footer.alt.autozoneLogo