AutoZone 1998 Chevrolet Truck Blazer 4WD 4.3L SFI 6cyl | Repair Guides | Suspension | Front Suspension | Wheel Bearings | AutoZone.com

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    1998 Chevrolet Truck Blazer 4WD 4.3L SFI 6cyl

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    Mercedes-Benz Cars 2000-05

    Wheel Bearings

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    Adjustment



    The front wheel bearings on the 4MATIC are not adjustable. If the bearings become loose or make noise, they must be replaced.

    1. Before servicing the vehicle, refer to the Precautions section.
    2.  
    3. Remove the front wheel.
    4.  
    5. Install 1 wheel bolt (48a) in the flange on the opposite side of the locking bolt.
    6.  
    7. Push the brake pads into the caliper until they are clear of the rotor.
    8.  
    9. Remove the grease cap (9e).
    10.  
    11. Loosen the bolt (9i) and tighten the clamping nut (9d) while turning the rotor until all bearing play is eliminated.
    12.  
    13. Loosen the clamping nut until play is detectable.
    14.  
    15. Mount a dial indicator (022) on the hub with the measuring tip on the end of the spindle.
    16.  
    17. Turn the clamping nut to adjust the play while pulling and pushing on the rotor to measure the bearing play. Correct bearing play should be 0.0004-0.0008 inches (0.01-0.02mm).
    18.  
    19. Torque the bolt on the clamping nut to 96 inch lbs. (12 Nm) and recheck the bearing play again. If the play is within specification, assemble the wheel. If not, repeat the procedure.

      Click image to see an enlarged view

      Fig. Mount a dial indicator on the rotor to measure the bearing play

    20.  

    4-Matic

    The front wheel bearings on the 4-Matic are not adjustable. If the bearings become loose or make noise, they must be replaced.

    Except E Class 4-Matic
    1. Before servicing the vehicle, refer to the Precautions section.
    2.  
    3. Remove the front wheel.
    4.  
    5. Install 1 wheel bolt (48a) in the flange on the opposite side of the locking bolt.
    6.  
    7. Push the brake pads into the caliper until they are clear of the rotor.
    8.  
    9. Remove the grease cap (9e).
    10.  
    11. Loosen the bolt (9i) and tighten the clamping nut (9d) while turning the rotor until all bearing play is eliminated.
    12.  
    13. Loosen the clamping nut until play is detectable.
    14.  
    15. Mount a dial indicator (022) on the hub with the measuring tip on the end of the spindle.
    16.  
    17. Turn the clamping nut to adjust the play while pulling and pushing on the rotor to measure the bearing play. Correct bearing play should be 0.0004-0.0008 inches (0.01-0.02mm).
    18.  
    19. Torque the bolt on the clamping nut to 96 inch lbs. (12 Nm) and recheck the bearing play again. If the play is within specification, assemble the wheel. If not, repeat the procedure.
    20.  


      Click image to see an enlarged view

      Fig. Mount a dial indicator on the rotor to measure the bearing play-except E Class 4-Matic


    1. Before servicing the vehicle, refer to the Precautions section.
    2.  
    3. Remove the front wheel.
    4.  
    5. Install 1 wheel bolt (48a) in the flange on the opposite side of the locking bolt.
    6.  
    7. Push the brake pads into the caliper until they are clear of the rotor.
    8.  
    9. Remove the grease cap (9e).
    10.  
    11. Loosen the bolt (9i) and tighten the clamping nut (9d) while turning the rotor until all bearing play is eliminated.
    12.  
    13. Loosen the clamping nut until play is detectable.
    14.  
    15. Mount a dial indicator (022) on the hub with the measuring tip on the end of the spindle.
    16.  
    17. Turn the clamping nut to adjust the play while pulling and pushing on the rotor to measure the bearing play. Correct bearing play should be 0.0004-0.0008 inches (0.01-0.02mm).
    18.  
    19. Torque the bolt on the clamping nut to 96 inch lbs. (12 Nm) and recheck the bearing play again. If the play is within specification, assemble the wheel. If not, repeat the procedure.

      Click image to see an enlarged view

      Fig. Mount a dial indicator on the rotor to measure the bearing play-except E Class 4-Matic

    20.  

    Removal & Installation



    4-Matic


    Click image to see an enlarged view

    Fig. Steering knuckle and related components-E Class 4-Matic (210)

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

      Front wheel
       
      12-point axle nut (61)
       
      Front axle distributor connector
       
      Speed and brake lining sensor wires and position out of the way
       
      Brake disc (34)
       
      Splash shield (35)
       
      Speed sensor and bracket (5f)
       
      Tie rod end (10a)
       
      Ball joint (7)
       
      Follower joint (8)
       
      Steering knuckle
       
      Axle flange
       
      Snapring
       
      Bearing assembly using a press
       

    4.  

    To install:

    1. Press a new bearing into the knuckle and install the snapring.
    2.  
    3. Press the axle flange into the bearing.
    4.  
    5. Install or connect the following:

      Steering knuckle
       
      Follower joint. Torque the nut to 33 ft. lbs. (45 Nm).
       
      Ball joint. Torque the nut to 77 ft. lbs. (105 Nm).
       
      Tie rod end. Torque the nut to 16 ft. lbs. (22 Nm).
       
      Speed sensor and bracket
       
      Splash shield
       
      Brake disc
       
      Sensor wiring
       
      Axle distributor connector
       
      12-point axle nut. Torque the nut to 162 ft. lbs. (220 Nm).
       
      Front wheel
       

    6.  

    4matic


    Click image to see an enlarged view

    Fig. Steering knuckle and related components-4MATIC

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

      Front wheel
       
      12-point axle nut (61)
       
      Front axle distributor connector
       
      Speed and brake lining sensor wires and position out of the way
       
      Brake disc (34)
       
      Splash shield (35)
       
      Speed sensor and bracket (5f)
       
      Tie rod end (10a)
       
      Ball joint (7)
       
      Follower joint (8)
       
      Steering knuckle
       
      Axle flange
       
      Snapring
       
      Bearing assembly using a press
       

    4.  

    To install:

    1. Press a new bearing into the knuckle and install the snapring.
    2.  
    3. Press the axle flange into the bearing.
    4.  
    5. Install or connect the following:

      Steering knuckle
       
      Follower joint. Torque the nut to 33 ft. lbs. (45 Nm).
       
      Ball joint. Torque the nut to 77 ft. lbs. (105 Nm).
       
      Tie rod end. Torque the nut to 16 ft. lbs. (22 Nm).
       
      Speed sensor and bracket
       
      Splash shield
       
      Brake disc
       
      Sensor wiring
       
      Axle distributor connector
       
      12-point axle nut. Torque the nut to 162 ft. lbs. (220 Nm).
       

    6.  

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

      Front wheel
       
      Brake caliper and rotor
       
      Grease cap
       
      Clamping nut and washer
       
      Wheel hub
       
      Grease seal
       
      Bearing
       

    4.  

    To install:

    1. Install or connect the following:

      Bearing
       
      Grease seal
       
      Wheel hub
       
      Washer and clamping nut
       

    2.  
    3. Adjust bearing play. Torque the clamp bolt to 96 inch lbs. (12 Nm).
    4.  
    5. Fill the grease cap to the flared edge with high temperature roller bearing grease and install the cap.

      Rotor and caliper
       
      Front wheel

      Click image to see an enlarged view

      Fig. Exploded view of the front wheel bearing assembly-except 4MATIC

       

    6.  

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

      Front wheel
       
      Brake caliper and rotor
       
      Grease cap
       
      Clamping nut and washer
       
      Wheel hub
       
      Grease seal
       
      Bearing
       

    4.  

    To install:

    1. Install or connect the following:

      Bearing
       
      Grease seal
       
      Wheel hub
       
      Washer and clamping nut
       

    2.  
    3. Adjust bearing play. Torque the clamp bolt to 96 inch lbs. (12 Nm).
    4.  
    5. Fill the grease cap to the flared edge with high temperature roller bearing grease and install the cap.

      Rotor and caliper
       
      Front wheel
       

    6.  


      Click image to see an enlarged view

      Fig. Exploded view of the front wheel bearing assembly-c class, CLK 320, e class, S Class and SLK 230


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

      Front wheel
       
      Brake caliper and rotor
       
      Grease cap
       
      Clamping nut and washer
       
      Wheel hub
       
      Grease seal
       
      Bearing
       

    4.  

    To install:

    1. Install or connect the following:

      Bearing
       
      Grease seal
       
      Wheel hub
       
      Washer and clamping nut
       

    2.  
    3. Adjust bearing play. Torque the clamp bolt to 96 inch lbs. (12 Nm)
    4.  
    5. Fill the grease cap to the flared edge with high temperature roller bearing grease and install the cap.
    6.  
    7. Install or connect the following:

      Rotor and caliper
       
      Front wheel

      Click image to see an enlarged view

      Fig. Exploded view of the front wheel bearing assembly-S Class (140), SLK 230 (170), C Class (202), CLK 320 (208) and E Class (210)

       

    8.  

     
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