Drive Unit - Front (Remove and Install)

Correction code 3901210139012101
  • 1133386-00-ATool, Axle Extraction, Model 3
  • 1130279-00-ALifting Sling, Drive Unit, Model 3 (NA, APAC)
  • 1130279-01-ALifting Sling, Drive Unit, Model 3 (EMEA)

SPECIAL TOOLS

Tool, Axle Extraction, Model 3 (1133386-00-A)
Lifting Sling, Drive Unit, Model 3 (NA, APAC) (1130279-00-A)
Lifting Sling, Drive Unit, Model 3 (EMEA) (1130279-01-A)

Remove

  1. Remove the front subframe assembly from the vehicle. See Subframe Assembly - Front (Dual Motor) (Remove and Install).
  2. Install an axle extraction tool between the front drive unit and the inner joint of the LH front drive unit halfshaft, and then strike the end of the extraction tool with a dead blow hammer to unseat the halfshaft.
  3. With assistance, remove the LH front drive unit halfshaft from the front drive unit, and then install a halfshaft plug into the opening of the gearbox.
  4. Repeat steps 2 to 3 on the RH front drive unit halfshaft.
  5. Release the locking tab, and then push the handle downward to disconnect the front drive unit inverter logic connector.
  6. Release the red locking tab, and then press down on the tab to disconnect the resolver logic connector.
  7. Release the grey locking tab, and then press down on the tab to disconnect the oil pump connector.
  8. Release the clip that attaches the front drive unit harness to the front drive unit motor.
  9. Release the clips that attach the front drive unit harness to the front drive unit inverter.
  10. Remove the steering rack. See Steering Rack (RWD) (Remove and Replace).
  11. Position the subframe assembly under the gantry.
  12. Install the drive unit sling onto the gantry hook.
  13. Install the drive unit sling hooks onto the front drive unit.
    Front drive unit sling hook locations
  14. Slightly raise the gantry hook until the drive unit sling is taut.
  15. Remove the bolt that attaches the front drive unit to the front subframe.
  16. Lift the front drive unit up and away from the front subframe.
    Note: Make sure not to move the rear front drive unit support posts.
1Remove the front subframe assembly from the vehicle. See Subframe Assembly - Front (Dual Motor) (Remove and Install).
2Install an axle extraction tool between the front drive unit and the inner joint of the LH front drive unit halfshaft, and then strike the end of the extraction tool with a dead blow hammer to unseat the halfshaft.
3With assistance, remove the LH front drive unit halfshaft from the front drive unit, and then install a halfshaft plug into the opening of the gearbox.
4Repeat steps 2 to 3 on the RH front drive unit halfshaft.
5Release the locking tab, and then push the handle downward to disconnect the front drive unit inverter logic connector.
6Release the red locking tab, and then press down on the tab to disconnect the resolver logic connector.
7Release the grey locking tab, and then press down on the tab to disconnect the oil pump connector.
8Release the clip that attaches the front drive unit harness to the front drive unit motor.
9Release the clips that attach the front drive unit harness to the front drive unit inverter.
10Remove the steering rack. See Steering Rack (RWD) (Remove and Replace).
11Position the subframe assembly under the gantry.
12Install the drive unit sling onto the gantry hook.
Front drive unit sling hook locations
13Install the drive unit sling hooks onto the front drive unit.
14Slightly raise the gantry hook until the drive unit sling is taut.
15Remove the bolt that attaches the front drive unit to the front subframe.
16Lift the front drive unit up and away from the front subframe.
Note: Make sure not to move the rear front drive unit support posts.

Install

  1. Lower the front drive unit onto the front subframe.
    Note: Make sure not to move the rear front drive unit support posts from their previous positions.
  2. Install the bolt that attaches the front drive unit to the front subframe.
    Torque 80 Nm
  3. Lower the gantry hook until the drive unit sling is slack.
  4. Remove the drive unit sling hooks from the front drive unit.
  5. Remove the drive unit sling from the gantry hook.
  6. Move the subframe lifting tool to a working area.
  7. Install the steering rack. See Steering Rack (RWD) (Remove and Replace).
  8. Install the clips that attach the front drive unit harness to the front drive unit inverter.
  9. Install the clip that attaches the front drive unit harness to the front drive unit motor.
  10. Connect the oil pump connector, and then engage the locking tab.
    Important: Perform a push-pull test to verify that the connector is fully attached.
  11. Connect the resolver logic connector, and then engage the locking tab.
    Important: Perform a push-pull test to verify that the connector is fully attached.
  12. Connect the front drive unit inverter logic connector, close the handle, and then engage the locking tab.
    Important: Perform a push-pull test to verify that the connector is fully attached.
  13. Remove the halfshaft plugs from the gearbox, and then install the LH and RH front drive unit halfshafts into the front drive unit.
  14. Install the front subframe assembly on the vehicle. See Subframe Assembly - Front (Dual Motor) (Remove and Install).
1Lower the front drive unit onto the front subframe.
Note: Make sure not to move the rear front drive unit support posts from their previous positions.
2Install the bolt that attaches the front drive unit to the front subframe.
Torque 80 Nm
3Lower the gantry hook until the drive unit sling is slack.
4Remove the drive unit sling hooks from the front drive unit.
5Remove the drive unit sling from the gantry hook.
6Move the subframe lifting tool to a working area.
7Install the steering rack. See Steering Rack (RWD) (Remove and Replace).
8Install the clips that attach the front drive unit harness to the front drive unit inverter.
9Install the clip that attaches the front drive unit harness to the front drive unit motor.
10Connect the oil pump connector, and then engage the locking tab.
Important: Perform a push-pull test to verify that the connector is fully attached.
11Connect the resolver logic connector, and then engage the locking tab.
Important: Perform a push-pull test to verify that the connector is fully attached.
12Connect the front drive unit inverter logic connector, close the handle, and then engage the locking tab.
Important: Perform a push-pull test to verify that the connector is fully attached.
13Remove the halfshaft plugs from the gearbox, and then install the LH and RH front drive unit halfshafts into the front drive unit.
14Install the front subframe assembly on the vehicle. See Subframe Assembly - Front (Dual Motor) (Remove and Install).