Tesla Model X: Drive Unit - Rear - Large (Installation)

Installation

Caution: Replace all Patchbolt(s).

Caution: Replace all nylon-insert locknuts.

Caution: Ensure that the new halfshaft has a snap-ring already installed. If it does not, then install a different halfshaft that has a snap-ring already installed. Return any halfshafts without a snap-ring using the MRB process. Do not remove or reuse snap-rings.

• When installing the halfshaft into the drive unit:
  • Ensure that the opening of the snap ring is facing towards the bottom of the drive unit.
  • Do not damage or displace the oil seal.
  • Verify that the halfshaft is fully seated by carefully pushing it into the drive unit until there is an audible "click" from the snap ring.
• Ensure that the drive unit is equipped with a bracket that correctly routes the HV cables. If necessary, install a screw and bracket to correctly route the HV cables (torque 8 Nm). Note: Components have been removed in this graphic to aid clarity.

  

• If both the front and rear drive units were removed at the same time, the vacuum refill tool must be used to refill the cooling system (refer to procedure).
• Refill the gearbox with the recommended fluid.
• Transfer the vehicle to a 4 post lift (refer to procedure).
• Air suspension only: Set the suspension height to "Normal".
• Caution: Only fully tighten suspension nuts and bolts when the vehicle is on a 4-post lift and the suspension is in the ride height position.
• Perform a four wheel alignment (refer to procedure).
• Use Toolbox to update or redeploy the firmware:
  • If the vehicle is not running the latest firmware, run the "Vehicle Firmware Update" procedure.
  • If the vehicle is running the latest firmware, run the "Firmware Redeploy" procedure.