Tesla Model S Owners & Service Manuals

Tesla Model S: Subframe Assembly - Rear (Remove and Install) - Installation

Tesla Model S (2012-2024) Service Manual / Chassis / Subframe Assembly - Rear (Remove and Install) / Subframe Assembly - Rear (Remove and Install) - Installation

Installation

Installation procedure is the reverse of removal, except for the following:

Warning: Only use cleaning agents and solvents in a well-ventilated area.

Caution: Replace all nylon-insert locknuts.

Caution: Ensure that the bolt that secures the spring assembly to the knuckle is inserted towards the rear of the vehicle; the head of the bolt faces the front of the vehicle and the nut is tightened at the rear.

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.

Note: Clean the affected areas before installation.

  1. Large Drive Units built before October 2014 only: Ensure that no harnesses or cable ties press into the acoustic padding upon reinstallation. Refer to TN-14-40-002, Noise Path for Motor Hum, for more information.
    1. Ensure that the 12V harness does not rest on top of either of the arches on the subframe.

      Note: Rotating the clip that secures the harness to the subframe helps to position the harness properly.

      Subframe Assembly - Rear (Remove and Install) - Installation Subframe Assembly - Rear (Remove and Install) - Installation

      1 Correct: Clip rotated.
      2 Correct: Harness routed inboard of subframe.
      3 Incorrect: Harness routed on top of subframe.
    2. Replace the cable ties that secure the HV cables when the subframe is reinstalled. Ensure that the 12V harness is routed beneath the cable ties.

      Subframe Assembly - Rear (Remove and Install) - Installation

    3. Ensure that the rearmost section of the 12V harness is secured to the subframe with cable ties. The harness should extend out from the rear of the subframe as little as possible.

      LH side

      LH side LH side

      1 Correct: The harness is secure and does not extend past the rear of the subframe.
      2 Incorrect: The harness is loose and extends past the rear of the subframe.

      Middle

      Middle Middle

      1 Correct: The harness is secured to the rear of the subframe.
      2 Incorrect: The harness is not secured to the rear of the subframe.

      RH side

      RH side RH side

      1 Correct:The harness is secure and does not extend past the rear of the subframe.
      2 Incorrect:The harness is loose and extends past the rear of the subframe.
    4. After connecting the HV cables to the drive unit, reach above the drive unit and pull the cables as far forward as possible.

      Note: When securing the HV cables to the subframe, ensure that the ratchets on the cable ties do not press into the acoustic padding

      Subframe Assembly - Rear (Remove and Install) - Installation

  2. After connecting the electric parking brake caliper harnesses, install plastic park brake connector covers.
  3. Small drive units only:
    1. Inspect the connector seals on the HV cables. If any are damaged, replace them.
    2. Apply P-80 emulsion to the connector seals. Caution: Do not apply P-80 emulsion to the HV terminals.

      Subframe Assembly - Rear (Remove and Install) - Installation

    3. Resecure the HV cables to the motor.
  4. Large drive units only: To prevent future water ingress, install new O-rings (1003784-00-A or later) on the drive inverter cover and apply Silicone Lubricant (1010251-00-A) on both before installing the cover. Insert the cover at an angle to prevent damage to the O-rings. Once the left (B+) O-ring is seated, rotate the cover into position.

    Subframe Assembly - Rear (Remove and Install) - Installation

  5. Remove the suspension from "Jack" mode. Set the suspension to Standard and allow the suspension to settle.
  6. Refill and bleed the cooling system (refer to procedure). Note: Check for coolant leaks while performing the refill and bleed procedure.
  7. Perform a four wheel alignment (refer to procedure).

    READ NEXT:

     Subframe Assembly - Rear (Remove and Replace)

    Removal Remove the rear drive unit: Small drive unit: Refer to procedure. Large drive unit: Refer to procedure. Remove the rear

     Subframe Assembly - Front (Remove and Install)

    Special tools required for this procedure: Supplier Part Number Description

     Subframe Assembly - Front (Remove and Replace)

    Removal Remove front subframe assembly for access (refer to procedure) Remove and discard the bolts (x2) securing steering rack assembly to subframe (torque 175 Nm).

    SEE MORE:

     Condenser - Gas Cool (Remove and Replace)

    Removal Recover refrigerant from the vehicle (refer to procedure) Remove front aero shield panel (refer to procedure) Remove front LH wheel arch liner (refer to procedure) Remove bolts (x2) securing front bumper panel support bar and remove (torque 11 Nm).

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