how to troubleshoot transmission fluid leaks on Tesla Model S Plaid/Refresh (2021-present)?

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the battery is disconnected before starting work.

2. Locate the Leak

• Sub-steps:
  • Clean the area around the transmission pan and lines with a degreaser.
  • Use a flashlight to inspect for wet areas indicating a leak.

3. Repair or Replace Seals

• Sub-steps:
  • If the transmission pan gasket is leaking, drain the transmission fluid into a clean container.
  • Remove the transmission pan bolts using a socket set and carefully detach the pan.
  • Replace the old gasket with a new one, ensuring the surface is clean.
  • Reinstall the pan and torque the bolts to the manufacturer’s specifications (consult service manual for exact torque values).

4. Replace Damaged Lines

• Sub-steps:
  • If the cooler lines are damaged, disconnect the lines at the transmission and the cooler.
  • Install the new transmission cooler lines and ensure all connections are secure.
  • Refill the transmission fluid to the correct level as specified in the owner's manual.

5. Final Check

• Sub-steps:
  • Reconnect the battery.
  • Start the vehicle and let it run, then check for leaks again.
  • Test drive the vehicle to ensure proper transmission function.