my Porsche 911 992 (2019-Present) differential makes whining noises

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Park the vehicle on a level surface and set the parking brake.
• Raise the rear of the vehicle using a hydraulic lift or jack stands.

2. Inspect and Change Differential Fluid

• Tools Required: Socket set, torque wrench, fluid pump.
• Remove the differential fill plug using a socket wrench.
• Check the fluid level; if low, drain the fluid from the drain plug.
• Inspect the fluid for metal shavings or discoloration, indicating wear.
• Replace with manufacturer-recommended differential fluid (e.g., Porsche OE fluid).
• Sub-steps:
  • Clean the drain plug and magnet before reinstalling.
  • Reinstall the drain plug and torque to manufacturer specifications.
  • Refill the differential through the fill hole until fluid begins to seep out.

3. Inspect Differential Components

• Tools Required: Socket set, pry bar.
• Remove the differential cover if necessary to visually inspect the gears and bearings.
• Sub-steps:
  • Check for signs of wear or damage on the gears and bearings.
  • Rotate the differential manually to listen for any grinding noises.
  • If necessary, replace any worn or damaged components.

4. Reassemble and Reinstall

• Tools Required: Torque wrench.
• Reinstall the differential cover and torque bolts to specifications.
• Reinstall the fill plug and ensure it is secure.