why does my Tesla Model S Plaid/Refresh (2021-present) shake when I brake?

Solution

1. Preparation

• Gather tools and equipment: jack stands, lug wrench, torque wrench, dial indicator, and OBD-II scanner.
• Ensure the vehicle is on a flat surface and the parking brake is engaged.
• Disconnect the 12V battery to ensure safety while working on the braking system.

2. Inspect and Replace Brake Rotors

• Sub-step 1: Remove the wheel using a lug wrench.
• Sub-step 2: Inspect the brake rotor using a dial indicator; if warping is detected (beyond manufacturer specs), proceed to replace.
• Sub-step 3: Remove the caliper bolts and lift the caliper away from the rotor. Support the caliper with a bungee cord to avoid straining the brake line.
• Sub-step 4: Remove the rotor from the hub. If the rotor is stuck, tap it gently with a rubber mallet.
• Sub-step 5: Install the new rotor; ensure it is seated fully against the hub.
• Sub-step 6: Reinstall the caliper and torque bolts to manufacturer's specification (typically around 85-90 ft-lbs).

3. Inspect and Replace Brake Pads

• Sub-step 1: Remove the brake pads from the caliper bracket.
• Sub-step 2: Inspect for uneven wear; if necessary, replace with high-quality brake pads.
• Sub-step 3: Apply brake grease to the backing of the new pads to prevent squeaking.
• Sub-step 4: Reinstall the brake pads and caliper.

4. Suspension Component Inspection

• Sub-step 1: Check control arms and bushings for any signs of wear or excessive play.
• Sub-step 2: If any components are damaged, replace them as needed.

5. Wheel Alignment and Balance

• Sub-step 1: After reassembling, take the vehicle for a wheel alignment and balance to ensure proper handling.