Brake Service Kits & Actuator Shoe Kit LH for Tesla Model Y/3 (2022-) | 8008277-00-A

1. Core Function & System Integration

• Dual-Purpose Design:
  • Actuator Shoe Kit LH (left-hand side): Integrates with the rear brake caliper’s electric parking brake (EPB) system, providing mechanical clamping force for 驻车制动 and emergency braking .
  • Brake Service Kit: Includes high-friction brake pads, wear sensors, and anti-rattle hardware optimized for regenerative braking systems .
• Electronic Control Integration:
  • Communicates with the Vehicle Control Module (VCM) to synchronize EPB activation/deactivation with regenerative braking torque adjustments .
  • Features overload protection to prevent damage from excessive clamping force during hard braking .
• Environmental Resilience:
  • Brake pads with ceramic composite material resist fade at high temperatures (up to 650°C) and reduce dust by 40% compared to traditional pads .
  • Actuator shoes coated with zinc-nickel plating for corrosion resistance in salted winter roads or high-humidity environments .

2. Specification Parameter Table

3. Fault Diagnosis & Replacement Triggers

• EPB Malfunction Alerts: Dashboard warnings like "Parking Brake Fault" or "Actuator Unresponsive" Tesla.
• Mechanical Stiffness: Brake pedal feels spongy or requires excessive force to engage/disengage the parking brake.
• Abnormal Noises: Grinding or clicking from the rear brakes during EPB activation, indicating worn actuator gears or contaminated shoes .
• Reduced Braking Performance: Longer stopping distances or inconsistent pedal feedback, often caused by glazed brake pads or misaligned actuator shoes.

• Actuator Gear Wear: Due to corrosion from road salt or moisture ingress .
• Brake Pad Glazing: Overheating from frequent regenerative braking overload.
• Wear Sensor Failure: False alerts due to debris accumulation on the sensor surface.

4. Installation & Maintenance

Step-by-Step Guide

1. Pre-Installation:
   • Disconnect the 12V battery and disable the high-voltage system via the touchscreen Tesla.
   • Place the vehicle in EPB Service Mode using Tesla’s diagnostic tool (e.g., Toolbox 3.0) Tesla.
2. Removal:
   • Remove the rear wheel and brake caliper (2x T30 Torx bolts, 8 Nm) Tesla.
   • Detach the EPB actuator harness and unbolt the actuator (2x M8 bolts, 12 Nm) .
   • Extract the old actuator shoes using a small pry bar, taking care not to damage the caliper piston.
3. Installation:
   • Clean the caliper piston and actuator housing with isopropyl alcohol.
   • Apply high-temperature lithium grease (e.g., CRC 655) to the actuator shoe contact surfaces.
   • Align the new actuator shoes with the caliper piston grooves and secure the actuator with new bolts.
   • Reinstall the caliper and wheel, torquing the lug nuts to 175 Nm in a star pattern Tesla.
4. Post-Installation:
   • Re-enable the high-voltage system and reset the EPB via the touchscreen.
   • Perform a brake burnishing procedure (5 hard stops from 60 km/h to 0 km/h) to seat the new pads Tesla.

Tools Required

• Torque wrench (0–200 Nm range), T30 Torx bit, 10mm socket, brake caliper spreader tool.
• Tesla-approved diagnostic tool for EPB calibration.

5. Advantages Over Aftermarket Alternatives

6. Warranty & Recall Support

• Standard Warranty: 4-year/80,000 km coverage for defects in materials or workmanship.
• Recall Status:
  • This part is not currently under recall, but check your vehicle’s VIN on Tesla’s recall portal for updates Tesla.
  • For EPB-related issues, Tesla offers free software updates to address firmware bugs .

7. Critical Maintenance Tips

1. Lubrication: Apply silicone grease to the actuator shoe guide rails every 20,000 km to prevent sticking.
2. Brake Fluid Check: Replace DOT 5.1 fluid every 4 years to maintain hydraulic performance Tesla.
3. Software Updates: Keep the vehicle’s firmware current to optimize EPB-actuator communication.