how to troubleshoot strange smells coming from my Tesla Model 3 Original (2017-2023)?

Solution

1. Preparation

• Tools Required: OBD-II scanner, flashlight, multimeter, inspection mirror
• Allow the vehicle to cool down before performing any inspections.
• Disconnect the battery if working on electrical components.

2. Inspect and Clean the HVAC System

• Sub-steps:
  1. Remove the cabin air filter cover (usually located behind the glove compartment).
  2. Take out the cabin air filter and inspect for dirt or mold; replace if necessary.
  3. Clean the air intake area with a damp cloth to remove dust and debris.
  4. Run the HVAC on high for 10-15 minutes to clear any lingering odors.

3. Address Electrical Issues

• Sub-steps:
  1. Inspect the wiring and connectors around the battery for any signs of damage or overheating.
  2. Use a multimeter to check for proper voltage and continuity in suspect wires.
  3. Repair or replace any damaged wiring or connectors found during the inspection.

4. Repair Coolant Leaks

• Sub-steps:
  1. Locate the source of any visible coolant leaks (hoses, connections, or the radiator).
  2. Tighten any loose connections or replace damaged hoses.
  3. Refill the coolant reservoir with the appropriate Tesla-approved coolant.