my Toyota Camry Eighth Generation (2018-present) has a weird smell when I turn on the heater

Solution

1. Preparation

• Gather tools and materials.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the battery to avoid electrical shorts.

2. Replace Cabin Air Filter

1. Locate the cabin air filter compartment, typically found behind the glove box.
2. Remove the glove box by unscrewing or unclipping it.
3. Take out the old cabin air filter and inspect it for dirt and debris.
4. Insert a new cabin air filter, ensuring it is oriented correctly.
5. Reattach the glove box and secure it.

3. Clean HVAC System

1. Purchase an HVAC cleaning spray designed for automotive systems.
2. With the engine running and heater on high, spray the cleaner into the outside air intake, usually located at the base of the windshield.
3. Allow the product to work for the recommended time on the label, usually around 10-15 minutes.
4. Turn off the engine and allow the cleaner to settle.

4. Inspect and Repair Heater Core

1. Locate the heater core hoses under the hood.
2. Disconnect both hoses from the heater core.
3. Check for any leaks or damage to the heater core.
4. If damaged, remove the heater core by disconnecting additional mounting hardware and replacing it with a new unit.
5. Reconnect the hoses and ensure clamps are secure.

5. Final Assembly

• Reconnect the battery.
• Start the engine and turn on the heater to check for any remaining odors.
• Ensure that the airflow is strong and consistent.