my BMW X5 F15 (2014-2019) has a bad smell from the AC, how to clean it

Solution

1. Preparation

• Gather all necessary tools and parts.
• Ensure the vehicle is parked in a well-ventilated area.
• Disconnect the vehicle's battery to avoid electrical issues.

2. Remove Cabin Air Filter

• Locate the cabin air filter housing, usually behind the glove compartment.
• Remove the glove compartment by unscrewing screws and unclipping it.
• Take out the old cabin air filter and inspect it for dirt and debris.
• Tools Required: Screwdriver set

3. Clean the Evaporator Core

• Use an evaporator cleaner spray and spray it directly onto the evaporator core through the access point.
• Allow it to sit for the recommended time as per the product instructions.
• Use a soft brush to gently scrub the area if necessary.
• Tools Required: Evaporator cleaner spray, soft brush

4. Clear Drain Tube

• Locate the AC drain tube, which is typically found under the vehicle.
• Use compressed air or a thin wire to clear any blockages in the drain tube.
• Ensure that water can flow freely through the drain tube.
• Tools Required: Compressed air, thin wire

5. Install New Cabin Air Filter

• Insert a new, high-quality cabin air filter into the housing.
• Reattach the glove compartment securely.

6. Test the System

• Reconnect the battery.
• Turn on the AC and set it to the recirculate mode for several minutes to circulate the cleaner through the system.
• Tools Required: None