why does my Porsche 911 992 (2019-Present) AC blow warm air?

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the vehicle battery to ensure safety while working on electrical components.

2. Recharge Refrigerant

• Tools Required: Manifold gauge set, refrigerant (R134a or R1234yf depending on the system), safety goggles, gloves.
• Attach the manifold gauges to the high and low-pressure service ports of the AC system.
• Start the engine and turn the AC to maximum cooling.
• Check the low and high-pressure readings; if low, proceed to recharge the system.
• Follow the refrigerant manufacturer's instructions to add the correct amount of refrigerant to the system.

3. Repair or Replace AC Components

• Tools Required: Socket set, wrench set, screwdrivers.
• If the diagnosis indicated a faulty compressor, remove the drive belt from the compressor.
• Disconnect the electrical connector and refrigerant lines from the compressor.
• Remove the mounting bolts and take out the old compressor.
• Install the new compressor by reversing the removal steps and ensuring all connections are secure.

4. Clear DTCs

• Tools Required: OBD-II scanner.
• Reconnect the vehicle battery.
• Use the OBD-II scanner to clear any diagnostic trouble codes that may have been set during the AC malfunction.

5. Test the System

• Run the vehicle and set the AC to maximum cooling.
• Monitor the temperature at the vents to ensure the system is now blowing cold air.