my Porsche 911 992 (2019-Present) AC blows hot air what could be wrong

Solution

1. Preparation

• Tools Required: OBD-II scanner, manifold gauge set, socket set, multimeter, flathead screwdriver.
• Disconnect the battery to ensure safety while working on electrical components.

2. Refrigerant Recharge

• Sub-steps:
  1. Connect the manifold gauge set to the high and low-pressure ports on the AC system.
  2. Check the pressure readings against manufacturer specifications.
  3. If low, proceed to add refrigerant according to specifications using the correct type (R-134a or R-1234yf).
  4. Monitor pressure during the refill to avoid overcharging.

3. AC Compressor Replacement (if necessary)

• Sub-steps:
  1. Remove any components obstructing access to the AC compressor (e.g., intake ducts).
  2. Disconnect the electrical connector from the AC compressor.
  3. Remove the refrigerant lines connected to the compressor, using a line wrench to prevent damage.
  4. Unbolt the compressor from the mounting brackets and remove it from the engine bay.
  5. Install the new compressor by reversing the removal steps, ensuring to use new O-rings for refrigerant lines.

4. Cabin Air Filter Replacement

• Sub-steps:
  1. Locate the cabin air filter compartment, usually behind the glove box.
  2. Remove the glove box if necessary to access the filter.
  3. Remove the old cabin air filter and replace it with a new one.
  4. Reassemble any components that were removed.