why is my Porsche Cayenne E3 (2018-Present) air conditioning not working properly?

Solution

1. Preparation

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

2. Recharge Refrigerant

• Tools Required: Manifold gauge set, refrigerant canister, vacuum pump.
• Connect the manifold gauge set to the low and high-pressure ports of the AC system.
• Start the engine and turn the AC to maximum cooling.
• If refrigerant levels are low, use a vacuum pump to evacuate the system for at least 30 minutes.
• Recharge the system with the correct type and amount of refrigerant specified in the owner's manual.

3. Replace Cabin Air Filter

• Tools Required: Screwdriver or appropriate tool for trim removal.
• Locate the cabin air filter housing, usually positioned behind the glove box.
• Remove the glove box or access panel to reach the filter.
• Remove the old filter, noting its orientation, and install a new one.
• Reassemble the glove box or access panel.

4. Inspect and Replace AC Compressor (if necessary)

• Tools Required: Socket set, torque wrench, refrigerant recovery machine.
• Disconnect the refrigerant lines from the compressor, ensuring appropriate recovery of refrigerant.
• Remove mounting bolts securing the compressor to the engine.
• Install the new compressor, ensuring proper torque specifications are followed.
• Reconnect refrigerant lines and recharge the AC system.