what causes the AC to stop blowing cold air in my BMW X5 F15 (2014-2019)

Solution

1. Preparation

• Gather the required tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Disconnect the battery to prevent any electrical shorts.

2. Refill Refrigerant

• Connect the manifold gauge set to the low and high-pressure ports of the AC system.
• If the refrigerant level is low, add the appropriate type of refrigerant (R-134a or R-1234yf) as specified by the manufacturer.
• Monitor the pressure gauges to achieve the correct operating pressure.

3. Replace AC Compressor (if necessary)

• Remove the front grille if needed for access.
• Disconnect the electrical connector and hoses from the AC compressor.
• Unbolt the compressor using a socket set (consult the torque specifications for reassembly).
• Install the new compressor, ensuring all seals are properly fitted and the torque specifications are followed.
• Reconnect the hoses and electrical connections.

4. Replace Cabin Air Filter (if clogged)

• Locate the cabin air filter housing, usually behind the glove compartment.
• Remove the glove compartment for access if required.
• Remove the old filter and replace it with a new one, ensuring the airflow direction matches the markings.

5. Reassemble and Test

• Reconnect the battery.
• Start the engine and turn on the AC system to the maximum setting.
• Observe whether cold air begins to flow and if the AC compressor engages properly.