why does my BMW X5 F15 (2014-2019) stall when I come to a stop

Safety Warnings

• ⚠Safety Warnings:** Disconnect the battery before working on electrical systems. Allow the engine to cool before servicing.
• ⚠Remove the air intake duct connected to the throttle body using a socket set.
• ⚠Spray throttle body cleaner onto a clean cloth and carefully wipe the inside of the throttle body to remove carbon deposits.
• ⚠Ensure the throttle plate moves freely; operate it manually if necessary.
• ⚠Reattach the air intake duct and ensure all clamps are secure.
• ⚠Disconnect the electrical connector from the MAF sensor.
• ⚠Remove the MAF sensor from the air intake duct using a socket set.
• ⚠Spray MAF cleaner onto the sensor elements to remove dirt and debris. Allow it to dry completely.
• ⚠Reinstall the MAF sensor and reconnect the electrical connector.
• ⚠Locate the fuel pressure test port on the fuel rail.
• ⚠Attach the fuel pressure gauge to the test port and turn the ignition to the "ON" position without starting the engine.
• ⚠Check the fuel pressure; it should meet manufacturer specifications (typically around 50-60 PSI for most BMW models).
• ⚠If pressure is low, inspect the fuel pump and filter for issues.
• ⚠Locate the idle air control valve (IAC) on the engine.
• ⚠Remove the IAC valve using a socket set and inspect it for carbon buildup.
• ⚠Clean the valve with throttle body cleaner; if it's faulty, replacement may be necessary.
• ⚠Reinstall the IAC valve and ensure proper connections.
• ⚠Test drive the vehicle to ensure it no longer stalls when coming to a stop.
• ⚠Check for any reoccurring error codes using the OBD-II scanner.
• ⚠Monitor the idle quality during stops to verify smooth operation.
• ⚠Observe fuel efficiency over the next few fuel tanks to check for improvement.
• ⚠Regularly clean the throttle body and MAF sensor as part of routine maintenance.
• ⚠Replace the engine air filter according to the manufacturer's schedule.
• ⚠Use high-quality fuel to prevent fuel system issues.
• ⚠Address any engine warning lights promptly to avoid future stalling problems.