why does my BMW 5 Series F10/F11 (2010-2017) stall when I come to a stop

Solution

1. Preparation

• Gather tools: OBD-II scanner, fuel pressure gauge, multimeter, socket set, torque wrench.
• Disconnect the battery to ensure safety while working on electrical components.

2. Clean or Replace Throttle Body

• Remove the throttle body:
  1. Disconnect the electrical connector.
  2. Remove any hoses attached to the throttle body.
  3. Unbolt the throttle body using the appropriate socket.
• Clean the throttle body with throttle body cleaner and a soft cloth.
• If damaged, replace it with a new throttle body.
• Reinstall the throttle body and reconnect all hoses and electrical connectors.

3. Check and Replace Fuel Filter

• Locate the fuel filter, typically found along the fuel line.
• Release fuel pressure by removing the fuel pump fuse and running the engine until it stalls.
• Disconnect the fuel lines from the filter using the appropriate tools.
• Replace the old filter with a new one, ensuring proper orientation.
• Reconnect the fuel lines and fuse.

4. Inspect and Replace MAF Sensor

• Locate the MAF sensor in the air intake duct.
• Disconnect the electrical connector from the MAF sensor.
• Remove the sensor from its housing.
• Clean the sensor with MAF cleaner or replace it if faulty.
• Reinstall the sensor and reconnect the electrical connector.

5. Vacuum Hose Inspection and Replacement

• Inspect all vacuum hoses for cracks or disconnections.
• Replace any damaged hoses with OEM or high-quality aftermarket parts.
• Ensure all connections are tight and secure.