why is my BMW 5 Series G30/G31 (2017-2024) losing power during acceleration

Solution

1. Preparation

• Gather all necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the battery to ensure safety while working on electrical components.

2. Address Fuel System Issues

• Check Fuel Filter:

  • Locate the fuel filter; it may be integrated into the fuel pump in some models.
  • Replace the fuel filter if clogged or due for maintenance.

• Test and Replace Fuel Pump (if needed):

  • Connect a fuel pressure gauge to the fuel rail.
  • Start the engine and monitor pressure readings. Replace the fuel pump if pressure is below specifications.

3. Inspect and Replace Ignition Components

• Inspect Spark Plugs:

  • Remove the ignition coils and spark plugs.
  • Check for wear or carbon buildup. Replace spark plugs if necessary.

• Check Coil Packs:

  • Test each ignition coil with a multimeter. Replace any faulty coils.

4. Clean or Replace Air Intake Components

• Inspect Air Filter:

  • Remove and inspect the air filter for dirt and debris. Replace if necessary.

• Clean Mass Airflow Sensor:

  • Use mass airflow sensor cleaner; gently clean the sensor elements without touching them.

5. Examine Exhaust System

• Check for Blockages:
  • Inspect the exhaust system visually and listen for unusual sounds.
  • If a blockage is suspected, consult a professional for a thorough inspection of the catalytic converter.