why does my BMW 5 Series F10/F11 (2010-2017) have a loss of power when accelerating

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to ensure safety while working on electrical components.

2. Air Filter Replacement

• Remove the air filter housing cover using a socket set.
• Take out the old air filter and inspect the housing for debris.
• Install a new air filter, ensuring it fits snugly, and reassemble the air filter housing.

3. Fuel System Inspection

• Connect a fuel pressure gauge to the fuel rail.
• Turn the ignition to the "ON" position (without starting the engine) to check the fuel pressure reading.
  • If the pressure is below specifications, replace the fuel pump and filter.
• If the pressure is within specifications, reconnect and ensure all connections are secure.

4. Ignition System Maintenance

• Remove the ignition coils using a socket set.
• Inspect spark plugs for wear or carbon buildup; replace if necessary.
• Reinstall the ignition coils and ensure they are seated properly.

5. Throttle Body Cleaning

• Remove the throttle body from the intake manifold using a socket set.
• Clean the throttle body with throttle body cleaner, focusing on the butterfly valve and surrounding areas.
• Reinstall the throttle body and reconnect all electrical connectors.

6. Exhaust System Check

• Inspect the exhaust system for any visible signs of damage or blockage.
• If a clogged catalytic converter is suspected, perform a backpressure test.
• Replace the catalytic converter if it's found to be excessively clogged.