why is my BMW 5 Series F10/F11 (2010-2017) throttle response so sluggish

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to prevent any electrical shorts.
• Ensure the vehicle is on a level surface and supported by jack stands if needed.

2. Clean the Throttle Body

• Tools Required: Throttle body cleaner, soft cloth, screwdriver set, torx bit set.
• Remove the intake duct connected to the throttle body using the appropriate screwdriver.
• Spray throttle body cleaner onto a soft cloth and wipe the inside of the throttle body to remove carbon buildup.
• Open the throttle plate manually (if necessary) to clean the internal surfaces thoroughly.
• Reattach the intake duct securely.

3. Replace the Throttle Position Sensor (if faulty)

• Tools Required: Socket set, torque wrench.
• Locate the throttle position sensor on the throttle body.
• Disconnect the electrical connector from the TPS.
• Remove the screws or bolts securing the TPS to the throttle body.
• Install the new TPS, ensuring it is aligned correctly and secure it with the screws or bolts.
• Reconnect the electrical connector.

4. Reset the Engine Control Unit (ECU)

• Reconnect the battery.
• Use an OBD-II scanner to clear any fault codes and reset the ECU.
• Start the engine and let it idle for a few minutes to allow the ECU to relearn idle parameters.