why does my Volkswagen Golf MK7 (2015-2019) hesitate when I accelerate?

Solution

1. Preparation

• Gather all necessary tools and parts.
• Park the vehicle on a level surface and engage the parking brake.
• Disconnect the negative battery terminal to ensure safety.

2. Clean or Replace Air Filter

• Remove the air filter housing cover using a socket set.
• Take out the old air filter and inspect it for dirt and blockage.
• If dirty, replace it with a new air filter; if reusable, clean it according to manufacturer instructions.
• Reinstall the air filter housing cover securely.

3. Inspect and Clean Throttle Body

• Remove the throttle body by disconnecting the electrical connector and loosening the mounting screws.
• Clean the throttle body with throttle body cleaner and a soft cloth, paying attention to the butterfly valve.
• Reinstall the throttle body and reconnect the electrical connector.

4. Check and Replace Spark Plugs and Ignition Coils

• Remove the engine cover (if applicable) to access the ignition components.
• Unscrew the spark plugs using a socket wrench, and inspect them for wear.
• Replace with new spark plugs, ensuring correct gap specifications.
• Inspect ignition coils for cracks or damage and replace if necessary.

5. Inspect and Test Fuel System

• Attach a fuel pressure gauge to the fuel rail and turn the ignition on (do not start the engine) to check the fuel pressure.
• If pressure is low, check the fuel pump and fuel filter for issues.
• Replace the fuel filter if it is clogged, and consider testing or replacing the fuel pump if necessary.