Volkswagen Passat B8 (2015-2022) engine hesitates during acceleration, what could be wrong?

Solution

1. Preparation

• Gather necessary tools and components.
• Disconnect the battery to ensure safety while working on electrical components.
• Allow the engine to cool before performing any inspections.

2. Inspect and Clean Air Intake

• Tools Required: Screwdriver set, cleaning solvent, cloth.
• Remove the air intake duct by loosening the clamps.
• Inspect for debris or blockages, and clean the MAF sensor with MAF cleaner.
• Reattach the air intake duct securely.

3. Fuel System Inspection

• Tools Required: Fuel pressure gauge, wrench set.
• Locate the fuel rail and connect the fuel pressure gauge.
• Turn the ignition to the "ON" position to check the fuel pressure reading; it should match manufacturer specifications (typically 50-60 psi for many VW models).
• If pressure is low, inspect the fuel pump and fuel filter for clogs or failure.

4. Ignition System Check

• Tools Required: Spark plug socket, multimeter.
• Remove spark plugs and inspect for wear or carbon buildup; replace if needed.
• Check ignition coils with a multimeter to ensure they are functioning correctly.
• Reinstall new spark plugs and ignition coils if replacements are necessary.

5. Throttle Body Cleaning

• Tools Required: Throttle body cleaner, screwdriver set.
• Disconnect the throttle body connector and remove it from the intake manifold.
• Clean the throttle plate and surrounding area using throttle body cleaner.
• Reinstall the throttle body and reconnect the electrical connector.