my Skoda Octavia NFL (2020-Present) engine knocks when accelerating

Solution

1. Preparation

• Gather tools and parts.
• Ensure the vehicle is parked on a flat surface and the engine is cool.
• Disconnect the battery to prevent electrical shorts.

2. Check and Change Engine Oil

• Sub-steps:
  1. Remove the oil drain plug using a socket wrench and drain the old oil into a suitable container.
  2. Replace the oil filter using an oil filter wrench to ensure proper sealing.
  3. Reinstall the drain plug with a torque of approximately 25 Nm (18 lb-ft).
  4. Refill the engine with high-quality oil that meets manufacturer specifications (check the owner's manual for the correct oil type).
  5. Start the engine and let it idle for a few minutes, then check for leaks.

3. Replace Spark Plugs

• Sub-steps:
  1. Remove the engine cover (if present) using the appropriate socket.
  2. Disconnect the ignition coil connectors and remove the coils using a socket.
  3. Use a spark plug socket to remove the old spark plugs.
  4. Inspect the spark plug gap; adjust or replace with new plugs if necessary (set gap according to manufacturer specifications).
  5. Install new spark plugs and torque to manufacturer specifications (usually around 25 Nm or 18 lb-ft).
  6. Reinstall ignition coils and reconnect the connectors.

4. Check Fuel Quality

• Sub-steps:
  1. Verify the fuel octane rating; switch to a higher octane fuel if necessary.
  2. Consider adding a fuel system cleaner to remove deposits, if applicable.

5. Inspect Timing Components

• Sub-steps:
  1. Remove any components obstructing access to the timing belt/chain cover.
  2. Visually inspect for wear and ensure proper tension.
  3. If necessary, replace the timing belt/chain according to the maintenance schedule.