my Skoda Octavia NFL (2020-Present) engine shakes at idle, what should I check?

Solution

1. Preparation

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

2. Inspect and Replace Engine Mounts

• Sub-steps:
  • Raise the vehicle using a jack and secure it with jack stands.
  • Visually inspect the engine mounts for cracks, tears, or separation.
  • If damaged, remove the engine mount bolts using a socket set.
  • Replace with new engine mounts, ensuring they are oriented correctly.
  • Torque the bolts to the manufacturer's specifications (refer to the service manual for specific torque values).

3. Check and Replace Spark Plugs

• Sub-steps:
  • Remove the ignition coil by unscrewing the mounting bolt and disconnecting the electrical connector.
  • Remove the spark plug using a spark plug socket.
  • Inspect the spark plug for wear; replace if necessary with OEM parts.
  • Reinstall the spark plug and ignition coil, ensuring a secure fit.

4. Clean or Replace Air Intake Components

• Sub-steps:
  • Remove the air intake duct by loosening the clamps and pulling it off.
  • Inspect the air filter; replace if dirty.
  • Clean any debris from the intake manifold and throttle body using an appropriate cleaner.
  • Reassemble the air intake system securely.

5. Fuel System Pressure Test

• Sub-steps:
  • Locate the fuel pressure test port on the fuel rail.
  • Connect a fuel pressure gauge to the port.
  • Turn the ignition on (do not start) and observe the pressure reading.
  • If pressure is below specifications, inspect the fuel pump and filter for issues.