my Skoda Octavia's engine light is on what should I do

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Ensure the vehicle is parked on a flat surface and the engine is cool.
• Disconnect the battery to prevent any electrical shorts during inspection.

2. Address Fault Codes

• Sub-step 1: Use the OBD-II scanner to read and document the error codes.
• Sub-step 2: Research the error codes to determine their significance and associated symptoms.
• Sub-step 3: Clear the codes using the scanner and take the vehicle for a test drive to see if the codes reappear.

3. Inspect and Replace Components

• Sub-step 1: If codes relate to spark plugs or coils, remove the ignition cover and unscrew the spark plugs using a socket wrench.
• Sub-step 2: Inspect the spark plugs for wear; replace them if necessary with OEM parts, tightening them to the manufacturer's specified torque (usually around 15-20 Nm).
• Sub-step 3: If coils are faulty, unplug the electrical connectors and replace them, ensuring they fit snugly.

4. Check and Replace Filters

• Sub-step 1: Remove the air filter housing cover to access the air filter.
• Sub-step 2: Inspect the air filter for dirt and blockages; replace if necessary with a new one.
• Sub-step 3: Ensure the housing is sealed properly before reattaching the cover.

5. Reassemble and Test

• Sub-step 1: Reconnect the battery terminal securely.
• Sub-step 2: Start the engine and let it idle; check for any abnormal sounds or vibrations.
• Sub-step 3: Take the vehicle for a test drive to verify the check engine light remains off.