how to fix the AdBlue warning light on Skoda Octavia NFL (2020-Present)

Solution

1. Preparation

• Gather all necessary tools and parts.
• Ensure the vehicle is parked on a flat surface, and the engine is off.
• Wear protective gloves and eyewear.

2. Check and Refill AdBlue

• Tools Required: AdBlue fluid container, funnel.
• If the AdBlue level is low, remove the AdBlue cap from the reservoir.
• Insert the funnel and fill the reservoir with fresh AdBlue fluid until it reaches the full mark.
• Replace the cap securely.

3. Reset the AdBlue Warning Light

• Tools Required: OBD-II scanner.
• Connect the OBD-II scanner to the vehicle's diagnostic port.
• Access the AdBlue system menu and select "Clear Fault Codes".
• Confirm the action and disconnect the scanner.

4. Inspect Components

• Tools Required: Socket set, screwdriver set.
• Remove any undercarriage covers if necessary to access the AdBlue pump and injector.
• Inspect the AdBlue pump for any signs of damage or wear; replace if needed.
• Clean the AdBlue injector using a soft cloth; replace if it's clogged or damaged.

5. Check Wiring and Connections

• Visually inspect all wiring and connectors related to the AdBlue system for corrosion or damage.
• Repair any damaged wires and ensure all connections are secure.