my Skoda Octavia NFL (2020-Present) headlights keep flickering, what should I check?

Solution

1. Preparation

• Tools Required: OBD-II scanner, multimeter, screwdriver set, flashlight.
• Safety Warnings: Disconnect the battery before working on electrical systems.

2. Replace Faulty Headlight Bulbs

• Sub-steps:
  1. Open the hood and locate the headlight assembly.
  2. Remove the headlight bulb cover by turning it counterclockwise.
  3. Carefully pull out the old bulb, avoiding contact with the glass.
  4. Insert the new bulb into the socket, ensuring it is securely seated.
  5. Replace the bulb cover and close the hood.

3. Repair or Replace Wiring Harness

• Sub-steps:
  1. Inspect the wiring harness leading to the headlights for any visible damage.
  2. If damaged, disconnect the harness and cut away the affected section.
  3. Strip the wires and use butt connectors to splice in new wiring.
  4. Reconnect the harness and secure it with zip ties to prevent movement.

4. Test and Replace Relay (if necessary)

• Sub-steps:
  1. Locate the headlight relay in the fuse box (refer to the owner’s manual for location).
  2. Remove the relay and test it using a multimeter for continuity.
  3. If faulty, replace the relay with a new one of the same specifications.

5. Verify Alternator and Battery Function

• Sub-steps:
  1. Start the engine and use the multimeter to check battery voltage.
  2. If voltage is below the specified range, inspect the alternator connections and ground.
  3. If needed, replace the alternator with a new unit following manufacturer specifications.