my Volkswagen Golf MK7 (2015-2019) dashboard lights are flickering, what should I do

Solution

1. Preparation

• Gather tools and parts.
• Disconnect the negative battery terminal to ensure safety while working on electrical components.

2. Battery Inspection

• Tools Required: Multimeter, wire brush, terminal cleaner.
• Inspect the battery terminals for corrosion:
  1. Use a wire brush to clean corroded terminals.
  2. Reconnect the terminals securely.
• Test the battery with the multimeter:
  1. Connect the multimeter leads to the battery terminals.
  2. If the voltage is low, replace the battery.

3. Alternator Testing

• Tools Required: Multimeter.
• Start the engine and measure the alternator output:
  1. Connect the multimeter leads to the battery terminals while the engine is running.
  2. If the output is below the specified range, consider replacing the alternator.

4. Wiring and Fuse Check

• Tools Required: Fuse puller, multimeter.
• Inspect the wiring harness:
  1. Look for frayed wires or loose connections, especially near the dashboard area.
  2. Repair or replace any damaged wiring.
• Check fuses related to the dashboard:
  1. Remove each fuse and inspect for continuity using a multimeter.
  2. Replace any blown fuses with the correct amperage.