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

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Tools required: Multimeter, OBD-II scanner, basic socket set, and screwdriver set.
• Ensure the vehicle is parked on a level surface and the engine is off.

2. Battery Inspection

• Sub-step 1: Open the hood and locate the battery.
• Sub-step 2: Use a multimeter to check the battery voltage; it should read around 12.6 volts when the engine is off.
• Sub-step 3: If the voltage is low, charge or replace the battery as needed.
• Sub-step 4: Check battery terminals; clean any corrosion with a wire brush and reconnect securely.

3. Alternator Check

• Sub-step 1: Start the engine and use the multimeter to measure the voltage at the battery terminals; it should read between 13.7 to 14.7 volts with the engine running.
• Sub-step 2: If the voltage is lower than this range, the alternator may be faulty; consider replacement.

4. Fuse Inspection

• Sub-step 1: Locate the fuse box, usually under the dashboard or in the engine bay.
• Sub-step 2: Check the fuses related to the dashboard lights and replace any that are blown.
• Sub-step 3: Use the vehicle’s manual to confirm the correct fuse ratings.

5. Wiring Inspection

• Sub-step 1: Inspect all visible wiring for the dashboard lights for signs of fraying, wear, or loose connections.
• Sub-step 2: Repair or replace any damaged wiring as necessary.
• Sub-step 3: Ensure all connectors are securely fastened.