my Volkswagen Golf MK6 (2009-2014) won’t start and just clicks, what could be wrong?

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is in park (automatic) or neutral (manual) with the parking brake engaged.
• Disconnect the negative battery terminal to ensure safety.

2. Battery Inspection and Replacement

• Sub-steps:
  • Remove the battery cover if applicable.
  • Disconnect the positive (+) terminal first, followed by the negative (-) terminal.
  • Clean any corrosion from the terminals and cable ends using a wire brush.
  • Test the battery voltage again; if below 12.4 volts, replace the battery.
  • Install the new battery by connecting the positive terminal first, then the negative terminal.

3. Starter Motor Inspection

• Sub-steps:
  • Locate the starter motor, usually found on the transmission side.
  • Disconnect the electrical connector and the power supply cable from the starter.
  • Use a multimeter to test the starter motor for continuity.
  • If faulty, remove the starter motor by unbolting it and replace it with a new unit.

4. Checking and Replacing Fuses

• Sub-steps:
  • Locate the fuse box; refer to the owner's manual for the exact location.
  • Identify the fuses related to the starting system (often labeled as "starter" or "ignition").
  • Remove the fuses and check for continuity; replace any blown fuses with the same amperage rating.