my Skoda Octavia won't start and just clicks what could be wrong

Solution

1. Preparation

• Ensure the vehicle is in park (automatic) or neutral (manual).
• Disconnect the negative battery terminal to prevent electrical shock.
• Gather tools: multimeter, socket set, wrench set, and OBD-II scanner.

2. Battery Inspection and Replacement

• Check Battery Voltage:
  • Connect the multimeter to the battery terminals.
  • If voltage is below 12.4 volts, charge or replace the battery.
• Clean Battery Terminals:
  • Use a wire brush to clean corrosion from battery terminals.
  • Reconnect terminals securely.

3. Starter Relay Testing

• Locate Starter Relay:
  • Find the relay in the fuse box (refer to the owner's manual).
• Swap Relays:
  • Remove the starter relay and replace it with a similar relay.
  • Attempt to start the vehicle.

4. Starter Motor Inspection

• Locate Starter Motor:
  • Typically found near the engine block, towards the transmission.
• Inspect Connections:
  • Ensure all connections are tight and free from corrosion.
• Test Starter Motor:
  • If accessible, apply direct voltage to the starter motor. If it does not engage, the starter may need replacement.