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

Solution

1. Preparation

• Gather tools: OBD-II scanner, multimeter, socket set, jumper cables, and a torque wrench.
• Ensure the vehicle is in a safe location with the engine off.
• Disconnect the negative terminal of the battery to prevent any electrical shorts.

2. Battery Inspection

• Remove the battery terminals using a socket set.
• Clean any corrosion from the terminals and battery posts using a wire brush.
• Tighten the terminals securely and reconnect the negative terminal.

3. Starter Motor Testing

• Locate the starter motor, typically found near the engine block.
• Disconnect the electrical connector from the starter motor.
• Use jumper cables to connect the positive terminal of the battery to the starter motor terminal directly.
• If the starter motor engages and turns over, it may need replacement.

4. Relay and Fuse Check

• Locate the fuse box and identify the starter relay and relevant fuses.
• Remove the starter relay and visually inspect for damage.
• Replace any blown fuses with the same amperage rating.

5. Ground Connection Assessment

• Inspect the ground cable connected to the engine block and chassis.
• Ensure all ground connections are clean, tight, and free of rust or corrosion.
• If necessary, clean and retighten ground connections.