my Skoda Octavia won't start and just clicks, what should I check?

Solution

1. Preparation

• Gather tools: multimeter, socket set, jumper wire, and cleaning brush.
• Ensure the vehicle is in park or neutral with the parking brake engaged.
• Disconnect the battery to prevent accidental electrical shorts.

2. Battery Inspection

• Sub-step 1: Visually inspect battery terminals for corrosion. Clean with a wire brush if necessary.
• Sub-step 2: Tighten the battery terminals to ensure a secure connection.
• Sub-step 3: Test the battery voltage again; if below 12.4 volts, proceed to jump-start or replace the battery.

3. Starter Motor Check

• Sub-step 1: Locate the starter motor and ensure it is securely mounted.
• Sub-step 2: Disconnect the wiring harness from the starter motor.
• Sub-step 3: Use a jumper wire to connect the positive terminal of the battery directly to the starter motor terminal. If the motor engages, it may need replacement.

4. Fuse and Relay Inspection

• Sub-step 1: Locate the fuse box and remove the cover.
• Sub-step 2: Identify and check the fuses related to the starting system; replace any blown fuses.
• Sub-step 3: Test the starter relay by swapping it with a similar relay to see if the issue resolves.

5. Wiring Harness Inspection

• Sub-step 1: Follow the wiring from the battery to the starter and inspect for frays or breaks.
• Sub-step 2: Repair or replace any damaged wiring as necessary.