my Skoda Octavia's battery light is on what does this mean

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a flat surface and the engine is off.
• Disconnect the negative terminal of the battery to prevent any electrical shock.

2. Battery Terminal Inspection

• Remove the positive and negative battery terminals using a socket wrench.
• Clean any corrosion from the terminals and battery posts using a wire brush.
• Reattach the battery terminals securely.

3. Alternator Belt Inspection

• Locate the alternator belt and check for signs of wear or cracking.
• If the belt is loose, adjust tension according to the manufacturer's specifications.
• If damaged, replace the belt with a new one.

4. Alternator Testing

• Reconnect the negative battery terminal.
• Start the engine and use a multimeter to measure the voltage at the battery terminals.
• If the voltage is below 13.7 volts, the alternator may need replacement.

5. Replace the Alternator (if necessary)

• Disconnect the battery terminals again.
• Remove any components obstructing access to the alternator (e.g., air intake duct).
• Unscrew the alternator mounting bolts and disconnect the wiring harness.
• Install the new alternator, reconnect the wiring, and secure with mounting bolts to the specified torque.
• Reinstall any components removed for access.