what does the B10 error code mean for my Volkswagen Golf Eighth Generation (2020-present)?

Solution

1. Preparation

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

2. Inspect and Clean Battery Connections

• Remove the positive terminal followed by the negative terminal.
• Clean the battery terminals and cable connectors using a wire brush and a mixture of baking soda and water to neutralize corrosion.
• Dry thoroughly and reconnect terminals, attaching the positive terminal first.

3. Test and Replace Battery

• If the battery voltage is low or the load test fails:
  • Remove the battery from the vehicle (unbolt and lift out carefully).
  • Replace with a new battery that meets manufacturer specifications (check for correct CCA rating).
  • Reinstall the new battery, ensuring secure connections.

4. Check BMS Software

• Using a compatible VAG COM scanner, check for any software updates or reprogramming needed for the battery management system.
• Follow manufacturer instructions to update or reset the BMS if applicable.

5. Final Assembly

• Reconnect the battery terminals (negative first, then positive).
• Ensure all connections are tight and secure.
• Reconnect any components that were disconnected during the process.