why does my BMW 5 Series F10/F11 (2010-2017) dashboard lights keep flickering

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative terminal of the battery to prevent electrical shock.

2. Battery Inspection

• Tools Required: Multimeter, wire brush, wrench set.
• Clean battery terminals using a wire brush to remove corrosion.
• Use a multimeter to check the battery voltage. If it's below 12.4 volts, consider replacing the battery.

3. Alternator Testing

• Tools Required: Multimeter.
• Reconnect the battery and start the engine.
• Measure the voltage at the battery terminals with the engine running. If the voltage is below 13.5 volts, test the alternator for proper operation, which may include checking the alternator belt for wear.

4. Fuse and Wiring Inspection

• Tools Required: Fuse puller, multimeter.
• Locate the fuse box and check for any blown fuses related to the dashboard lighting and electrical system.
• If fuses are intact, visually inspect the wiring harness and connectors for any fraying, corrosion, or loose connections. Repair or replace as necessary.

5. Ground Connection Check

• Tools Required: Socket set, multimeter.
• Locate the ground connections in the vehicle, typically found near the battery and under the dashboard.
• Ensure all ground connections are tight and free of rust or corrosion. Clean and re-secure as necessary.