why does my BMW 3 Series G20/G21 (2019-2024) keep blowing fuses

Solution

1. Preparation

• Gather necessary tools and safety gear.
• Disconnect the vehicle's battery to prevent electrical shock or further damage.

2. Inspect and Identify

• Sub-steps:
  1. Remove the fuse box cover to access the fuses.
  2. Identify the blown fuses and document which circuits they belong to.
  3. Check for any visible damage to the fuse box itself.
• Tools Required: Flathead screwdriver, flashlight.

3. Repair Wiring and Components

• Sub-steps:
  1. Repair or replace any damaged wiring found during inspection.
  2. Replace any faulty electrical components that are drawing excessive current.
  3. Ensure all connections are tight and free from corrosion.
• Tools Required: Wire cutters/strippers, soldering iron or crimp connectors, electrical tape.

4. Replace Fuses

• Sub-steps:
  1. Replace blown fuses with the correct amperage rating.
  2. Ensure that the fuses are seated properly in their slots.
• Tools Required: Fuse puller or needle-nose pliers.

5. Final Checks

• Sub-steps:
  1. Reconnect the battery and turn on the vehicle.
  2. Monitor the affected circuits to ensure they are functioning correctly.
• Safety Warnings: Double-check connections; ensure no tools are left in the engine bay before starting.