why does my Skoda Octavia NFL (2020-Present) battery die overnight when parked

Solution

1. Preparation

• Gather tools: multimeter, OBD-II scanner, wrenches, and safety gloves.
• Ensure the vehicle is parked in a safe area with the engine off and keys removed.

2. Replace Battery (if necessary)

• Remove Old Battery:

  1. Disconnect the negative terminal first followed by the positive terminal.
  2. Remove any retaining brackets or covers securing the battery.
  3. Carefully lift the old battery from the compartment.

• Install New Battery:

  1. Place the new battery in the compartment.
  2. Reconnect the positive terminal first, followed by the negative terminal.
  3. Secure any retaining brackets or covers.

3. Address Parasitic Draw (if applicable)

• Identify Source:

  1. With the multimeter still connected, pull one fuse at a time until the current draw drops to an acceptable level.
  2. Once the offending circuit is identified, inspect components connected to that circuit (e.g., trunk light, alarm system).

• Repair or Replace Faulty Components:

  1. Replace any malfunctioning components or wiring associated with the identified circuit.
  2. Reassemble any covers or panels removed during inspection.