my Volkswagen Golf MK7.5 (2020-Present) won't start just clicks what should I check

Solution

1. Preparation

• Tools Required: OBD-II scanner, multimeter, socket set, wrench set, battery terminal cleaner, safety goggles, gloves.
• Disconnect the negative battery terminal to ensure safety during the repair.

2. Battery Inspection and Replacement

• Sub-steps:
  1. Remove the battery cover if equipped.
  2. Clean the battery terminals using a battery terminal cleaner or a wire brush.
  3. Tighten any loose connections on the positive and negative terminals.
  4. If the battery voltage is below 12.4 volts, jump-start the vehicle or replace the battery with a new one.
  5. Reconnect the battery terminals, ensuring a snug fit.

3. Starter Relay and Fuse Check

• Sub-steps:
  1. Locate the fuse box and identify the starter relay.
  2. Swap the starter relay with another relay of the same type (e.g., horn relay).
  3. Inspect the fuses associated with the starting system and replace any blown fuses.

4. Starter Motor Inspection

• Sub-steps:
  1. Locate the starter motor underneath the vehicle.
  2. Check for loose connections on the starter motor and tighten if necessary.
  3. Perform a bench test on the starter if accessible, or check for voltage at the starter terminal when the ignition is engaged.
  4. If the starter does not engage, replace the starter motor.