my Skoda Octavia NFL (2020-Present) has a hard time starting in cold weather

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the ignition is off.
• Disconnect the battery negative terminal to ensure safety.

2. Battery Inspection and Replacement

• Tools Required: Wrench set, multimeter
• Inspect battery terminals for corrosion; clean if necessary.
• If battery voltage is below 12.4 volts, replace the battery:
  1. Remove the battery hold-down bracket and disconnect the positive terminal.
  2. Disconnect the negative terminal and remove the battery from the vehicle.
  3. Install the new battery and connect the terminals (negative first, then positive).
  4. Secure the battery with the hold-down bracket.

3. Starter Motor Testing

• Tools Required: Multimeter, jumper cables
• If the battery is functioning, test the starter motor:
  1. Locate the starter motor and ensure it is securely mounted.
  2. Use jumper cables to apply direct power to the starter motor while the ignition is in the "on" position.
  3. If the starter motor does not engage, it may need to be replaced.

4. Fuel System Inspection

• Tools Required: Fuel pressure gauge, socket set
• Check the fuel pump operation:
  1. Relieve fuel system pressure by removing the fuel pump fuse and starting the engine until it stalls.
  2. Reinstall the fuse, then connect the fuel pressure gauge to the fuel rail.
  3. Turn the ignition to the "on" position (do not start) and check fuel pressure; it should be within manufacturer specifications.
  4. If pressure is low, inspect or replace the fuel pump and filter as necessary.

5. Engine Oil Check

• Tools Required: Oil dipstick
• Check engine oil viscosity:
  1. Remove the dipstick and inspect oil color and thickness.
  2. If the oil is too thick for cold weather, consider changing to a lower viscosity oil per manufacturer specifications.