how to fix the oil consumption problem in my Volkswagen Golf MK7 (2015-2019)?

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Park the vehicle on a flat surface and set the parking brake.
• Disconnect the negative battery terminal to avoid electrical issues during repairs.

2. Replace PCV Valve

• Tools Required: Socket set, pliers, gasket scraper, torque wrench.
• Steps:
  1. Locate the PCV valve, usually found on the valve cover or near the intake manifold.
  2. Disconnect any electrical connectors or hoses attached to the PCV valve.
  3. Remove the PCV valve by twisting or pulling it out, depending on its design.
  4. Clean the mounting surface to ensure a proper seal for the new valve.
  5. Install the new PCV valve by pushing it into place, ensuring it is secure.
  6. Reconnect any hoses or electrical connectors and secure them properly.

3. Replace Valve Cover Gasket

• Tools Required: Socket set, torque wrench, gasket scraper, engine oil.
• Steps:
  1. Remove any components obstructing access to the valve cover (intake manifold or engine cover).
  2. Unbolt the valve cover using the socket set, taking care to note the bolt sequence.
  3. Carefully lift the valve cover off, avoiding damage to surrounding components.
  4. Remove the old gasket and clean the mating surfaces thoroughly with a gasket scraper.
  5. Apply a light coat of engine oil to the new gasket to aid in sealing.
  6. Position the new gasket on the valve cover and reattach it to the engine.
  7. Torque the valve cover bolts in a crisscross pattern to the manufacturer's specifications.

4. Inspect and Replace Piston Rings (if necessary)

• Tools Required: Engine hoist, socket set, torque wrench, ring compressor.
• Steps:
  1. If previous steps did not resolve the issue, remove the engine from the vehicle.
  2. Remove the cylinder head and inspect the piston rings for wear or damage.
  3. Replace the piston rings if they show signs of excessive wear.
  4. Reassemble the engine using a ring compressor to ensure proper fit.
  5. Reinstall the engine into the vehicle and reconnect all components.