what to do if my Volkswagen Golf MK7 (2015-2019) overheats while driving?

Solution

1. Preparation

• Gather all necessary tools and parts.
• Allow the engine to cool completely to avoid burns from hot components.
• Disconnect the battery before starting work on the vehicle.

2. Check and Refill Coolant

• Tools Required: Coolant, funnel
• Locate the coolant reservoir and remove the cap.
• If low, use a funnel to refill the reservoir with the appropriate coolant type (G12 or G13 for VW).
• Replace the cap securely.

3. Inspect and Replace Thermostat (if necessary)

• Tools Required: Socket set, torque wrench, gasket scraper, new thermostat and gasket
• Remove the engine cover (if applicable) to access the thermostat housing.
• Disconnect the hoses connected to the thermostat housing.
• Remove the bolts securing the thermostat housing and carefully lift it off.
• Remove the old thermostat and clean the mating surface.
• Install the new thermostat with a new gasket, ensuring proper orientation.
• Reattach the thermostat housing and torque bolts to the manufacturer’s specification.

4. Check and Replace Water Pump (if necessary)

• Tools Required: Socket set, torque wrench, replacement water pump, gasket, coolant
• Drain the coolant from the system.
• Remove any components obstructing access to the water pump (e.g., belts, timing cover).
• Disconnect hoses attached to the water pump and remove the mounting bolts.
• Take out the old water pump and clean the mounting surface.
• Install the new water pump, ensuring proper gasket placement, and torque the bolts according to specifications.
• Reassemble any removed components and refill the coolant system.

5. Test the Cooling System

• Start the engine and monitor the temperature gauge.
• Observe for any leaks around the thermostat and water pump.
• Allow the engine to reach operating temperature and ensure the radiator fan engages.