why is my Volkswagen Golf Eighth Generation (2020-present) overheating after short drives

Solution

1. Preparation

• Tools Required: OBD-II scanner, multimeter, socket set, coolant catch pan, safety goggles, gloves.
• Safety Warnings: Allow the engine to cool completely before working on the cooling system to avoid burns.

2. Replace Thermostat

1. Remove Engine Cover: Use a socket set to unbolt and remove the engine cover to access the thermostat.
2. Drain Coolant: Place a coolant catch pan under the vehicle and drain the coolant from the radiator using the drain valve.
3. Remove Thermostat Housing: Unscrew the bolts securing the thermostat housing and carefully detach it.
4. Replace Thermostat: Remove the old thermostat and install the new one, ensuring proper orientation.
5. Reassemble: Reattach the thermostat housing and tighten bolts to manufacturer specifications (typically around 10-15 Nm).
6. Refill Coolant: Refill the coolant reservoir with the appropriate type and mixture of coolant for the vehicle (check owner's manual for specifications).

3. Inspect and Replace Cooling Fans (if necessary)

1. Disconnect Battery: Disconnect the negative terminal of the battery to ensure safety while working on electrical components.
2. Remove Fan Assembly: Unscrew and carefully detach the cooling fan assembly from the radiator.
3. Test Fan Operation: Connect the fan directly to a power source to check if it operates. If it doesn't, replace the fan.
4. Install New Fan: Position and secure the new cooling fan assembly back into place.
5. Reconnect Battery: Reconnect the negative terminal of the battery.