- New thermostat
- Replacement coolant (G12 or equivalent)
- 5mm Hex key
- 10mm socket wrench
- Coolant filling jug
- Funnel
- Bucket
Instructions:
1. Vehicle preparation
- Park the car on a level surface and apply the parking brake.
- Allow the engine to cool down if it has been running.
2. Drain coolant
- Start by depressurizing the cooling system. Remove the radiator cap using a 5mm Hex key.
- Locate the coolant drain cock or plug at the bottom of the radiator.
- Place the bucket under the drain cock and open it. Allow the coolant to drain completely into the bucket.
- Close the drain cock/plug once the coolant has drained.
3. Remove the thermostat housing
- The thermostat housing is located under the coolant inlet tube.
- Remove the two bolts holding the thermostat housing in place using a 10mm socket wrench.
- Gently pry the thermostat housing off. Be careful not to spill the remaining coolant.
4. Remove the old thermostat
- Remove the old thermostat from the housing. It may be stuck in place, so use a gentle prying motion to remove it.
5. Install new thermostat
- Inspect the new thermostat to make sure it fits properly in the housing.
- Install the new thermostat in the housing, ensuring it fits securely in place.
6. Reinstall thermostat housing
- Reinstall the thermostat housing back into its original position.
- Tighten the bolts securely.
7. Refill coolant
- Remove the coolant reservoir cap.
- Fill the coolant reservoir and fill jug with the replacement coolant until it reaches the "FULL" mark or as recommended by your vehicle manual.
- Squeeze radiator hoses to help release air pockets while adding coolant.
- Once coolant is filled to the correct level, replace the caps on coolant reservoir and radiator.
8. Start the engine & bleed the coolant system
- Start the engine and allow it to run for a few minutes. This will help to circulate the coolant through the system and remove any remaining air pockets.
- Check for leaks and correct any if found.
9. Recheck coolant levels
- Once the engine has cooled down, recheck the coolant level in the reservoir and ensure that it is still within specified limits.
Tips:
- Make sure to purchase the correct thermostat for your vehicle.
- If you are uncomfortable performing this task, consider having a qualified mechanic do it for you.
- Always dispose of old coolant properly. It may be toxic and harmful to the environment if not disposed of correctly.
