Tools and Materials You'll Need:
* Drain pan: Large enough to hold several gallons of coolant.
* Wrench: Appropriate size for the drain plug (likely 8mm or 10mm – check your owner's manual).
* New coolant: Use the correct type and amount specified in your owner's manual (usually a 50/50 mix of antifreeze and distilled water).
* Funnel: To make refilling easier.
* Gloves: To protect your hands.
* Safety glasses: To protect your eyes.
* Hose (optional): A length of hose can make draining easier by extending the reach of the drain plug.
Procedure:
1. Locate the drain plug: This is usually located at the bottom of the radiator. Your owner's manual will show you exactly where it is. It might be a bolt or a plastic petcock.
2. Position the drain pan: Place the drain pan under the radiator drain plug.
3. Open the drain plug: Carefully loosen and remove the drain plug, allowing the coolant to drain into the pan. Be prepared for it to be hot if the engine was recently running, even if it's cooled down considerably. A hose attached to the drain valve can help direct the flow into the pan.
4. Open the radiator cap: Once most of the coolant has drained from the radiator, carefully open the radiator cap. There might still be some coolant inside. (Again, ensure the engine is completely cool!)
5. Locate the coolant reservoir: This is a separate tank usually near the radiator. The cap should be easily identifiable.
6. Open the coolant reservoir: Open the cap on the coolant reservoir. This allows air to escape as the coolant is drained from other parts of the system.
7. Wait for complete draining: Allow ample time for all the coolant to drain. This might take 20-30 minutes depending on the size of the system and the temperature.
8. Replace the drain plug: Once the draining is complete, securely tighten the radiator drain plug.
9. Refill the coolant system: Using a funnel, carefully add the recommended type and amount of coolant (refer to your owner's manual).
10. Start the engine: Start the engine and let it run for a few minutes to allow the coolant to circulate. Check the coolant level in the reservoir and add more coolant if needed. Let the engine run until the thermostat opens (the upper radiator hose will get hot).
11. Top up and check for leaks: Turn the engine off and allow it to cool. Top up the coolant reservoir to the "full" mark. Check for any leaks around the drain plug and hoses.
12. Dispose of old coolant properly: Antifreeze is toxic, so dispose of the used coolant responsibly. Many auto parts stores and recycling centers accept used motor oil and antifreeze.
Important Considerations:
* Consult your owner's manual: This is the most crucial step. The specific location of the drain plug and the type of coolant your Aveo requires will be detailed in your owner's manual.
* Safety first: Always prioritize safety by wearing gloves and safety glasses. Work in a well-ventilated area.
* Coolant type: Use the correct type of coolant. Using the wrong type can damage your engine.
This is a general guide. If you're not comfortable performing this task yourself, take your Aveo to a qualified mechanic. Improperly flushing the coolant system can lead to serious engine damage.
