A Step-by-Step Guide on How to Reset the Coolant Change Required Message in Your F250

By Nick Marchenko, PhD

Warning and Safety Precautions

• Never open the coolant reservoir cap when the engine is hot. Always wait at least 10 minutes for the engine to cool down. Use a thick cloth to cover the cap to prevent scalding.
• Coolant is not for the windshield washer reservoir. Mistakenly adding it there could impair visibility through the windshield.
• Be cautious of the pressurized cooling system. Before opening the coolant pressure relief cap, ensure the engine is cool to avoid hot steam or liquid ejections.
• Avoid overfilling the coolant. Do not add coolant beyond the MAX mark.

Coolant Checks and Maintenance

• Regularly check the coolant concentration and level when the engine is cold, following the intervals in the maintenance schedule.
• The coolant level should always be between the MIN and MAX marks.
• Remember, coolant expands when hot, so it might go beyond the MAX mark.

Step-by-Step Guide to Resetting the Coolant Message

Checking and Adding Coolant:

- Add Coolant Safely: Make sure the engine is off and cool. Slowly unscrew the cap to release any pressure.

- Correct Coolant Type: Use only prediluted coolant approved to the correct specification. Do not mix different types of coolant.

- Filling the Coolant: Add the coolant slowly to the reservoir, keeping the level between the MIN and MAX marks.

- After Filling: Replace the cap securely and check the coolant level after a few drives.

Managing Coolant Levels and Concentration:

- Coolant Concentration: Maintain a coolant concentration within 48% to 50% for optimal freezing point.

- Adding in Case of Low Levels: If the coolant is below the minimum mark, add prediluted coolant immediately.

- Regular Checks: If you find yourself adding more than 1 L of coolant per month, have your vehicle checked.

In Case of Emergency:

- If necessary, you can temporarily add water to reach a service location. However, upon arrival:

- Drain the cooling system.

- Clean it chemically.

- Refill with the appropriate coolant.

Coolant Change Procedure:

- Follow the specific intervals in your maintenance schedule for changing the coolant.

- When the information display shows a message to change coolant, use prediluted coolant approved to the correct specification.

Conclusion

Proper maintenance of the cooling system in your Ford F250 is crucial for the longevity and performance of your vehicle. Always adhere to the safety warnings and use the correct type of coolant. Regular checks and maintenance can prevent major issues and ensure your truck runs smoothly.

Nick Marchenko, PhD

Industrial Engineer & Automotive Content Specialist

Nick writes in-depth guides on car clubs, engine specs, vehicle ownership, and modifications, combining engineering knowledge with automotive passion.

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