How to Clean Battery Corrosion: 2009 Ford Focus SE 2.0L 4 Cyl. Sedan (4 Door)

Ford Focus Model Years - 2008, 2009, 2010, 2011

1. Getting Started - Prepare for the repair

2. Open the Hood - How to pop the hood and prop it open

3. Access Battery - Learn where the battery is located

4. Remove Cables - How to disconnect the cables the right way

5. Clean Cables - Clean with baking soda, water and a wire brush

6. Connect Cables - Re-connect the cables in the right order

7. Replace Cover - Ensure the cover is put back properly

8. More Info. - Additional thoughts on corrosion prevention

Author

Hans Angermeier is an ASE certified Maintenance and Light Repair Technician and has produced over 100,000 videos showing drivers how to fix things on their cars. He has broad expertise on basic repair procedures covering the majority of cars on the road. Over the past 10 years, Hans has been focused on building CarCareKiosk, which is visited by millions of drivers each month.

Share on   Share on Twitter   Share on Facebook
Parts & Tools
We may earn a commission from qualifying purchases as an Amazon Associate
Video Description

If the battery in your 2009 Ford Focus has crusty white or green build-up and corrosion on the clamps, posts or terminals, you can improve the performance and lifespan of your battery significantly by cleaning it. Your battery is depleted when it is used to start the car, but then recharged when you drive your Focus, the corrosion limits the ability for your Focus to recharge the battery when driving. The video above will show you the correct order to safely remove the battery clamps in your Focus and what to use to clean your battery terminals and clamps. We will also show you a tip for preventing this buildup in the future so the battery in your Focus will be optimally charged whenever you drive it!

Car batteries contain dangerous and flammable fluids. Always use safety glasses and gloves whenever working with the battery. Check out our parts page for great deals and coupons on safety glasses, gloves and battery terminal brushes for your Focus!

  • Advance Auto coupon for
    20% off entire order: KIOSK20
2008 Ford Focus SE 2.0L 4 Cyl. Coupe (2 Door) Air Filter (Engine) Replace

Replacing a dirty air filter can improve gas mileage by up to 4%. Isn't efficiency great?

2009 Ford Focus SE 2.0L 4 Cyl. Sedan (4 Door) Coolant (Antifreeze) Fix Leaks

Leaking coolant is usually a sign that your water pump needs to be replaced. This video shows you how to quickly plug it

2009 Ford Focus SE 2.0L 4 Cyl. Sedan (4 Door) Power Steering Fluid Fix Leaks

If your car is leaking a small amount of power steering fluid - see this video on how to fix the leak

2008 Ford Focus SE 2.0L 4 Cyl. Coupe (2 Door) Air Filter (Engine) Check

Learn where your air filter is located and how to determine if it needs to be changed.