coolant reservoir ford focus

Ford Focus Coolant Reservoir Replacement

Is there a leak from your Ford Focus coolant reservoir? Learn how to fix the problem by replacing the coolant reservoir of your Ford Focus.


  • Coolant leak from the overflow reservoir

What you will need

  • Ford Focus Overflow Reservoir
  • Flathead screwdriver
  • Container to collect coolant
  • Channel Lock Pliers
  • 50/50 engine coolant – 1 Gal


  1. Allow the engine to cool down.
  2. Drain the engine coolant until the overflow tank is empty.Drain engine coolant, replace ford focus overflow cooalnt antifreeze tankThe drain plug is on the right lower corner of the radiator (driver side).drain plug ford focus If your coolant reservoir is empty already, skip this step.
  3. Use channel lock pliers to disconnect the hose that connects to the bottom of the overflow reservoir.overfllow coollant hose
  4. Disconnect the return line at the top of the reservoir. You will need to press the clips and pull the line away. Use a flathead screwdriver to release the reservoir from the metal brackets. Lift up the reservoir and remove it.

Install the new reservoir in reverse order.

  • Reconnect both hoses.
  • Snap the new reservoir in its place.
  • Add 50/50 engine coolant,
  • Reinstall the cap.

It is recommended to replace the coolant reservoir cap at the same time you replace the coolant tank.  That’s it. Replacing the coolant overflow (expansion tank) on Ford Focus is very simple and takes about 30 minutes.

We hope you find the Ford Focus Coolant Reservoir Replacement guide helpful. Check these troubleshooting and repair guides for more help on your Ford Focus.


  • Rushit Hila • ASE Certified

    Rushit Hila, an ASE-certified engineer (G1 Automotive Maintenance and Repair), brings over two decades of hands-on experience in the automotive world to his writing. With a strong educational background, including a Master of Science in Engineering and a Bachelor of Science in Engineering, he has honed his skills and expertise through years of practical work. As a respected authority in the field, Mr. Hila is dedicated to offering insightful and valuable content that resonates with both vehicle owners and mechanics.

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