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Ford Fusion coolant loss and engine overheating

Years affected, the mileage it usually shows up at, and what fixes it

1,364owner complaints
2016worst model year
92,000typical mileage
37reports of a crash or fire
2017 Ford Fusion in Ingot Silver, front right, 02-14-2026

About this problem

Coolant intrusion means engine coolant is leaking inside the engine, usually into the cylinders, rather than dripping outside. On some engines the cylinder head and block design lets coolant seep past the head gasket area. The signs are a coolant level that keeps dropping with no visible leak, white exhaust smoke, misfires and overheating. Caught late, it can ruin the engine.

Across all owner complaints filed about the Ford Fusion since 2012, 1,364 (12.1%) describe coolant loss and engine overheating, the second most reported problem we track on the Fusion. The reports cluster on the 2016, 2017 and 2018 model years, and the 2016 drew the most, with 306. It tends to show up at higher mileage: half of the owners who gave a mileage were between 72,000 and 120,000 miles. 37 reports describe a crash or fire linked to it. 4 recalls are related to it, and recall repairs are free at any dealer.

What owners report

Owners of 2015 to 2019 Fusions with the 1.5- and 2.0-liter EcoBoost engines report coolant disappearing, overheating, misfires and white exhaust smoke. In many cases the coolant is leaking inside the engine into the cylinders, which ruins the engine. The 2016 to 2018 cars drew the most reports.

How it gets fixed

Most cases end with a replacement engine or short block with an updated design. Some cars got extended warranty coverage.

Typical cost: A replacement engine costs about $6,000 to $12,000 out of warranty.

Complaints by model year

812
19013
9614
13815
30616
30317
19418
111191820
21
22
23
24

Complaints about this problem filed with the federal safety agency, by model year. Red bars are the worst years.

Mileage when it happened

under 25k2%
25k to 50k5%
50k to 100k48%
over 100k45%

Half of the 731 owners who gave a mileage reported it between 72,000 and 120,000 miles.

In owners' words

"On february 11th 2020, I purchased a 2016 Ford Fusion with 73,000 miles from american car center in west columbia, s c. On february 23rd I was riding on i26 and my car started overheating. I pulled into a parking lot."

2016 Ford Fusion, 73,000 miles

"I / the owner of my 2017 Ford Fusion se 1.5l had a seized engine occur on my commute home from work. White smoke billowed and brewed out my exhaust as I was in the right lane."

2017 Ford Fusion, 76,000 miles

"Overheating message displaying. For safety the car has a low power mode and it activates. Let’s vehicle sit for 20 mins. Adding coolant lifted the hood container appeared to be empty. Purchasing the ORANGE! coolant auto zone suggested."

2018 Ford Fusion, 114,817 miles

Excerpts from public owner complaints filed with the National Highway Traffic Safety Administration, lightly trimmed.

Related recalls

Recall repairs are free at any dealer. Check a specific car by VIN at nhtsa.gov/recalls.

Service bulletins

Ford has sent dealers 25 bulletins that mention this problem on the Fusion. A bulletin tells technicians how to fix a known fault. It is not a recall, so the repair is usually free only while the car is under warranty or covered by an extension.

Before you buy a Fusion

  • Check the coolant level when the engine is cold, and look for a low or empty reservoir.
  • Watch for white smoke at start-up and ask about misfires.
  • Ask whether the engine has been replaced and with which part.

Questions

Which Ford Fusion years have coolant loss and engine overheating?

Complaints are highest for the 2016, 2017, 2018 model years. The 2016 drew the most, with 306 reports.

At what mileage does it usually start?

Among owners who gave a mileage, the middle figure was about 92,000 miles, and half reported it between 72,000 and 120,000 miles.

How much does it cost to fix?

A replacement engine costs about $6,000 to $12,000 out of warranty.

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