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2018 Ford Flex problems: engine and transmission complaints and recalls

NO ELEVATED SIGNAL
6%
4 of 67 relevant owner complaints are about the engine, transmission or fuel system

No elevated drivetrain complaint concentration in the available NHTSA records for the 2018 Ford Flex. Engine, transmission and fuel system account for 6% of relevant complaints.

Better than 99% of the 1,790 model years we track (2010–2023).

NHTSA data checked October 3, 2026

The VIN is on the listing, the driver’s door jamb, and the bottom of the windshield on the driver’s side.

Does the 2018 Ford Flex have engine or transmission problems?

Not as a pattern, going by owner complaints. 4 of 67 relevant complaints filed with NHTSA about the 2018 Ford Flex concern the engine, transmission or fuel system (6%). For comparison, the 2017 scores 8% and the 2019 scores 4%. This describes the model year, not any one car: a well-maintained or already-repaired example can be fine, and a clean model year can still have a bad car in it.

Drivetrain complaints
4
engine, transmission, fuel
Total complaints
67
this model year
Fires reported
0
owner-reported
Recall campaigns
3
7 crashes · 1 injuries

Complaints by component

UNKNOWN OR OTHER19 · 28%
STRUCTURE18 · 27%
BACK OVER PREVENTION14 · 21%
ELECTRICAL SYSTEM12 · 18%
SUSPENSION9 · 13%
LANE DEPARTURE2 · 3%

The years either side

Manufacturers fix things mid-generation. A bad year next to a clean one is common; the fix usually arrived in between.

How the 2018 compares with other Ford Flex years

Of the 10 Ford Flex years with enough complaints to score, the 2018 is the 2nd-best on engine and transmission share (6%). The worst is the 2010 (44%), the best the 2019 (4%). By volume, the 2018 drew 67 complaints (4 drivetrain), against 42 for the 2017 and 251 for the 2019.

Ford Flex years to avoid and best years →

In the full report

The rest of the picture on the 2018 Ford Flex

  • Up to 15 owner reports, with the ones about your car's own engine first.
  • What to ask the seller and what to check on the test drive, for this car.
  • Two cars side by side, if you are deciding between them.

What one owner reported

ENGINE05/27/2026
An antifreeze leak is very hard to locate because Ford’s design placed the water pump INside the engine rather than on the OUTside, which would be more the norm. If antifreeze leaks enough, it gets into the oil and the entire engine stands to be destroyed. Our heater quit blowing warm air recently and after intently s…

One of 4 drivetrain complaints. The full report shows up to 15, with quotes about the engine in the car you are looking at first.

2018 Ford Flex engine and transmission recalls

No engine or transmission recalls. NHTSA lists 3 recall campaigns on the 2018 Ford Flex, none of them for the engine, transmission or fuel system. A recall is the manufacturer admitting a defect and paying to fix it; whether a specific car still has one open depends on its VIN, which the full report checks. The owner complaints above are a separate record and often point at problems that never became a recall.

3 other recalls on this model year (airbags, lighting, brakes and the rest)
structure: body25V732000 · Oct 2025
Ford Motor Company (Ford) is recalling certain 2017-2019 Flex vehicles. The driver and front passenger B-Pillar door trim may detach while driving.
back over prevention: sensing system: camera25V695000 · Oct 2025
Ford Motor Company (Ford) is recalling certain 2015-2019 Flex, 2015 Explorer, Lincoln MKT, Lincoln MKZ, 2015-2016 C-Max, Escape, Taurus, 2016 Fusion, 2018-2019 Taurus, 2019 Lincoln MKT, Fiesta, and…
suspension: rear20V072000 · Feb 2020
Ford Motor Company (Ford) is recalling certain 2013-2018 Lincoln MKT and Ford Flex and Taurus vehicles with the Police Interceptor or SHO Performance Pack. The rear suspension toe links may fracture…

Source: NHTSA recall campaigns filed against this year, make and model. Checked October 3, 2026.

Checking one particular 2018 Ford Flex? This page is about the model year. Accidents, title brands and odometer records belong to the individual car, and that is what a vehicle history report covers.

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Questions people ask about the 2018 Ford Flex

Does the 2018 Ford Flex have engine or transmission problems?

Not as a pattern, going by owner complaints. 4 of 67 relevant complaints filed with NHTSA about the 2018 Ford Flex concern the engine, transmission or fuel system (6%). It describes the model year, not any one car, so an inspection still matters.

What is the most common problem with the 2018 Ford Flex?

Going by NHTSA owner complaints, the most common problem filed against the 2018 Ford Flex is structure: 18 of 67 complaints (27%) name it, followed by back over prevention (14) and electrical system (12). A complaint can name more than one component, so these overlap. Engine, transmission and fuel-system complaints together make up 6% of the relevant total.

Is the 2018 Ford Flex reliable?

On the engine and transmission, nothing stands out: 6% of relevant complaints filed with NHTSA concern the drivetrain, below the 33% line where we call a signal elevated. That is better than 99% of the 1,790 model years we track. Among the 10 Ford Flex years we score, it ranks 2nd-best. Complaint data describes the model year, not one car, and it says nothing about trim, paint or electronics outside the drivetrain; an independent inspection still decides it.

Are there engine or transmission recalls on the 2018 Ford Flex?

No. NHTSA lists 3 recall campaigns on the 2018 Ford Flex, none of them for the engine, transmission or fuel system.

Which Ford Flex years are better?

Among the Ford Flex years we track, the 2019 (4%) has a lower engine and transmission complaint share than the 2018 (6%). Manufacturers fix things mid-generation, so the year before or after can be a different car. Every year side by side: https://thelanecheck.com/cars/ford-flex

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Experimental model-level information. This is not a vehicle inspection, vehicle-history report, financial advice or purchase recommendation. It describes patterns across a model year, not the condition of any individual vehicle.