Skip to content
EnginePart report

2018 Lincoln MKZ Engine Problems

Complaints
13about this part
Share
36%of 36 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 13 complaints about the engine of the 2018 Lincoln MKZ, 36% of the 36 complaints for this model year.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“The engine light came on. The car suddenly wouldn’t go past 35 mph . Thankfully I was on a local road. I had it towed to the dealer and was told that the engine needed to be replaced because coolant leaked into the engine. There were no warning lights except the day of . The car did not give any indication of a leak. Nor was it running hot. Everything was functioning fine.”

NHTSA complaint #11748460, filed 2026-07

“While driving, the car stalled. I could not restart it. It was towed to Lincoln Dealer and determined that coolant had leaked into the cylinders and seized the engine. This is a known defect on the Ford EcoBoost Engine. Fully aware of the defect, Ford redesigned the engine in 2019 for later models. I am now faced with the huge expense of having Lincoln replace the engine. Ford needs to take responsibility and pay for this. Please help me.”

NHTSA complaint #11764046, filed 2026-09

“My Check Engine Light came on, I took my car to the dealership that I have using for eight years with less than 38k miles on it and I was told by the service technician who gave the diagnose as, there was coolant in the cylinder where the spark plug #3 is housed. He stated that the car is misfiring and I was told I needed to get an new engine replace to correct the problem. I was given a Service Bulletin stating the manufacturer knew of the problem with this model. …”

NHTSA complaint #11743958, filed 2026-06

“Initially when buying the vehicle in 2021, it had 30k miles. Car continued to give me a cylinder 2 misfire code after numerous trips to different garages and then the car beginning to start up rough and anti freeze missing i came across a service bulletin regarding it being a faulty ring in the engine. I took the vehicle to Ford and they replaced the engine. My car just hit 100k miles All of the sudden one day when trying to stop at a red light the car was shaking . …”

NHTSA complaint #11634568, filed 2025-01

“I own a 2018 Lincoln MKZ. The vehicle Engine overheating warnings came up, and I took the car to the dealership. They informed that the Lincoln MKZ vehicle had a frequent problem with coolant leaking into the engine due to faulty power train assembly. The dealer has seen and repaired hundreds of vehicles with this problem. Lincoln company denies responsibility for this manufacturing defect. The vehicle is only 7 years 3 months and 30 days old with 67914 miles used by single owner. …”

NHTSA complaint #11640579, filed 2025-02

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2019838%
20181336%
20177654%
201669%
201578%
20141010%
2013109%
201253%
2011107%
201053%
200944%
200852%
200762%

Other parts of the 2018 Lincoln MKZ

Transmission and drivetrain
9 complaints
Other or unknown
5 complaints
Engine cooling
3 complaints
Electrical system
2 complaints
Exterior lighting
2 complaints
Fuel system
2 complaints
Lane departure
2 complaints
Air bags
1 complaints
Back-over prevention (rear camera)
1 complaints
Brakes
1 complaints
Body and structure
1 complaints
Visibility (wipers, defrost, mirrors)
1 complaints

← All problems reported for the 2018 Lincoln MKZ

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology