2017 Lincoln MKZ Complaints

ENGINE — Filed 02/10/2026

I own a 2017 Lincoln MKZ equipped with the 2.0L EcoBoost engine. At approximately [MILEAGE] miles, the vehicle began experiencing loss of coolant, rough running/misfire, shaking/rough start, and reduced engine performance. The vehicle was diagnosed by a Ford/Lincoln dealership as having coolant intrusion into the engine/cylinders and/or engine block failure, requiring engine/long-block replacement. The estimated repair cost was approximately $8000. This creates a safety concern because coolant intrusion can cause misfires, overheating, engine damage, and possible loss of power while driving. Ford/Lincoln has issued Technical Service Bulletin 19-2346 and superseding bulletin 22-2229 for 2017–2019 Lincoln MKZ vehicles equipped with the 2.0L EcoBoost engine. These bulletins describe low coolant, white exhaust smoke, rough running, misfire codes, overheating codes, and coolant intrusion into the cylinder, with the prescribed repair being long-block engine replacement. Despite this known documented condition, Lincoln/Ford denied assistance because the vehicle is outside warranty. I am reporting this as a potential safety defect because the failure can occur without adequate warning and may cause engine overheating, misfire, or loss of power while the vehicle is being operated.

ENGINE — Filed 06/03/2026

Took car into Ford dealership service because the check engine light came on. The car was sounding a little rough also. When they called me, I was expecting a tune up or just a sensor issue, but I was told that I needed a new engine! The tech found dtc P0302 for misfire on cylinder number 2, found coolant on spark plug. Cylinder #2 was cracked and leaking coolant into it. Was told it would lead to catastrophic failure. Was told I needed a long block replacement at the tune of $9,000. The service tech called Ford to help with the costs, but since I didn't have an extended warranty, they wouldn't do anything. The car has been barely driven and taken well care of. I bought it in 2019 with 12k miles and now in 2026 it only has 69k miles. I have researched and found out that this is a systemic issue. Had I not replaced the engine it could of been catastrophic! I have been with Ford since I started driving in the early 80's. This is unacceptable. According to several reports, this has been reported many times (maybe thousands?). I wonder how many are NOT reported. Ford needs to reimburse for the defective engine.

ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL — Filed 05/01/2026

2017 Lincoln MKZ was taken to Community Ford Lincoln of Bloomington (Auto Vest II LLC), Bloomington, IN for service on 05/01/2026. No ABS, Traction Control, or AdvanceTrac warning lights were present at drop-off. After the vehicle was returned, all three warning lights were illuminated. The ABS/stability control system had been damaged during the service visit. Diagnostic codes C0031:07 and C0031:15 (left front wheel speed sensor circuit fault) were confirmed in writing by the dealership service manager on 06/09/2026. The dealership denied responsibility. An independent Ford/Lincoln dealer (Tom Roush Lincoln) estimated repair at $310. The servicing dealer offered only partial reimbursement of $169.45. The ABS and stability control systems are safety-critical. Their failure compromises emergency braking performance and vehicle stability, putting driver and other road users at risk. The vehicle has been unavailable for normal use since [XXX]. The problem was confirmed by an independent Lincoln dealership. The vehicle is available for inspection. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

ENGINE — Filed 06/08/2026

2.0yt coolant intrusion. Needs long block replaced. So basically a motor. Ford knows about this.

SERVICE BRAKES, HYDRAULIC — Filed 05/06/2026

The contact owns a 2017 Lincoln MKZ. The contact stated that while driving approximately 40 MPH the brake warning light had illuminated and the brake pedal extended to the floor and the vehicle did not immediately stop while pressing the brake pedal. The vehicle was slowly driven to a nearby garage who diagnosed that the rear brake hoses had failed causing brake fluid leak from the vehicle and the brake master cylinder had also failed. The mechanic informed that both rear brake lines were installed making contact with the transmission and eventually became damaged. The rear brake lines and master cylinder were replaced. The local dealer and manufacturer were not notified of the failure. The failure mileage was 153,000.

ENGINE — Filed 07/03/2025

Greetings, I am adding my name to what has to be thousands of complaints about engine failure do to antifreeze intrusion. Ford should be replacing these engines for free. I also own a 2019 and waiting to have to spend another 8 grand on it.

POWER TRAIN — Filed 04/08/2026

The contact owns a 2017 Lincoln MKZ. The contact stated that while driving at speeds above 30 MPH, there was a rumbling sound and vibration coming from underneath the vehicle. The vehicle was taken to the local mechanic who informed the contact that the transmission torque converter was inoperable and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and informed that the VIN was not included in NHTSA Campaign Number: 18V390000 (POWER TRAIN). The contact stated that the vehicle had experienced the failure listed in the recall. The local dealer was not contacted. The failure mileage was 107,000.

ENGINE — Filed 11/14/2025

The vehicle lost power on the highway due to an overheating issue. Very dangerous when this happens while your going 70 mph. The vehicle was later determined to be a victim of Ford's known 2.0L Ecoboost engine that due to Ford's defective design, which Ford admits but refuses to issue a recall for. The ONLY fix for this problem is to have the long block replaced at a cost of over 9,000.00. Not exactly Ford looking out for the safety of their customers.

BACK OVER PREVENTION — Filed 03/30/2024

The contact owns a 2017 Lincoln MKZ. The contact stated that upon shifting to reverse(R), the rear-view camera image was delayed and briefly distorted while displayed. The dealer was not contacted. The manufacturer was notified of the failure and informed the contact that the VIN was not under recall. The contact was referred to the dealer for a diagnostic test. The vehicle was not yet diagnosed or repaired due to the cost. The failure mileage was approximately 55,000.

ENGINE — Filed 03/18/2026

Coolent intrusion, coolent leaking into cylinder number 2 causing a misfire and excessive white smoke every time I start the vehicle, seems this is a manufacturing flaw from the research I've done with so many other people having the same complaints because the engine block is the cause of the problem the way they designed it ford acknowledged the problem saying it's the engine block because of a poor design only way to fix this is with a new redesigned engine block and that cost a lot of money I think Ford should be held accountable and should do a recalls on these and get these fixed this is not right.