2018 Lincoln MKC Engine problems

The contact owns a 2018 Lincoln MKC. The contact stated that the check engine warning illuminated while the vehicle was parked. The vehicle was taken to the dealer, who determined that there was coolant intrusion in the cylinders, and that the engine needed to be replaced. The dealer replaced the engine. The manufacturer was notified of the failure by phone. The failure mileage was approximately 72,000.

10/26/26, took vehicle in for service due to a rough start. Was notified by phone the vehicle was diagnosed with the engine coolant intrusion and was found to have low coolant. The vehicle had just been inspected the week prior and all levels were acceptable. Engine needed to be replaced. Just under 68000mi. This known engine issue/documented defect needs addressed and at minimum, customer notified BEFORE it happens to them.

The contact owns a 2018 Lincoln MKC. The contact called on behalf of his wife who stated while driving at an undisclosed speed, the vehicle stalled. The vehicle was towed to an independent mechanic where it was diagnosed that there was an eco boost coolant intrusion and that the spark plugs and coils needed to be replaced. The vehicle was repaired however, the failure persisted, and the check engine warning light was illuminated. The vehicle was taken back to the independent mechanic where it was diagnosed that there was a blown head gasket that needed to be replaced. The failure mileage was approximately 70,000.

Rough idle at start up persisted as I got onto the road and caused near complete loss of drivability as "check engine" light appeared for the first time. Had towed to mechanic who replaced coils and plugs. One month later, check engine light appeared again. Brought back to mechanic who looked it over and said it was fine. Two weeks later, third apperance of check engine light. This time, I took to Lincoln dealership who ran appropriate diagnostics and confirmed one week later this is the coolant intrusion defect that will require a long-block engine replacement for $12,500. Car has 55,000 miles.

Engine has a known defect causing coolant to leak into cylinders. Car is not safe to drive as car can overheat, blow gasket, loose power, catch fire while operating.

The contact owns a 2018 Lincoln MKC. The contact stated that upon attempting to start the vehicle, the engine misfired. The dealer was notified of the failure. The vehicle was taken to the dealer, where it was diagnosed that coolant intrusion had resulted in the engine failure, and it was determined that the engine needed to be replaced. The manufacturer was notified of the failure by phone. The failure mileage was approximately 73,617.

I own a 2018 Lincoln MKC equipped with the 2.0L EcoBoost engine. The vehicle currently has approximately 72,326 miles. The check-engine light initially illuminated and an OBD scan produced code P0303, indicating a misfire in Cylinder 3. No other diagnostic codes were reported. Following mechanical evaluation, all four spark plugs and ignition coils were replaced. Approximately 145 miles later, the check-engine light returned with the same P0303 code. The code was cleared to confirm recurrence, and approximately...

My engine failed. At the time I did not know this. I was driving to work, and although I knew I was not out of gas according to the gas gauge, I thought maybe something was wrong with the gauge when my Lincoln began to putter like when you are running out of gas. I was approaching a stop light in the left turn lane when the car died. Which could have caused a multi car pileup considering the intersection in my town I was at. I got the car to start again but it smelt terrible and started smoking from the exhaust. A...

I am experiencing a coolant-intrusion problem with my 2018 Lincoln MKC, equipped with a 2.0L EcoBoost engine. The vehicle has only 63,900 miles. •The check-engine light repeatedly came on and went off over a two-week period. •A Lincoln dealer performed a diagnostic evaluation and identified the same problem reported in other Ford and Lincoln vehicles with this engine. •An independent automotive service provider confirmed the diagnosis and advised me that Ford had issued a service bulletin addressing this exact...

The contact owns a 2018 Lincoln MKC. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to a dealer where it was diagnosed and determined that there was coolant leaking into the engine, causing a misfire. The contact was informed that the long block needed to be replaced. The dealer informed the contact not to drive the vehicle out of town and stated that the vehicle might stall while driving. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 37,500.

I am thoroughly disappointed and overwhelmed. My vehicle has 122,000 miles on it. Yes that may be considered many for some but this vehicle has been taken care of extensively and all routine scheduled maintenance has been performed. I purchased from Preston Ford in Pittsville, MD and the vehicle had 48000 miles as a used vehicle. I have had many minor issues,(fuel flap), A/C issues and 2 recalls for back up camera and the vehicle had a recall stating the car may catch on fire so don't park near other structures....

Misfiring and then smoke in tail pipe. Just hit 70,000 miles and the engine needs replacing. A defect that's been known since I bought the car.

Check engine light came on. Next day had a diagnostic run on it and found the coolant intrusion into cylinder 2. A new TSB 19-2208 was recommended. Talked with dealership and they advised to contact Ford Customer Care, who had Roadside Assistance come and pick up the 2018 Lincoln MKC and take to dealership. Dealership called to advise that the cost to me would be $9400!!!. Called Ford Customer Care again and was told that there is no recall or program to assist with repair, BUT....if enough people make a...

Dealer confirmed there is a coolant intrusion in the engine and the engine needs to be replaced due to a known defect.

The check engine light came on and car started to over heat when taken into shop was told need to replace entire engine this is a known issue in these make / model cars with these engines and it is not being addressed

Ford is well aware of the scam and refuses to fix the faulty engine for millions of these vehicles. 2018 MKC is trash. Already rebuilt the engine, turbo is garbage and the coolant will continue to leak with new engine because it's a flawed design. They are fully aware but greed is more important than safety or a satisfied customer. I pray the are held accountable eventually.

The check engine light came on and it would run rough when started. It was determined the number four cylinder head was cracked, allowing antifreeze to leak into the engine block. I bought the car new in January 2019. The problem appeared with under 57,000 actual miles. The car has always been serviced on time at the dealership. The cost to fix the problem with a new engine is approximately $10,000. I bought the car new so that I would not have problems. It is my only form of transportation. In...

I was driving home from work on December 24th 2025 and my 2018 lincoln mkc 2.3l shut off on me while I was in motion. There were several cars that had to swerve and not hit me. The car would not start but I was able to put the vehicle in neutral and roll to the shoulder of the road. I was very scared and angry because this vehicle only has 54,646 miles currently, give or take 50 miles. I had to get the towed to my home. This needs to be resolved and Fird/Lincoln needs to faithfully fix this dangerous defect, i could have died. Please please do something because I do not want anyone else to deal with this.

Coolant intrusion in engine

The contact owns a 2018 Lincoln MKC. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to the dealer where it was diagnosed with engine failure. The contact was informed that the failure was due to coolant intrusion into the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. In addition, the contact referenced NHTSA Campaign Number: 25V685000 (Equipment); however, the VIN was not included in the recall. The failure mileage was approximately 42,000.

Car had engine light come on, was told from dealer need completely new engine despite only 70k miles. Is a known issue, please protect US consumers.

Check engine light came on. The engine has coolant intrusion and the engine would have to be replaced, quoted me $17,240.83 I called [[redacted]] Lincoln client relationship center and I was told there was nothing they can do to help me. After doing some research, this has been a known problem by Lincoln and they have not put out any recalls. They also have a class action lawsuit against them INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The engine light has appeared approximately in April 2025. The inspection advised that the engine code indicated a misfire in cylinder 4. The engine rough idles when started. The coolant loss is extensive due to an engine issue and must be constantly filled.vwe were told by, iPaul's Repair shop, that upon calling Ford, that there was a Lincoln technical service bulletin re: the 2 liter eco boost engine. It was re coolant intrusion into the cylinders. Service bulletin # 19-2346. We have also replaced the spark plugs and coils. The engine light still came on with the same issue. It did not solve the problem of a DEFECTIVE ENGINE.

I am writing regarding my 2018 Lincoln MKC, VIN # [[redacted]] which is experiencing clear symptoms of coolant intrusion into the cylinders. These include low coolant levels, white exhaust smoke, engine misfires, and a rough-running condition. According to **Technical Service Bulletin 19-2346** (NHTSA ID 10169807, dated December 20, 2019), this issue is a known defect affecting MKC models with the 2.0L EcoBoost engine and recommends replacement of the long-block assembly to correct the problem. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Kirk Brothers ford supposedlly put a new engine in my vehicle. I've had issues with it ever since they supposedly put the engine in. I had another mechanic just look at it on 14AUG25 and he informed me that the engine was shot.