2018 LINCOLN MKC Problems & Complaints

Coolant intrusion in engine

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 [XXX] 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 # [XXX] 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)

The contact owned a 2018 Lincoln MKC. The contact stated while attempting to start the vehicle, the check engine warning light illuminated. A dealer was contacted. The vehicle was taken to a dealer where it was diagnosed coolant intrusion into the engine and that the engine needed to be replaced. The vehicle was repaired. The contact stated that the vehicle was traded. The manufacturer was notified of the failure, and informed the contact that the VIN was not under recall. The contact was referred to the NHTSA Hotline for assistance. The failure mileage was 57,000.

The contact owns a 2018 Lincoln MKC. The contact stated that when the vehicle was cold-started, the vehicle shuddered, shook abnormally, and idled roughly. The contact stated that the check engine warning light was illuminated. The contact stated that the vehicle was still running rough after the engine had reached normal operating temperatures. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that there was coolant intrusion into the cylinders, and the engine needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 49,000.

The contact owns a 2018 Lincoln MKC. The contact stated that there was a misfire coming from the engine while starting the vehicle. While inspecting the vehicle, the coolant level was extremely low. The check engine warning light was illuminated. The vehicle was taken to a local dealer where the vehicle was diagnosed, and the contact was informed of coolant intrusion into the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 69,349.

The contact owns a 2018 Lincoln MKC. The contact stated while the vehicle was parked, the contact attempted to start the vehicle however, the message "Engine Coolant Over Temperature" was displayed, and the check engine warning light was illuminated. The vehicle was towed to a dealer and was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure but offered no assistance. The contact was referred to the NHTSA Hotline to report the failure. The failure mileage was 92,000.

The contact owns a 2018 Lincoln MKC. The contact stated that an unknown warning light was illuminated. The vehicle was taken to an unknown dealer, where it was diagnosed that there was a misfire coming from ignition coil #3. The dealer replaced the ignition coils; however, the failure recurred several times. The vehicle was taken to the dealer, where the diagnostic trouble codes were cleared. Additionally, the contact stated that the vehicle was experiencing excessive coolant consumption. The contact stated while driving 30 MPH, the engine overheated. The contact pulled over to the side of the road. The contact then drove to the nearest Auto Zone, where coolant was added to the vehicle; however, the failure recurred a week later. The contact stated that the vehicle also experienced excessive fuel consumption. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and informed the contact that the VIN was not under recall. The failure mileage was approximately 99,000.

When purchasing new tires today, we were informed that we needed to replace the lug nuts as the lug nut wrench no longer fit the top of the nuts. We were told that they often have this problem with Lincolns and some Fords. He said they could "force" the old ones back on, but the next time they would have to be cut off and replaced. We researched this problems and found that others had the same problem. This is not acceptable - especially if out on the road and we get a flat tire. I only wonder if the recent accident when a tire flew off the truck on the freeway and hit another car causing it to flip over was because their lug nuts were "forced" on. This cost us an additional $60 and would have been even more if they would have had to cut the old ones off.

The contact owns a 2018 Lincoln MKC. The contact stated that while at the dealer for routine maintenance, the mechanic discovered multiple wheel lug nuts had swollen and the wheels could not be removed using the standard wrench supplied by the manufacturer. The contact indicated that the failure was present on each of the four wheels. The cause of the failure was not yet determined. The contact was informed that the lug nuts needed to be replaced. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 50,400.

The contact owns a 2018 Lincoln MKC. The contact stated that upon having the tires serviced by an independent mechanic, the mechanic informed him that all the lug nuts were swollen and difficult to be removed. The dealer was notified of the failure and the contact was given an estimate for the repair. The manufacturer was also notified of the failure and informed him that they were aware of the failure; however, the parts were on backorder. The vehicle was not repaired. The failure mileage was 23,480.

AFTER LESS THAN 26000 MILES THE TIRES ARE REPORTED BY FORD MAINTENANCE TO BE WOREN TO A DANGEROUS LEVEL WHEN TRAVELING THERE IS A LOUD NOISE FROM TIRES

The contact owned a 2018 Lincoln MKC. The contact received notification of NHTSA Campaign Number: 25V572000 (Back Over Prevention); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The contact stated that while attempting to reverse out of their driveway in the rain at approximately 2 MPH, the back-over prevention camera display of the rear view of the vehicle was distorted, and the contact was only able to see a black image. The contact was unable to identify what the image was, and the back-over prevention system did not notify the contact of any objects with its chime/alarm. The vehicle continued to move in reverse and ended up crashing into a tree. The vehicle's rear passenger side was damaged. The contact was able to exit the vehicle and had not received any physical injuries. The contact stated they had suffered anxiety as a result of the crash, and medical attention was needed. The vehicle was towed and totaled. A police report was filed. The dealer was not contacted. The manufacturer was informed of the issue. The failure mileage was approximately 42,000.

The contact owns a 2018 Lincoln MKC. The contact received notification of NHTSA Campaign Number: 25V572000 (Back Over Prevention); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure.

REAR DECK DOOR DOES NOT FULLY CLOSE AND LOCK, CAUSING THE SYSTEM TO CONTINUALLY ATTEMPT TO CLOSE AND LOCK IT. CAUSING THE BATTERY TO BECOME FULLY DISCHARGED WHEN PARKED.

SUNROOF HAS A LARGE CRACK IN IT AND LINCOLN DEALERSHIP STATES IT WAS HIIT BY SOMETHING. NOTHING HIT THAT GLASS. LINCOLN WILL NOT COVER THE CHARGE AND WANTS TO CHARGE ME$1500. THE GLASS SUNROOF IS DEFECTIVE

The contact owns a 2018 Lincoln MKC. The contact received notification of NHTSA Campaign Number: 25V572000 (BACK OVER PREVENTION). The contact stated that while driving at 35 MPH, the vehicle revved and then the vehicle stalled. No warning lights were illuminated. The vehicle failed to restart. The contact's brother was following the contact and assisted with traffic. The Sheriff’s Department assisted with traffic control. The vehicle was towed to the residence. The vehicle was then towed to an independent mechanic, who diagnosed the vehicle and determined that the flywheel had fractured. The vehicle was repaired. The contact was later informed that the steering power harness had failed and needed to be replaced. The vehicle remained at the dealer pending the repair. The contact stated that afterwards, oil stains were found on the ground in the driveway. The manufacturer was not notified of the failure. The failure mileage was approximately 92,000.

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.

1st Engine Failure Dec 2021 due to coolant intrusion and the long block engine needed to be replaced. After the repair I came to look at it & I found, Bolts were missing—including from the undercarriage, battery mount, & power steering reservoir, splash guard, inner wheel well shield. Tools (10mm Snap-on socket & unidentified loose bolts) were left inside the engine bay. The coolant hose came loose, which your team tried to charge $4,000 to fix, despite it being clearly related to poor installation of the engine. The engine mounts—normally last 10-14 yrs before needing to be replaced—suddenly failed. Wiring harnesses weren’t secured, not informed of new engine warranty coverage being only for 1 yr. 2nd Engine Failure (Dec 2024): Less than 22k miles later, the engine failed again—this time 4 months outside the so-called 1-yr warranty that I was never told about. Now, I’m expected to pay out of pocket for another engine, which would conveniently include a 3-yr warranty this time. Why wasn’t the 1st replacement engine covered under the same terms? Purchased with: 45,000 miles 1st engine failed at: 53,594 miles, Coolant hose/engine mount issues: 61,000 miles, 2nd engine failed at: 84,193 miles if inspection is needed, I have photos. It has been confirmed by northpark lincoln dealership. It was inspected by the manufacturer and other mechanics, not affiliated with dealership. No warning signs no warning lamps no codes thrown no nothing until the loss of acceleration and torque combined with the amount of white smoke coming out of the tailpipe in the middle of the summer. It was the only notification it was too late by that point the damage has been done. On both occasions, the exact same thing happened no warning lights no check engine lights no MIL lights, or codes thrown just simply a huge cloud of dust coming from the tailpipe, and you lose almost all power and acceleration. Symptoms appeared after the damage had been done so no way to tell that something wrong prior.

The contact owns a 2018 Lincoln MKC. The contact stated that when the vehicle was started, the side view mirrors folded inward. The contact was turned off and restarted the vehicle, but the mirrors remained in the folded position. The contact stated that after 20 minutes of turning the vehicle off and on, the mirrors unfolded. Additionally, the contact stated that the driver's side seat lumbar system was independently changing adjustments and was overriding the preset seat adjustments. The contact had not taken the vehicle to a local dealer or independent mechanic. The vehicle was not diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 61,000.

Engine light came on and showed misfire in cylinder 4. Changed spark plug and engine coil. Still had engine light on and misfiring. Car drove in power safety mode. After much diagnosis and inspection, master mechanic found coolant leaking into the cylinder walls due to a faulty (poorly manufactured) head gasket. Coolant intrusion caused white exhaust smoke, damage to the engine block and risk of fire. Shop replaced head cylinder and gasket with current oem parts that appeared to be revised. Vehicle remains to drive in poor condition with 54k miles. Powertrain warranty did not cover this expense being the vehicle met the 6 year mark in March 2024.

I purchased the automobile on [XXX] with 44,175 miles. When the engine light came on recently, I took it to the Lincoln dealer here in Las Vegas, paid $205 for the computer to be assessed, and was told the problem was coolant leaking into the engine. They were not able to start any repairs at that time. I was not told what it would cost to repair or the time involved. I assumed it was an air conditioning problem. I drove it a few days and the engine light went off, only to come back on. I then took it to AAA ($177 for the diagnosis), reporting that cylinder 3 had coolant leaking. Tech found TSB 19-2172 TSB. 19-2172 is for current symptoms of misfire at start-up. It was suggested that I take it to the Lincoln dealer. While driving the car home on [XXX], the engine was missing, chugging. I was afraid it would stall. I am thankful it did not stall on the freeway and that I made it home safely. When I called the Lincoln dealer to make an appointment to take the car in for service, I was told it would take three or four weeks to get it repaired, that the engine would have to be replaced for $7,800 - $9,800, and that Lincoln Motor Company will not take any responsibility. He said there were two other vehicles in line with the same problem. Due to being afraid to drive it, I had the car towed by AAA on Monday, October 7, 2024, to the Lincoln dealer and was told the estimate to repair it would be $8,493. This is a coolant intrusion issue due to a faulty design in the engine block where the cooling channels will crack and leak coolant into the piston chambers. As gleaned from the Internet, this appears to have been an ongoing problem with this model. I've observed so far from the Internet that Lincoln Motor Company is not taking responsibility for this faulty design affecting many Lincoln owners. I am [XXX], and living on a fixed income. I had to rent a car and put up a $735 deposit. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

My car has 2 recalls 1. RISK OF UNDERHOOD FIRE and 2. pcm reprogramming recall, Took my car to Lincoln service center they only fixed the 2nd one which is the PCM reprogramming. They called me and said my car is ready for pick up. After couple of hours I’ll check in your website STILL the under hood fire recall wasn’t fix so what should I do. This is too UNSAFETY to drive and park i need your help thank you

The contact owns a 2018 Lincoln MKC. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate however, the engine overheated. Additionally, the check engine warning light was illuminated. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 41,000.

Backup camera, side blind-spot warning and park assistant failed due to inoperative DC/DC converter. All failed items safety related. Dealer service tech confirmed problem and cause. This system has been a subject of recalls on previous model years. Warning system on dashboard indicated failure of these systems.

The contact owns a 2018 Lincoln MKC. The contact stated that after refueling, the vehicle would not immediately start. The driver had to turn the ignition key and depress the accelerator pedal simultaneously to start the vehicle. Additionally, while attempting to refuel the vehicle, the fuel nozzle would constantly click off and on. The vehicle was taken to the local dealer who replaced a fuel system line and the failure was remedied. No further information was available. The manufacturer was also notified of the failure. The failure mileage was 54,000.

******* DELETE VOQ ******* THIS COMPLAINT IS BEING MARKED FOR DELETION BECAUSE IT IS AN INADVERTENT DUPLICATE OF ODI# 11477621 *DJR ******* DELETE VOQ *******

I purchased this vehicle in 2020 and it came with these tires. THREE of the four tires either had a bubble or repeatedly lost air around 28000 miles. These are very unsafe tires and unlikely a road hazard damaged three of the four.

TL* THE CONTACT OWNS A 2018 LINCOLN MKC. THE CONTACT STATED THAT ON SEVERAL OCCASIONS AFTER THE VEHICLE WAS PARKED WITH THE ENGINE TURNED OFF, THE CONTACT EXITED THE VEHICLE AND VEHICLE STARTED TO ROLL AWAY. THE CONTACT ATTEMPTED TO REENTER THE VEHICLE BUT WAS UNABLE TO DO SO. THE CONTACT FELL AND SUSTAINED SEVERAL BRUISES AND MINOR CUTS. THE CONTACT WAS CERTAIN THAT THE SHIFT LEVER WAS SWITCHED TO THE PARK POSITION. THE VEHICLE THEN CRASHED INTO A LIGHT POLE. THE VEHICLE WAS TAKEN TO HERITAGE LINCOLN INC LOCATED AT 900 W GENESEE ST, SYRACUSE, NY 13204, (315)472-4534 TO BE DIAGNOSED, HOWEVER THE RESULT WAS STILL PENDING. THE DAMAGE TO THE VEHICLE WAS REPAIRED, THERE WAS NO ADDITIONAL REPAIRS MADE TO THE VEHICLE. THE MANUFACTURER WAS NOT CONTACTED NOR INFORMED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 10,000. THE VIN WAS NOT AVAILABLE. *BF *TR

THE DEALER THAT SOLD ME MY VEHICLE GAVE ME THIS DEFECTIVE CAR WILE MY VEHICLE WAS BEING SERVICED FOR ISSUES. I WAS WITH MY WIFE AND STOPED TO BUY HONEY AT A STAND AT THE CORNER OF AN INTERSECTION IN DELRAY BEACH, I PARKED THE CAR AND LEFT THE CAR ON OPENED THE DOOR AND WENT OUT TO BUY HONEY, MY WIFE WAS ON THE PASSENGER AND ALSO CAME OUT , LEFT THE DOOR OPEN, WE WHERE ABOUT 7 MIN TALKING WITH THE GUY AT THE HONEY STAND WHEN ALL THE SUDEN THE CAR WAS COMING AT US, THANKFULLY THE THREE OF US WHERE NOT RUN OVER , I RAN AS FAST AS I COULD TO GET INSIDE THE DRIVER SIDE TO PUT THE BRAKE AND WAS ABLE TO STOP IT, THE VEHICLE WAS GOING TOURD A MAIN ROAD (JOG RD) SCARIEST MOMENT .......

TL* THE CONTACT OWNS A 2018 LINCOLN MKC. WHILE DRIVING APPROXIMATELY 65 MPH, THE LANE DEPARTURE SAFETY FEATURE ACTIVATED TO CORRECT THE VEHICLE FROM VEERING OUT OF THE LANE. THE LANE DEPARTURE FEATURE STEERED THE VEHICLE TOO FAR TO THE LEFT, CAUSING THE VEHICLE TO CRASH INTO THE MEDIAN AND FLIP OVER. THE VEHICLE SUSTAINED SEVERE FRONT END DAMAGE, BUT THE FRONT AIR BAGS DID NOT DEPLOY. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO AN UNDISCLOSED LOCATION. THE DRIVER, FRONT SEAT PASSENGER, AND REAR DRIVER SIDE PASSENGER ALL SUSTAINED HEAD, NECK, AND BACK INJURIES THAT REQUIRED MEDICAL ATTENTION. THE MANUFACTURER AND LOCAL DEALER (MOUNTAINEER LINCOLN IN BECKLEY, WV) WERE NOTIFIED OF THE FAILURE, BUT THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE FAILURE MILEAGE WAS 2,382.