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2018 Lincoln Mkx Maintenance Schedule

Manufacturer-recommended service intervals for the Intelligent Oil-Life Monitor and open recall alerts for your 2018 Lincoln Mkx.

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Recalls5Full scheduleKnown issues5

How Lincoln schedules service: Intelligent Oil-Life Monitor

Lincoln uses Ford's Intelligent Oil-Life Monitor: it tracks how the vehicle is actually driven and calls for oil service when needed — up to 10,000 miles or 12 months on normal duty, much sooner with towing or repeated short trips. EcoBoost-powered Aviators and Nautilus models are turbocharged: heat is their maintenance story, so oil quality and cooling-system health matter more than on the old naturally aspirated V8s. Traditional V8 Navigators and Town Cars are long-interval machines — 100,000-mile plugs — that mostly reward fluid discipline.

⚠️

5 Open Recalls

Source: NHTSA

SERVICE BRAKES

Campaign #20V469000 · Oct 8, 2020

Issue: Ford Motor Company (Ford) is recalling certain 2015-2018 Ford Edge and 2016-2018 Lincoln MKX vehicles. The front brake hoses may rupture prematurely.

Risk: A ruptured front brake hose will cause a brake fluid leak, lengthening the distance needed to stop the vehicle, increasing the risk of a crash.

Fix: Ford will notify owners, and dealers will replace the front brake hoses with the new hoses that have a revised braid material, free of charge. Owner notification letters were mailed on May 13, 2021. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 20S42.

LATCHES/LOCKS/LINKAGES:DOORS:LATCH

Campaign #18V612000 · Nov 9, 2018

Issue: Ford Motor Company (Ford) is recalling certain 2018 Ford Edge and Lincoln MKX vehicles. These vehicles may have door striker bolts that are shorter than intended. Vehicles with shorter door striker bolts fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 206, "Door Locks and Door Retention Components" potentially resulting in the doors opening in the event of a crash.

Risk: If the doors open in the event of a crash, there is an increased risk of injury.

Fix: Ford will notify owners, and dealers will replace the door striker bolts, free of charge. The recall began October 18, 2018. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 18C06.

SEATS:FRONT ASSEMBLY:POWER ADJUST

Campaign #20V414000 · Jul 17, 2020

Issue: Ford Motor Company, Inc. (Ford) is recalling certain 2016-2018 Lincoln MKX and 2019-2020 Nautilus vehicles equipped with 16-way electric tilt seats. The seat cushion frame edge may contact the wire harness when the seat occupant uses the tilt function of the seat, potentially damaging one or more wires within the harness, which can result in either inadvertent deployment of the air bag or nondeployment of the air bag in the event of a crash.

Risk: An air bag that deploys inadvertently increases the risk of a crash. An air bag that does not deploy in the event of a crash increases the risk of injury.

Fix: Ford will notify owners, and dealers will install protective flocking tape onto the exposed edge of the 16-way seat cushion frames, and inspect the wire harness for damage, and repair or replace it as needed, free of charge. This recall began August 12, 2020. Owners may contact Ford/Lincoln customer service at 1-866-436-7332. Ford's number for this recall is 20S37.

ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR

Campaign #18V548000 · Aug 20, 2018

Issue: Ford Motor Company (Ford) is recalling certain 2018 Ford Edge, Lincoln MKX, 2019 Ford Flex, and Lincoln MKT vehicles. The power supply cables at the starter and the alternator may not have been properly secured, possibly resulting in an electrical arc.

Risk: An electrical arc can increase the risk of a fire.

Fix: Ford will notify owners, and dealers will inspect the alternator and starter motor power supply cables to verify that they are properly secured, correcting them as necessary, free of charge. The recall began September 26, 2018. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 18S25.

SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS

Campaign #25V544000 · Aug 22, 2025

Issue: Ford Motor Company (Ford) is recalling certain 2016-2018 Lincoln MKX and 2015-2018 Edge vehicles. The rear brake jounce hose may rupture and leak brake fluid.

Risk: A brake fluid leak can extend the distance required to stop the vehicle, increasing the risk of a crash.

Fix: Dealers will inspect and replace the brake jounce hoses and adjust brake jounce hoses with no damage present, free of charge. Interim owner letters notifying owners of the safety risk were mailed September 8, 2025. Additional letters will be sent once the remedy is available, anticipated August 2026. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 25S87.

Recall data refreshed Jul 19, 2026.

Essential maintenance

Critical for safety and preventing major damage

🛢️

Engine Oil & Filter (Oil-Life Monitor)

Every 10,000 mi

Change when the Oil-Life Monitor calls it — up to 10,000 miles or 12 months. EcoBoost engines (Aviator 3.0T): use the specified synthetic and don't stretch the monitor; turbos cook marginal oil.

Estimated cost — typical U.S. ranges

Dealer

~$120–$160

Shop

~$85–$115

DIY

~$25–$55

Full synthetic costs more than conventional. 5-quart 0W-20 + filter is the typical bill.

🔄

Tire Rotation

Every 7,500 mi

Rotate every 7,500 miles. Heavy Navigators shift a lot of weight — even wear is a ride-quality item, not just a tire-budget item.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Often free at the shop where you bought the tires — worth asking before paying.

🛑

Brake Inspection

Every 10,000 mi

Inspect pads, rotors, and parking brake at every oil service. Town Car livery duty and Navigator towing both count as severe service for brakes.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Most shops do this free as a courtesy with any service. Don't pay separately if you can avoid it.

Important maintenance

Keeps your vehicle running smoothly and efficiently

⚙️

Automatic Transmission Fluid

Every 150,000 mi

Ford schedules the 10-speed (10R80) and 6-speed automatics at 150,000 miles normal duty — but 60,000 miles with towing or livery use, which describes many Lincolns. Mercon ULV / the specified Mercon type only.

Estimated cost — typical U.S. ranges

Dealer

~$330–$500

Shop

~$235–$355

DIY

~$60–$180

Some sealed transmissions have no dipstick — fill is precise and best left to a shop. Many drivers can still DIY drain-and-fill.

⚡

Spark Plugs

Every 100,000 mi

V8 Navigator and Town Car: 100,000-mile plugs. EcoBoost V6 (Aviator, Nautilus 2.7T): commonly around 60,000 miles — check your year's guide; turbo engines run shorter plug lives.

Estimated cost — typical U.S. ranges

Dealer

~$285–$390

Shop

~$200–$275

DIY

~$25–$100

Iridium plugs cost more but last 100k+ miles. V6/V8 access varies wildly — some are tough.

💨

Engine Air Filter

Every 30,000 mi

Replace every 30,000 miles per Ford's schedule; sooner in dusty climates.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

5-minute job on most cars; the airbox lid usually has clips, no tools needed.

🔧

Rear Differential Fluid (RWD/4WD)

Every 60,000 mi

Navigator, Aviator RWD, and Town Car: replace rear axle fluid around 60,000 miles with towing or livery duty (150,000 normal per Ford). Limited-slip axles need the friction modifier.

Estimated cost — typical U.S. ranges

Dealer

~$150–$195

Shop

~$105–$135

DIY

~$20–$50

Drain plug + fill plug — straightforward DIY. AWD vehicles have two; budget for both.

🔗

Serpentine / Accessory Belt

Every 60,000 mi

Inspect from 60,000 miles; replace on cracking. The 5.4L Navigator's belt also drives the cooling fan clutch on some years — a failure overheats fast.

Estimated cost — typical U.S. ranges

Dealer

~$195–$235

Shop

~$135–$165

DIY

~$20–$50

DIY-friendly if you can reach the tensioner. Inspect for cracks rather than swap on a strict mileage interval.

Recommended maintenance

Extends the life of your vehicle and improves comfort

🌬️

Cabin Air Filter

Every 20,000 mi

Replace every 20,000 miles where equipped. (2004-era Town Cars predate cabin filters; modern Lincolns locate it behind the glovebox.)

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

Usually behind the glovebox. Shops charge labor for a 10-minute job — easy DIY win.

🌡️

Coolant Replacement

Every 100,000 mi

Motorcraft Orange (OAT) on modern models: first change around 10 years / 200,000 miles per Ford, though shops commonly refresh by 100,000. Older green-coolant V8s: every 5 years. Never mix chemistries.

Estimated cost — typical U.S. ranges

Dealer

~$285–$330

Shop

~$200–$235

DIY

~$25–$60

Use the manufacturer-specified coolant — wrong color/chemistry can damage the cooling system.

🔋

Battery Test & Service

Every 25,000 mi

Test annually after year 3. Feature-heavy Lincolns (air suspension compressors, power everything) expose weak batteries as electrical gremlins first.

Estimated cost — typical U.S. ranges

Dealer

~$225–$390

Shop

~$160–$280

DIY

~$130–$250

Most auto-parts stores test and install batteries free with purchase. Skip the dealer markup.

Known issues for this vehicle

What drivers and federal regulators have officially reported about the 2018 Lincoln Mkx.

Reported to NHTSA

Brake recall repair parts unavailable

SERVICE BRAKES, HYDRAULIC

5 NHTSA complaints · 2021-01 → 2026-06

“The contact owns a 2018 Lincoln MKX. The contact received notification of NHTSA Campaign Number: 25V544000(SERVICE BRAKES, HYDRAULIC) However, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time…”
— Owner report, NHTSA ODI #11741242
“TL* THE CONTACT OWNS A 2018 LINCOLN MKX. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 20V469000 (SERVICE BRAKES, SERVICE BRAKES, HYDRAULIC) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS UNAVAILABLE. THE CONTACT CALLED BAYWAY LINCOLN…”
— Owner report, NHTSA ODI #11389181

Read all complaints on NHTSA →

Catalytic converter P0430 fault codes

ENGINE

4 NHTSA complaints · 2024-02 → 2026-04

“My vehicle has had emissions vehicle since before I owned it up to now. The catalytic converter has been replaced 4 times which is unheard of. Its presently giving the same codes/issues. The last catalytic converter replacement was November of 2024. It has to be a computer…”
— Owner report, NHTSA ODI #11729226
“The contact owns a 2018 Lincoln MKX. The contact stated that while driving at an undisclosed speed, the check engine warning light was intermittently illuminated. The vehicle was taken to a local independent mechanic, where the vehicle was scanned, and a fault code…”
— Owner report, NHTSA ODI #11657452

Read all complaints on NHTSA →

High-mount stop lamp lens detachment

EXTERIOR LIGHTING

4 NHTSA complaints · 2025-09 → 2026-03

“Was advised by a law enforcement officer the high-mount stop lamp lens had detatched from the lamp housing. Apparently, the adhesive holding the plastic lens had deteriorated and allowed seperation of the components. The LED circuit board is now exposed to the elements…”
— Owner report, NHTSA ODI #11687125
“The 2018 Lincoln MKX Third Brake Light lens cracked off in 3 pieces while going through the automatic car wash dryer on the evening of Friday March 20, 2026. This appears to be an Engineering design issue.”
— Owner report, NHTSA ODI #11726271

Read all complaints on NHTSA →

Water intrusion and wet floor carpet

STRUCTURE

3 NHTSA complaints · 2022-04 → 2024-03

“Vehicle (SUV) floor board and truck had standing water from unknown source. Suspect rear hatch and/or glass roof design allows for environmental contamination to enter. Water travels down to floor and pools. For example, spare tire was found to be submerged…”
— Owner report, NHTSA ODI #11459501
“Unknown/Uncertain as to why the floor is wet on right rear passenger. Dealer unable to detect why floor board is wet. I need answers because this is a health risk/ lungs risk for my family and myself due to questionable mold May probably grow from the wet carpet and wet spell”
— Owner report, NHTSA ODI #11499828

Read all complaints on NHTSA →

Electrical power loss while driving

ELECTRICAL SYSTEM

2 NHTSA complaints · 2018-08 → 2018-09

“WE HAD OUR FIRST INCIDENT ON AUG 2 WHEN MY WIFE WAS DRIVING. CAR STALLED AT A TRAFFIC LIGHT AND SHE RESTARTED IT . TRANSMISSION WAS IN DRIVE AND SHE STARTED TO ACCELETE TO GO AHEAD. THE CAR ITSELF WENT INTO REVERSE AND ALMOST HIT THE CAR BEHIND HER. SHE WAS EXTREMELY SHAKEN…”
— Owner report, NHTSA ODI #11123198
“JULY 25, 2018: UPON STARTING CAR WHILE STATIONARY IN A PARKING SPOT, DASH LIGHT AND INFO CLUSTERS DID NOT LIGHT UP. UPON FURTHER INSPECTION, DRIVING AND BRAKE LIGHTS DID NOT WORK OR LIGHT UP. TURNED OFF CAR, RE-STARTED. ALL LIGHTS WORKED, THEN DROVE TO AN APPOINTMENT…”
— Owner report, NHTSA ODI #11130185

Read all complaints on NHTSA →

Issues on other model years

  • 2012 Lincoln Mkx →
  • 2013 Lincoln Mkx →
  • 2014 Lincoln Mkx →
  • 2015 Lincoln Mkx →
  • 2016 Lincoln Mkx →
  • 2017 Lincoln Mkx →

Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Jul 21, 2026. Investigation data refreshed Jul 21, 2026.

We display NHTSA's record with attribution; we don't editorialize on what these complaints mean for any specific vehicle.

Typical U.S. ranges. Actual quotes vary by shop, parts choice, and vehicle condition.

How we estimate: Dealer = OEM parts × 1.4 + labor × $165/hr. Shop = parts + labor × $115/hr. DIY = parts only.

This maintenance schedule for the 2018 Lincoln Mkx reflects Lincoln's published service intervals and the Intelligent Oil-Life Monitor system. Your actual service needs may vary based on driving conditions, climate, and vehicle usage. Always consult your owner's manual for model-specific recommendations.

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