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Lincoln · Known Issues

2015 Lincoln MKZ Problems: 6 Known Issues

2015 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026

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Issue summary

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2015 Lincoln MKZ has 6 documented known issues, with 3 rated critical. The most serious are Electric Power Steering Loss of Assist (Corroded Gear Motor Bolts) ($0-$1,200 repair), Door Latch Failure - Doors Can Open While Driving ($0-$400 repair) and 2.0L EcoBoost Internal Coolant Leak / Coolant Intrusion into Cylinders ($5,000-$15,000 repair). Across all issues with published estimates, repair costs range from $200 to $15,000. DIY maintenance guides at au7o.io.

In This Article

  • MKZ Body/Panels2
  • MKZ Steering1
  • MKZ Engine1
  • MKZ Transmission1
  • MKZ Electrical1
  • Recalls10
  • FAQ
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In This Article

  • Body/Panels2
  • Steering1
  • Engine1
  • Transmission1
  • Electrical1
  • Recalls10
  • FAQ

All 6 Known Issues

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ALL YEARS20202019201820172016201520142013201220112010200920082007

On the 2013-2018 Lincoln MKZ, on 2013-2018 MKZ models, the door latch pawl spring tab can fracture, particularly after exposure to high ambient temperatures. A weakened latch may not securely hold the door closed, so a door can open while the vehicle is in motion. Ford issued door-latch recalls (e.g., 20S15/20S30) covering Fiesta, Fusion, and MKZ. Owners often notice early warning signs before failure.

Common Symptoms

  • Door difficult to latch/close
  • Door ajar warning when door is shut
  • Increased wind noise
  • Door unexpectedly opening or not staying latched

How to Fix

Under the recall, Ford dealers replace the faulty door latches on the affected doors free of charge. If doors are hard to close, show 'door ajar' warnings, or have increased wind noise, owners should check VIN recall status and have the latches inspected/replaced.

Typical repair cost:$0 - $400

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High ConfidenceVerifiedReviewed Jun 2026

On the 2013-2016 Lincoln MKZ, the MKZ's signature retractable panoramic glass roof is a recurring trouble spot on 2013-2016 models. Worn seals and clogged drainage channels let water leak into the cabin, the power sunshade can jam, fail to retract/extend, or grind due to motor/track failure, and owners report creaking noises. A lawsuit also alleged the roof glass was too thin and prone to spontaneous shattering.

Common Symptoms

  • Water leaking into cabin / wet headliner or carpet
  • Sunshade stuck, won't open or close
  • Grinding noise from roof shade motor
  • Creaking/cracking noise over bumps
  • Roof glass spontaneously shattering

How to Fix

For leaks, clear and flush the sunroof drain tubes and replace worn seals. Sunshade problems often require motor or track repair/replacement of the shade assembly. Spontaneously shattered glass requires full roof glass replacement (often expensive and not covered unless under warranty/lawsuit terms).

Typical repair cost:$200 - $2,000

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High ConfidenceVerifiedReviewed Jun 2026

On the 2013-2016 Lincoln MKZ, on 2013-2016 MKZ (and platform-mate Fusion) models, road salt and contaminants can corrode the electric power steering gear motor attachment bolts. If the bolts corrode and fail, the steering gear motor can detach from the housing, causing a sudden loss of power steering assist and greatly increased steering effort, especially at low speed. This was recalled under NHTSA campaign 19V632000 for vehicles in northern salt-belt states. Earlier 2011-2012 models had a separate steering-motor-sensor loss-of-assist concern.

Common Symptoms

  • Sudden loss of power steering assist
  • Heavy or hard steering at low speed
  • Power steering warning light
  • Clunking/looseness in steering

How to Fix

Under recall 19V632000, dealers replace the steering gear motor bolts and apply a wax sealer free of charge; if bolts are already broken or missing the entire steering gear is replaced. Owners should verify recall status by VIN at nhtsa.gov.

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Typical repair cost:$0 - $1,200

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On the 2013-2020 Lincoln MKZ, second-generation MKZ models equipped with the 2.0L EcoBoost turbo engine can develop an internal coolant leak where coolant seeps from the cooling jacket into a combustion chamber, commonly cylinder 2. This is attributed to a cylinder head/block design and sealing defect. Burned coolant causes misfires, white exhaust smoke, chronically low coolant with no external leak, and in severe cases overheating and complete engine failure. The defect is the subject of a Ford EcoBoost coolant-intrusion class action.

This issue also affects: Ford Aerostar, Ford Bronco, Ford Bronco Sport

Common Symptoms

  • Check engine light with misfire code
  • Coolant level dropping with no visible external leak
  • White smoke from exhaust
  • Rough idle / hesitation
  • Engine overheating
  • Sweet coolant smell

How to Fix

Mild cases may be addressed with a head gasket or cylinder head replacement, but many vehicles require a long block or full engine replacement (commonly $5,000-$15,000). Affected owners should check for any applicable Ford coolant-intrusion warranty extension/class-action reimbursement and document low-coolant and misfire history.

Typical repair cost:$5,000 - $15,000

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On the 2010-2016 Lincoln MKZ, mKZ models with the 6F35 6-speed automatic commonly exhibit harsh or delayed engagement, a bump or slip on takeoff, and sluggish acceleration from 0-5 mph. A known cause is a 6F35 valve body design flaw addressed by a Ford TSB that modifies the valve body separator plate (deleting a hole) and removing a check ball. Owners also report harsh Drive/Reverse engagement on cold starts and overdrive shudder around 40 mph.

Common Symptoms

  • Harsh bump or clunk when shifting into Drive or Reverse
  • Hesitation/sluggishness from a stop then sudden engagement
  • Shudder while accelerating into overdrive around 40 mph
  • Delayed shifts

How to Fix

First verify transmission fluid level/condition, since low fluid mimics the symptoms. The TSB remedy modifies or replaces the valve body separator plate and removes the affected check ball; severe cases need valve body or transmission rebuild. A fluid service can help shudder in milder cases.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Motorcraft MERCON LV automatic transmission fluid XT-10-QLVC, 1 quart
    OEMXT-10-QLVC

    Drain/fill a confirmed 6F35 MKZ that specifies MERCON LV after level/condition diagnosis Fitment/availability: Live direct AutoZone page identifies Motorcraft XT-10-QLVC MERCON LV, price and Add to Cart. Confirm transmission code W/6F35,…

    AutoZone

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Typical repair cost:$300 - $2,500

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High ConfidenceVerifiedReviewed Jun 2026

On the 2013-2016 Lincoln MKZ, second-generation MKZ models with MyLincoln Touch / SYNC 2 frequently suffer infotainment failures rooted in the APIM module: black or frozen screen, random reboots, system staying frozen even after shutdown, and loss of functions like the rearview camera and defroster controls. The unreliability prompted a class-action settlement, since loss of the backup camera and defroster has safety implications.

Common Symptoms

  • Frozen or black infotainment screen
  • System reboots randomly or stays frozen after key off
  • Backup camera turns off or goes black while reversing
  • Unresponsive touchscreen / climate and defroster controls

How to Fix

A master/factory reset can clear minor glitches, but persistent failures require APIM module replacement or repair. Ford issued Customer Satisfaction Program 12M02 extending APIM warranty to 5 years regardless of mileage for many affected vehicles; aftermarket APIM rebuild services are also common.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Infotainment.com Ford/MyLincoln Touch Sync 2 APIM replacement exchange service
    OEMSYNC 2 APIM replacement service / Config X

    Replace a pinpoint-test-confirmed failed factory Sync 2 APIM on a 2013-2016 MKZ Fitment/availability: Live In Stock direct service page explicitly lists 2011-2016 Lincoln MKZ under Config X and requires selection of Config X plus navigat…

    Infotainment.com

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Typical repair cost:$300 - $900

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High ConfidenceVerifiedReviewed Jun 2026
NHTSA Recalls10 recalls

BACK OVER PREVENTION:SOFTWARE

Ford Motor Company (Ford) is recalling certain 2018-2022 Transit Connect, 2019-2020 MKZ, MKX, Edge, Continental, F-150, Nautilus, Fusion, 2019-2023 Ranger, Mustang, 2020-2021 EcoSport, Expedition, Navigator, 2020-2022 Escape, F-250 SD, Corsair, 2020-2023 Aviator, Transit, 2020-2024 Explorer, 2021-2024 Bronco Sport, and 2022-2024 Maverick vehicles. A software error may cause the rearview camera to display a blank image, or the image may remain on the display after the backing event has ended.

Campaign #25V44200027/06/2025

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

Ford Motor Company (Ford) is recalling certain 2013-2018 Fusion and Lincoln MKZ vehicles. The front brake hoses may rupture and leak brake fluid.

Campaign #23V16200010/03/2023

STEERING: STEERING WHEEL/HANDLE BAR

Ford Motor Company (Ford) is recalling certain 2014-2018 Lincoln MKZ and Ford Fusion vehicles. The steering wheel retaining bolt may loosen allowing the steering wheel to detach while driving.

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Other Lincoln Models

Lincoln Aviator31Lincoln Nautilus22Lincoln Navigator18Lincoln MKX10Lincoln Town Car9Lincoln Corsair6

Frequently Asked Questions

What are the most common Lincoln MKZ problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2015 Lincoln MKZ has 6 documented issues. The most frequently reported are: Electric Power Steering Loss of Assist (Corroded Gear Motor Bolts), Door Latch Failure - Doors Can Open While Driving, 2.0L EcoBoost Internal Coolant Leak / Coolant Intrusion into Cylinders. Of these, 3 are rated critical and should be addressed promptly.

Is the Lincoln MKZ reliable?

The 2015 Lincoln MKZ has 6 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 3 issues are rated critical: Electric Power Steering Loss of Assist (Corroded Gear Motor Bolts) and Door Latch Failure - Doors Can Open While Driving and 2.0L EcoBoost Internal Coolant Leak / Coolant Intrusion into Cylinders. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Lincoln MKZ problems?

Repair costs for known Lincoln MKZ issues range from $0 to $15,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Electric Power Steering Loss of Assist (Corroded Gear Motor Bolts), typically costs $0-$1,200 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2013-2016 Lincoln MKZ Electric Power Steering Loss of Assist (Corroded Gear Motor Bolts)?

On 2013-2016 MKZ (and platform-mate Fusion) models, road salt and contaminants can corrode the electric power steering gear motor attachment bolts. If the bolts corrode and fail, the steering gear motor can detach from the housing, causing a sudden loss of power steering assist a… Repairs typically run $0-$1,200. Severity: high.

What is the 2013-2018 Lincoln MKZ Door Latch Failure - Doors Can Open While Driving?

On 2013-2018 MKZ models, the door latch pawl spring tab can fracture, particularly after exposure to high ambient temperatures. A weakened latch may not securely hold the door closed, so a door can open while the vehicle is in motion. Ford issued door-latch recalls (e.g., 20S15/2… Repairs typically run $0-$400. Severity: high.

Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.

Data compiled from NHTSA recalls, manufacturer TSBs, automotive forums, and AI-assisted research. No aggregated owner-report counts available for this vehicle yet.

Campaign #18V167000
12/03/2018

POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER

Ford Motor Company (Ford) is recalling certain 2017-2018 Ford Edge and 2017 Lincoln MKZ vehicles. On vehicles with 2.0L gas engines and six-speed automatic transmissions, the torque converter weld studs may have been inadequately welded.

Campaign #18V39000011/06/2018

POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER

Ford Motor Company (Ford) is recalling certain 2017 Lincoln MKZ and Ford Edge and Fusion vehicles. On vehicles with 2.0L gas engines and six-speed automatic transmissions, the torque converter weld studs may have been inadequately welded.

Campaign #17V42700006/07/2017

+ 5 more recalls. Check all on NHTSA.gov

Enter your VIN at NHTSA.gov to check recalls specific to your vehicle.

What is the 2013-2020 Lincoln MKZ 2.0L EcoBoost Internal Coolant Leak / Coolant Intrusion into Cylinders?

Second-generation MKZ models equipped with the 2.0L EcoBoost turbo engine can develop an internal coolant leak where coolant seeps from the cooling jacket into a combustion chamber, commonly cylinder 2. This is attributed to a cylinder head/block design and sealing defect. Burned… Repairs typically run $5,000-$15,000. Severity: high.

What is the 2010-2016 Lincoln MKZ Harsh / Delayed Automatic Transmission Shifting (6F35)?

MKZ models with the 6F35 6-speed automatic commonly exhibit harsh or delayed engagement, a bump or slip on takeoff, and sluggish acceleration from 0-5 mph. A known cause is a 6F35 valve body design flaw addressed by a Ford TSB that modifies the valve body separator plate (deletin… Repairs typically run $300-$2,500. Severity: medium.

What is the 2013-2016 Lincoln MKZ Panoramic Retractable Glass Roof - Leaks, Stuck Sunshade, and Shattering?

The MKZ's signature retractable panoramic glass roof is a recurring trouble spot on 2013-2016 models. Worn seals and clogged drainage channels let water leak into the cabin, the power sunshade can jam, fail to retract/extend, or grind due to motor/track failure, and owners report… Repairs typically run $200-$2,000. Severity: medium.

What is the 2013-2016 Lincoln MKZ MyLincoln Touch / SYNC Infotainment Failures (APIM Module)?

Second-generation MKZ models with MyLincoln Touch / SYNC 2 frequently suffer infotainment failures rooted in the APIM module: black or frozen screen, random reboots, system staying frozen even after shutdown, and loss of functions like the rearview camera and defroster controls. Repairs typically run $300-$900. Severity: medium.