There are 2 owner-reported engine complaints for the 2015 Lincoln MKSin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The contact owns a 2015 Lincoln MKS. The contact stated while driving approximately 40 MPH or faster, the vehicle lost automotive power. During the failure the vehicle was coasted over to the side of the road and turned off for one minute before the vehicle restarted and continued driving. The failure was intermittent but had occurred twice within 10 minutes during the most recent failure. An unidentified warning light was illuminated during the failure. The failure occurred mainly while driving on highways or freeways. The rear-view camera intermittently failed to display an image of the rear of the vehicle. The failure had become more persistent over time. During an oil change, it was discovered that the drive axle from the rear to the front of the vehicle was leaking. The vehicle was taken to the dealer; however, the dealer was unable to determine the cause of the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.
The vehicle is exhausting leaked fluid through the vents inside cabin at 23,000 miles causing headaches and fatigue. The Power transfer unit does not allow for maintenance and has no drain plug. The unit seems to fail alot with Fords when looking online. It is dangerous for the driver to smell this inside the cabin.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026