There are 1 owner-reported powertrain & transmission complaints for the 2011 Lincoln MKSin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
While driving the vehicle at normal speed with my wife and baby, car suddenly made a weird noise and started to smoke, the car lost power. I had to pull over right away , as car was smoking we smelled a propane like smell, and we noticed black grease leaking from the bottom. Soon as I got the car towed home , I looked under and notice the transfer box or PTO was busted with grease pouring out. I looked online and it’s a common issue with these cars. The transfer case is so close to the cat converter that it over heats the grease.
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