Have you had any parts that had to be fixed or replace?
Yes, eventually every vehicle will have parts that need to be either repaired or replace.
Good preventative maintenance helps but sooner or later you will need something. Brakes can be a little as 10,000 miles or may last for 50,000 plus miles. I replace my battery at 4-5 years, others choose to wait until the battery fails.
Heather , are you just looking for something to worry about ? Not all 2016 Lincoln MKX vehicles will have the same problems other than normal wear items .